Microchip

PIC18F4550 - Flash 40-pin High Performance Microcontroller with USB

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Features Low-Power Features - 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, 32 kHz, 2V - Watchdog Timer: 2.1 µA typical, 32 kHz, 2V - Two-Speed Oscillator Start-up Peripheral Features - High current sink/source 25 mA/25 mA - Three external interrupt - Enhanced Capture/ Compare/ PWM (ECCP) module - Compatiable 10-bit, up to 13-channels Analog-to-Digital Converter module (A/D) - Capture 16-bit, max. resolution 6.25 ns - Compare 16-bit, max. resolution 100 ns - Dual analog comparators Special Microcontroller Features - Priority levels for interrupts - 8 x 8 Single-Cycle Hardware Multiplier - Priority levels for interrupts - 100,000 erase/write cycle Enhanced FLASH program memory typical - 1,000,000 erase/write cycle Data EEPROM memory - Wide operating volatge range: 2.0V to 5.5V - Single supply 5V In-circuit Serial Programming via two pins - In-Circuit Debug (ICD) via two pins Oscillators - Foue Crystal modes - Two external Clock modes, up to 48 MHz - 8 user-selectable frequencies - Secondary oscillator using Timer1 @ 32 kHz - Fail-Safe Clock Monitor

Pin Description Pin Number Description 1 MCLR/VPP 2 RA0/AN0 3 RA1/AN1 4 RA2/AN2/VREF-/CVREF 5 RA3/AN3/VREF+ 6 RA4/T0CKI/C1OUT/C2OUT 7 RA5/AN4/SS/HLVDIN/C2OUT 8 RE0/AN5/CK1SPP 9 RE1/AN6/CK2SPP 10 RE2/AN7/OESPP 11 VDD 12 VSS 13 OSC1/CLKI 14 OSC2/CLKO/RA6 15 RC0/T1OSO/T13CKI 16 RC1/T1OSI/CCP2/UOE 17 RC2/CCP1/P1A 18 VUSB 19 RD0/SPP0 20 RD1/SPP1 21 RD2/SPP2 22 RD3/SPP3 23 RC4/D-/VM 24 RC5/D+/VP 25 RC6/TX/CK 26 RC7/RX/DT/SDO 27 RD4/SPP4 28 RD5/SPP5/P1B 29 RD6/SPP6/P1C 30 RD7/SPP7/P1D 31 VSS 32 VDD 33 RB0/AN12/INT0/SDI/SDA 34 RB1/AN10/INT1/SCK/SCL 35 RB2/AN8/INT2/VMO 36 RB3/AN9/CCP2/VPO 37 RB4/AN11/KBI0/CSSPP 38 RB5/KBI1/PGM 39 RB6/KBI2/PGC 40 RB7/KBI3/PGD

Pin Layout Dimensional Drawing

Technical Data Data Sheet Microchip - Data Sheet for PIC18F2455/2550/4455/4550 Application Notes Microchip - PIC Application Notes