{"product_id":"1pcs-pcf8563-ds3231-pcf8523-at24c32-ds1302-ds2121sn-iic-precision-rtc-real-time-clock-memory-module-1","title":"1PCS PCF8563 DS3231 PCF8523 AT24C32 DS1302 DS2121SN IIC Precision RTC Real Time Clock Memory Module","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eApplication\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eComputer\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSZFYDOSH\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDissipation Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003en\/a\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOperating Temperature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003en\/a\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSupply Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003en\/a\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eis_customized\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003esemi_Choice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18pt; font-family: 'Times New Roman';\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003ePrecision clock module\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eDS3231Low-cost, high-precisionI2CReal-Time Clock(RTC)TCXO with integrated(TCXO)And crystals. The device incorporates a battery input , and maintains accurate timekeeping when main power supply is disconnected . Integrated Crystal improved long-term accuracy of the device and reduces the number of components of the production line .DS3231Offered in commercial and industrial temperature ranges,16Pin300milofSOPackage.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e   RTCSave seconds, minutes , hours, day , date , month, and year information. less than31The days of the month , end of the month date is automatically adjusted , including corrections for leap year. Clock work format can be24Hour or belt\/ AM \/ PMInstructions12Hour format. It provides two calendar alarm clock can be set and a square wave output can be set . Address and dataI2CBidirectional serial transmission bus .\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e   A precision temperature-compensated voltage reference and comparator circuit monitorsVCCState , detect power failures , provide a reset output , and to automatically switch to the backup supply when necessary . In addition ,\/ RSTMonitoring pins can be used as produceμPManual reset input.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eIn addition to high- precision timekeeping outside ,DS3231Also has some other function,These features extend the system host additional features and options. The device integrates an extremely accurate digital temperature sensor , throughI2C *Interface can be accessed(As the same time). Accuracy of the temperature sensor is± 3 ° C. The control circuit can be realized on-chip automatic power to detect and manage the main power supply and backup power(That low-voltage battery)Switching between the power supply . If the main power failure , the device can continue to provide accurate timing and temperature , performance is not affected . When the main power re-power or voltage value returns to within the permissible range , the on-chip reset function can be used to restart the system microprocessor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18pt; font-family: 'Times New Roman';\"\u003e\u003cstrong\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003eModule parameters:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e1.size: 38mm (long) * 22mm (wide) * 14mm (High)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e2.weight:8g\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e3 .Operating Voltage: 3.3--5.5V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e4 .Clock Chip:Precision clock chipDS3231\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e5 .Clock Accuracy: 0-40 °Within range,Accuracy2ppm,In error about1minute\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e6 .Belt2Calendar alarm clock\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e7 .A programmable square-wave output\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e8.Real-time clock generating seconds, minutes , hours, day , date , month and year time, and provide valid until2100Compensation leap year\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e9.Internal temperature sensor chip comes,Accuracy± 3 °\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e10 .Memory chip: AT24C32 (Storage capacity32K)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e11.IICBus Interface,The maximum transmission speed400KHz (Operating voltage5VTime)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e12 .Cascadable OtherIICequipment, 24C32Address by short circuitA0 \/ A1 \/ A2modify,The default address is0x57\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e13 .With rechargeable batteryLIR2032,Ensure the system after power failure,Any natural clock normal walking\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e14 .Packing:Single anti-static packaging\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eWiring instructions(Withuno r3Case) :\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eSCL → A5\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eSDA → A4\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eVCC → 5V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eGND → GND\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S307615b1f44b4f66adf33098e4cbbef3E.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003ePack:\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eDS1307 I2C real-time clock chip (RTC)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e24C32 32K I2C EEPROM memory\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eSolve the problem DS1307 with backup battery can not read and write.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eFully charged, it can provide the DS1307 timing 1.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eCompact design, 27mm * 28mm * 8.4mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eLeads to the a DS1307 clock pin, to provide the clock signal for the microcontroller.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eCan be cascaded to other I2C devices.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S4a83109c50a348efb589393728cb7a6aP.