Ideal for low power (nanoWatt) and connectivity applications that benefit from the availability of three serial ports: FS-USB(12 Mbit/s), I?C? and SPI? (up to 10 Mbit/s) and an asynchronous (LIN capable) serial port (EUSART). Large amounts of RAM memory for buffering and Enhanced FLASH program memory make it ideal for embedded control and monitoring applications that require periodic connection with a (legacy free) Personal Computer via USB for data upload/download and/or firmware updates. While operating up to 48 MHz, the PIC18F2455 is also mostly software and hardware compatible with the PIC16C745 Low-Speed USB OTP devices.

  • 1K byte Dual Port RAM + 1K byte GP RAM
  • Full Speed Transceiver
  • 16 Endpoints (IN/OUT)
  • Internal Pull Up resistors (D+/D-)
  • 48 MHz performance (12 MIPS)
  • Pin-to-pin compatible with PIC16C7X5
Parameter Name Value Value
Program Memory Type Flash Flash
Program Memory (KB) 24 24
CPU Speed (MIPS) 12 12
RAM Bytes 2,048 2,048
Data EEPROM (bytes) 256 256
Digital Communication Peripherals 1-UART, 1-A/E/USART, 1-SPI, 1-I2C1-MSSP(SPI/I2C) 1-UART, 1-A/E/USART, 1-SPI, 1-I2C1-MSSP(SPI/I2C)
Capture/Compare/PWM Peripherals 2 CCP 2 CCP
Timers 1 x 8-bit, 3 x 16-bit 1 x 8-bit, 3 x 16-bit
ADC 10 ch, 10-bit 10 ch, 10-bit
Comparators 2 2
USB (ch, speed, compliance) 1, FS Device, USB 2.0 1, FS Device, USB 2.0
Temperature Range (C) -40 to 85 -40 to 85
Operating Voltage Range (V) 2 to 5.5 2 to 5.5
Pin Count 28 28
PIC18F2455/2550/4455/4550 Data sheetData Sheets10/27/20096988KB
PIC18F2455/2550/4455/4550 Family Silicon/Data Sheet ErrataErrata08/05/2009343KB
PIC18F2455/2550/4455/4550 Rev. A3 Silicon ErrataErrata09/04/2008162KB
Timer1 Module Data Sheet ErrataErrata03/08/2010230KB
Migrating from PIC18F to PIC18FXXJ Flash DevicesMigration Documents01/12/2006253KB
PIC18F to PIC24F Migration: An OverviewMigration Documents03/28/2006770KB
PIC18F2XXX/4XXX Flash MCU Programming SpecificationProgramming Specification10/02/2015384KB
AN1095 - AN1095, Emulating Data EEPROM for PIC18 and PIC24 MCUs and dsPIC DSCsAppNote06/27/2011427KB
AN1204 - Microchip MiWi P2P Wireless ProtocolAppNote11/16/2010417KB
AN1229 - Class B Safety Software Library for PIC MCUs and dsPIC DSCsAppNote04/24/2012439KB
AN1310 - High-Speed Bootloader for PIC16 and PIC18 DevicesAppNote02/03/2010482KB
AN937 - Implementing a PID Controller Using a PIC18 MCUAppNote06/30/2004266KB
AN950 - Power Management for PIC18 USB Microcontrollers with nanoWatt TechnologyAppNote11/19/2004259KB
AN953 - Data Encryption Routines for PIC18 MicrocontrollersAppNote03/01/2013355KB
AN956 - Migrating Applications to USB from RS-232 UART with Minimal Impact on PC SoftwareAppNote12/03/2004253KB
TB095 - Modifying the PICDEM USB Board for PIC18 Full-Speed USB MicrocontrollersAppNote11/04/2005188KB
8-bit PIC? Microcontroller SolutionsBrochures05/02/20146041KB
MPLAB? X IDE Product OverviewSell Sheets07/11/2011182KB
PIC18XXXX MCU Family Product OverviewProduct Line Documents12/18/2003815KB
Corporate Product Selector GuideProduct Line Card04/13/201610173KB
PIC Microcontroller Compiled Tips 'n Tricks GuideTips and Tricks04/22/20095964KB
PIC? MCU Tips 'n Tricks Featuring nanoWatt XLP TechnologyTips and Tricks04/22/2009643KB
MPLAB IDE PICSTART Plus User's GuideUser Guides10/22/20041401KB
PICDEM? FS USB Demonstration Board User's GuideUser Guides04/02/20131137KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
PIC18F2455-I/SO28SOIC-40C to +85CTUBE3.963.873.783.473.30
PIC18F2455-I/SP28SPDIP-40C to +85CTUBE4.134.033.943.623.44
PIC18F2455T-I/SO28SOIC-40C to +85CT/R4.013.913.823.513.34
PIC18LF2455-I/SO28SOIC-40C to +85CTUBE4.164.063.963.653.47
PIC18LF2455-I/SP28SPDIP-40C to +85CTUBE4.334.234.123.793.61
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RoHS Information
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PIC18F2455/2550/4455/4550 Data sheet PIC18F4550
PIC18F2455/2550/4455/4550 Data sheet GPIODM-KPLCD
PIC18F2455/2550/4455/4550 Family Silicon/Data Sheet Errata PIC18F4550
PIC18F2455/2550/4455/4550 Rev. A3 Silicon Errata PIC18F4550
Timer1 Module Data Sheet Errata PIC16F88
Migrating from PIC18F to PIC18FXXJ Flash Devices PIC18F87J10
PIC18F to PIC24F Migration: An Overview PIC24FJ16GA004
PIC18F2XXX/4XXX Flash MCU Programming Specification PIC18F4580
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AN1310 PIC16F1939
AN1310 Source Code PIC16F1939
AN937 PIC18F87J10
AN937 Source Code PIC18F87J10
AN950 PIC18F67J50
AN953 PIC18F25K80
AN956 PIC18F87J50
TB095 PIC18F86J50
8-bit PIC? Microcontroller Solutions PIC16F1939
MPLAB? X IDE Product Overview 24VL025
PIC18XXXX MCU Family Product Overview PIC18F4550
Corporate Product Selector Guide SST49LF080A
PIC Microcontroller Compiled Tips 'n Tricks Guide PIC24FJ64GB412
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PICDEM? FS USB Demonstration Board User's Guide PIC18F4550
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