1/3/5/10PCS DS3231SN Precision RTC Real Time Clock Module DS3231 AT24C32 I2C With Memory For Arduino Raspberry Pi
SPECIFICATIONS
Application: Alarm
Brand Name: XYCJJCXL
Choice: yes
Condition: New
Dissipation Power: RTC Real Time Clock Memory Module
High-concerned chemical: none
Origin: Mainland China
Package: SMD
Quantity: 1
Supply Voltage: 3.3 - 5 .5 V
Type: Module
semi_Choice: yes
π 1PCS DS3231SN Precision RTC Real Time Clock Module DS3231 AT24C32 I2C With Memory For Arduino Raspberry Pi
π¦ Two Versions
β’ Standard DS3231 + AT24C32 Board (with CR2032 holder; coin cell not included)
β’ Mini DS3231 Module (compact, works on 3.3V & 5V systems, no level shifting required)
π§© Standard DS3231 + AT24C32 Board
Operating Voltage: 3.3β5.5V
RTC Chip: DS3231 high-accuracy TCXO RTC
Accuracy: 2 PPM (0β40 Β°C), approx. 1 minute/year
Two calendar alarms
Programmable square-wave output
Time/Calendar: seconds, minutes, hours, weekday, date, month, year; leap-year compensation to 2100
Internal temperature sensor Β±3 Β°C
EEPROM: AT24C32 (A0/A1/A2 addressable), default IΒ²C address 0x57
IΒ²C interface up to 400 kHz (at 5V)
CR2032 coin-cell holder for backup (battery not included)
Packaging: well-protected, intact on arrival
Board Size & Weight |
Arduino Uno Wiring |
π§Ώ Mini DS3231 Module
Adapts to 3.3V & 5V systems β no level shifting required.
Timing accuracy Β±5 ppm from β40 Β°C to +85 Β°C (Β±0.432 s/day)
Backup battery support for continuous timekeeping
Low power consumption
Package and functions compatible with DS3231
Full clock/calendar: sec/min/hr/weekday/date/month/year; leap-year to 2100
Two calendar alarms
1 Hz and 32.768 kHz outputs
Reset output and button de-bounce input
Fast IΒ²C up to 400 kHz
Supply Voltage: +2.3V to +5.5V
Digital temperature sensor Β±3 Β°C
Operating temperature: β40 Β°C to +85 Β°C
Chip package: 16-pin SO (300 mil)
Module Dimensions |
Weight |
π Quick Comparison
Item |
Standard DS3231 + AT24C32 |
Mini DS3231 |
Supply |
3.3β5.5V |
+2.3β5.5V (works on 3.3V/5V) |
Accuracy |
2 PPM @ 0β40 Β°C |
Β±5 ppm @ β40β+85 Β°C |
EEPROM |
AT24C32, default 0x57 |
β |
Backup Battery |
CR2032 holder (battery not included) |
Supports backup; no holder on mini board |
Size / Weight |
38.3Γ21.7 mm / β5.8 g |
12.6Γ13.6Γ13.5 mm / β2.7 g |
π¦ What You Get
1Γ DS3231 RTC Module (choose Standard board or Mini)
Packaging arrives intact and well-protected
Battery is not included
β οΈ Notes
Confirm wiring for your platform. Arduino Uno example: SCL β A5, SDA β A4, VCC β 5V, GND β GND.
AT24C32 default IΒ²C address is 0x57; A0/A1/A2 can change the address if needed.
CR2032 coin cell is not included.






- Standard Shipping: Standard Shipping (12β18 Business Days)
- Express Shipping: Expedited Shipping (5β9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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