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eDESCRIPTION\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eThe DS1302 is a trickle charge clock chip from DALLAS that contains areal-time clock \/ calendar and 31 bytes of static RAM to communicate withthe microcontroller through a simple serial interface.Real-time clock\/calendatcircuit provides seconds, minutes, hours, days, weeks, months,years of\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003einformation, the number of days per month and leap year number of dayscan be adjusted automatically.The clock operation can be determined bythe AM \/ PM indication in a 24 or 12 hour format.(1) RST reset (2)1 \/ O datalines (3) SCLK serial clock.(1) RST reset(2)l \/ O data lines (3)SCLK serialclock.Clock \/ RAM read \/ write data in a byte or up to 31 bytes of charactergroup communication. DS1302 power consumption is very low to maintaindata and clock information when the power is less than 1mw\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eFEATURES\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eWide operating voltage 2.0v\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eWorking current 2.0V, less than 300nA\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eRead \/ write clock or RAM data, there are two transfer methods Single bytetransfer and multi-byte transmission character group mode\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e 3-wire interface compatible with TTL Vcc = 5V\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eOptional industrial temperature range -40 +85\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003ePCB for the single-panel, size: 44mm * 23mm * 1.6mmo With 4 positioning holes, diameter 3.1mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eWith 4 positioning holes, diameter 3.1mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eBackup battery for the authentic celestial sphere CR2032,voltage 3V,current 260mAh, non-rechargeable battery.Theoretical data retention timegreater than 10 years!\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eCrystal 32.768KHz,Japan imported crystal, matching capacitance of 6pF,size 2 * 6mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eDS1302 8-pin plug-in large chip made, the chip below IC Block, easy toreplace and plug the chip\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eModule operating voltage is compatible with 3.3V \/ 5V,and 5V and 3.3vsingle-chip connection\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eOperating temperature: 0 °--- 70 °\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S30818795f47045d9952ebb97de860729U.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eThis module is designed for Raspberry PI RTC module. The module adopts I2C communication mode, Raspberry PI. The onboard DS1307 clock chip and button battery ensure that the 1220 Raspberry PI can still remember the time. Reserved serial port, TTL convenient online debugging. Small size, large power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e1. Motherboard Maxim DS1307 chip;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eCR1220 button battery, power supply;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eYou can directly use shell scripts to operate;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eResponsible for serial port debugging of Raspberry PI;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eProgrammable square wave output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e2. Product interface:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eRaspberry PI B 2X13 socket;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eRaspberry PI A + \/ B + \/ 2 generation 2X20 socket;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eSupport Raspberry PI B\/A + \/ B + \/ 2;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e2 * 5p 2.54mm pitch interface.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e3: Parameters:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eOperating voltage is 5V;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eTemperature range from 0°C to + 40°C clock accuracy ±2ppm;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eThe real-time clock provides information on seconds, minutes, hours, days, days, months, and years, and provides leap year compensation valid until 2100;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eTwo calendar alarm clock;\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eOperating temperature :-10℃~ + 85℃.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e4: Typical applications:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eRemote information processing system\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa46be8a1c28c47ebaaa983f78406caf1s.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eOverview:\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e1. DS3231 high precision clock module for Raspberry Pi\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e2. the module can also be used for Arduino motherboard\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e3. The module itself can be adapted to 3.3 V and 5 V system,\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eno level conversion, it is super convenient!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eFeatures:\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e1. to 40° to + 85° temperature range, timing accuracy in\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e    a plus or minus 5 PPM (+\/- 0.432 SEC\/day)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e2. To provide continuous timing battery backup\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e3. Low power consumption\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e4. The device compatible with DS3231 encapsulation and function\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e5. Complete the clock calendar function including the second, minute,\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e6. Two calendar clock\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e7. 1 Hz and 32.768 kHz output\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e8. Reset the output and input button to tremble\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e9. High speed (400 KHZ) the I2C serial bus\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e10.+ 2.3 V to + 5.5 V power supply voltage\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e11.The accuracy of plus or minus 3° digital temperature sensor\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e12.- 40 ° to + 85° temperature range\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb863eb983bd648c0b61b80746b1a64f1p.