SPECIFICATIONS

PIC18F4550 TFQP-44 PIC18F4550-I/PT microcomputer  8F4550 PIC 44-Pin High-Performance Enhanced Flash USB Microcontroller

Universal Serial Bus Features:                                                              

• USB V2.0 Compliant

• Low Speed (1.5 Mb/s) and Full Speed (12 Mb/s)

• Supports Control, Interrupt, Isochronous and Bulk Transfers

• Supports up to 32 Endpoints (16 bidirectional)

• 1 Kbyte Dual Access RAM for USB

• On-Chip USB Transceiver with On-Chip Voltage Regulator

• Interface for Off-Chip USB Transceiver

• Streaming Parallel Port (SPP) for USB streaming transfers (40/44-pin devices only)

Power-Managed Modes:

• Run: CPU on, Peripherals on

• Idle: CPU off, Peripherals on

• Sleep: CPU off, Peripherals off

• Idle mode Currents Down to 5.8 μA Typical

• Sleep mode Currents Down to 0.1 μA Typical

• Timer1 Oscillator: 1.1 μA Typical, 32 kHz, 2V

• Watchdog Timer: 2.1 μA Typical

• Two-Speed Oscillator Start-up

Flexible Oscillator Structure:

• Four Crystal modes, including High-Precision PLL for USB

• Two External Clock modes, Up to 48 MHz

• Internal Oscillator Block: - 8 user-selectable frequencies, from 31 kHz to 8 MHz

- User-tunable to compensate for frequency drift

• Secondary Oscillator using Timer1 @ 32 kHz

• Dual Oscillator Options allow Microcontroller and USB module to Run at Different Clock Speeds

• Fail-Safe Clock Monitor: - Allows for safe shutdown if any clock stops

Peripheral Highlights:

• High-Current Sink/Source: 25 mA/25 mA

• Three External Interrupts

• Four Timer modules (Timer0 to Timer3)

• Up to 2 Capture/Compare/PWM (CCP) modules:

- Capture is 16-bit, max. resolution 5.2 ns (TCY/16) - Compare is 16-bit, max. resolution 83.3 ns (TCY)

- PWM output: PWM resolution is 1 to 10-bit

• Enhanced Capture/Compare/PWM (ECCP) module:

- Multiple output modes

- Selectable polarity

- Programmable dead time

- Auto-shutdown and auto-restart

• Enhanced USART module: - LIN bus support

• Master Synchronous Serial Port (MSSP) module Supporting 3-Wire SPI (all 4 modes) and I2C™ Master and Slave modes

• 10-Bit, Up to 13-Channel Analog-to-Digital Converter (A/D) module with Programmable Acquisition Time

• Dual Analog Comparators with Input Multiplexing Special Microcontroller Features:

• C Compiler Optimized Architecture with Optional Extended Instruction Set

• 100,000 Erase/Write Cycle Enhanced Flash Program Memory Typical

• 1,000,000 Erase/Write Cycle Data EEPROM Memory Typical

• Flash/Data EEPROM Retention: > 40 Years

• Self-Programmable under Software Control

• Priority Levels for Interrupts

• 8 x 8 Single-Cycle Hardware Multiplier

• Extended Watchdog Timer (WDT): - Programmable period from 41 ms to 131s

• Programmable Code Protection

• Single-Supply 5V In-Circuit Serial Programming™ (ICSP™) via Two Pins

• In-Circuit Debug (ICD) via Two Pins

• Optional Dedicated ICD/ICSP Port (44-pin, TQFP package only)

• Wide Operating Voltage Range (2.0V to 5.5V)