PIC18F4550-I/P

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