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e1, PCF8563 clock chip\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003ePCF8563 is a PHILIPS company launched an industrial I2C bus interface with a very low power consumption of multi-functional clock \/ calendar chip. PCF8563 a variety of alarm function, timer function, clock output function and interrupt output function to complete a variety of complex timing services, and even for the microcontroller to provide watchdog function. It is a cost-effective clock chip, which has been widely used in the field of electric meters, water meters, gas meters, telephones, fax machines, portable instruments and battery powered instruments and meters.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eMain performance index of PCF8563:\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eYou can use the standby battery\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eWide voltage range of 1.0~5.5V.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eThis ultra low power consumption: the typical value is 0.25uA\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eIt through the I2C bus serial input \/ output\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eThis programmable clock output frequency: 32.768KHz, 1024Hz, 32Hz, 1Hz.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e* four alarm and timer function\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eIt includes a reset circuit, oscillator capacitor and power failure detection circuit\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eOpen drain interrupt output.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e400KHZ read and write speed\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cu\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e2, module interface description\u003c\/span\u003e\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eLeft battery mounting interface\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003ePay attention to the installation direction, according to the direction of the image installation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eRight INT interrupt output (generally not used)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eCOT clock output (generally not used)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eSCL IIC clock interface MCU IO port\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eSDA IIC digital interface MCU IO port\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eThe GND module of extraterrestrial grounding\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003eVCC power supply interface 3.3v-5v\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S07a8b8a6a8b24a95807003bc82494009g.jpg\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003e\u003cstrong\u003e\u003cu\u003eFeatures:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003eWorks great with an for Arduino using our RTC library or with a for Raspberry Pi (or similar single board linux computer)\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003eThe PCF8523 is simple and inexpensive but not a high precision device. It may lose or gain up to 2 seconds a day. For a high-precision, temperature compensated alternative, please check out the DS3231 precision RTC . If you need a DS1307 for compatibility reasons, check out our DS1307 RTC breakout.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003eThis product does not come with a CR1220 coin cell battery.  We recommend you purchase a coin cell battery to use with this product.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003ePCB \u0026amp; header are included\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003ePlugs into any breadboard, or you can use wires\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003e\u003cstrong\u003e\u003cu\u003eDescription:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003eThis is a great battery-backed real time clock (RTC) that allows your microcontroller project to keep track of time even if it is reprogrammed, or if the power is lost. Perfect for datalogging, clock-building, time stamping, timers and alarms, etc. Equipped with  PCF8523  RTC - it can run from 3.3V or 5V power \u0026amp; logic!\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003e\u003cstrong\u003e\u003cu\u003eSpecification:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\u003cspan style=\"font-size: 18px; font-family: 'Times New Roman';\"\u003e\u003cspan style=\"font-family: 'Times New Roman';\"\u003eTwo mounting holes\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: 'white-space:normal; word-spacing: 0px; text-transform: none; font-weight: 400; color: #222222; outline-width: 0px; font-style: normal; outline-style: none; orphans: 2; widows: 2; margin: 0px; letter-spacing: normal; outline-color: invert; background-color: #ffffff; text-indent: 0px; -webkit-tap-highlight-color: transparent; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 0px;'; font-size: 14px; box-sizing: content-box;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S49932756d9ee46b58e0701c2b1099b86n.jpg\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\r\n","brand":"Yoeruyo","offers":[{"title":"PCF8563 \/ China Mainland","offer_id":55374024147243,"sku":"14:10#PCF8563;200007763:201336100","price":5.99,"currency_code":"USD","in_stock":true},{"title":"PI DS3231 Module \/ China Mainland","offer_id":55374024180011,"sku":"14:201659813#PI DS3231 Module;200007763:201336100","price":14.67,"currency_code":"USD","in_stock":true},{"title":"PI RTC DS1307 \/ China Mainland","offer_id":55374024212779,"sku":"14:4044226#PI RTC DS1307;200007763:201336100","price":11.66,"currency_code":"USD","in_stock":true},{"title":"DS1302 \/ China Mainland","offer_id":55374024245547,"sku":"14:351074#DS1302;200007763:201336100","price":5.58,"currency_code":"USD","in_stock":true},{"title":"DS2121SN \/ China Mainland","offer_id":55374024278315,"sku":"14:94#DS2121SN;200007763:201336100","price":20.34,"currency_code":"USD","in_stock":true},{"title":"DS1307 \/ China Mainland","offer_id":55374024311083,"sku":"14:350852#DS1307;200007763:201336100","price":5.94,"currency_code":"USD","in_stock":true},{"title":"DS3231 \/ China Mainland","offer_id":55374024343851,"sku":"14:1202#DS3231;200007763:201336100","price":14.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S3f6cd9951c214adda12dfe545503aaddx.webp?v=1788323189","url":"https:\/\/yoeruyo.com\/products\/1pcs-pcf8563-ds3231-pcf8523-at24c32-ds1302-ds2121sn-iic-precision-rtc-real-time-clock-memory-module-1","provider":"Yoeruyo","version":"1.0","type":"link"}