Microchip PIC18F2455/2550/4455/4550 Data Sheet

Technical data sheet for the Microchip PIC18F2455/2550/4455/4550 high‑performance USB microcontroller series.

Brand: MICROCHIP
Category: Other device
Document type: Datasheet
Language: Chinese
Pages: 430
File format: PDF
File size: 7.3 MB
Published: 01 October, 2026
Updated: 01 October, 2026
Model: PIC18F2455/2550/4455/4550
MD5 checksum: 4B61AEE4C57872B3C52008F205106941
PDF: Microchip PIC18F2455/2550/4455/4550 Data Sheet PDF

About this manual

The document provides detailed specifications, pin‑outs, electrical characteristics and functional descriptions for the PIC18F2455, PIC18F2550, PIC18F4455 and PIC18F4550 microcontrollers. It covers device overview, oscillator options, power‑management modes, USB capabilities, I/O ports, timer modules, ADC, comparator and package information.

The data sheet also includes development support information, DC/AC characteristic graphs, and contact details for Microchip technical support worldwide. This manual is written in Chinese.

What's inside

Device Overview
Oscillator Configuration
Power Management Modes
Universal Serial Bus (USB)
I/O Ports
Timer Modules
10‑bit ADC Module
Comparator Module
Electrical Specifications
Package Information

Specifications

Flash program memory (PIC18F2455)	24 KB
Flash program memory (PIC18F2550)	32 KB
Operating voltage (standard devices)	4.2 V – 5.5 V
Idle mode current consumption	5.8 µA (typical)
Sleep mode current consumption	0.1 µA (typical)
Maximum USB endpoints	32 (dual 16)

Frequently asked questions

What is the typical current consumption in idle mode?

The device draws about 5.8 µA in idle mode (typical).

How many USB endpoints does the PIC18F2455/2550/4455/4550 support?

It supports up to 32 USB endpoints (dual 16).

What is the flash program memory size for the PIC18F2550?

The PIC18F2550 provides 32 KB of flash program memory.

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