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PIC18F4455-I/P

MCHPPIC18F4455-I/P

Microchip Technology
PIC PIC® 18F Microcontroller IC 8-Bit 48MHz 24KB (12K x 16) FLASH 40-PDIP
Active300 in stock
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Overview

The PIC18F4455-I/P is a high-performance 8-bit microcontroller featuring an integrated USB 2.0 interface and Microchip nanoWatt technology. Housed in a 40-pin PDIP package, it is a favorite for prototyping legacy-style hardware that requires direct USB connectivity and a high number of I/O pins.

Why Choose This Part

It offers a full-speed USB 2.0 transceiver, eliminating the cost and space of external interface ICs. The 40-pin PDIP form factor allows for rapid prototyping on breadboards, while the 25mA source/sink capability per I/O enables direct driving of LEDs and small relays.

Applications

USB Peripheral Development
Creating custom USB HID, CDC, or MSD devices without requiring external bridge chips.
Industrial Data Logging
Utilizing the 256 bytes of EEPROM and 24KB Flash to store and transmit sensor data over USB or UART.
Legacy System Upgrades
Replacing older 8-bit controllers in 40-pin DIP sockets to add USB functionality and higher clock speeds up to 48MHz.
Education and Prototyping
Using the breadboard-friendly PDIP package to teach embedded USB stack implementation and microcontroller fundamentals.

Key Specifications

Speed 48MHz
RAM Size 2K x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 35
Core Processor PIC
Package / Case 44-TQFP
Data Converters A/D 13x10b
Oscillator Type Internal
Program Memory Size 24KB (12K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 44-TQFP (10x10)
Voltage - Supply (Vcc/Vdd) 4.2V ~ 5.5V

Getting Started

Develop applications using Microchip MPLAB X IDE and the XC8 compiler. Hardware debugging and programming are supported through the dedicated ICSP port using tools like the MPLAB PICkit 4 or ICD 4. Ensure a 100nF ceramic capacitor is placed near the VDD/VSS pins for stability at 48MHz.

Part of PIC Microcontrollers family » PIC18F

PIC18F Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Flash RAM I/O Pins Package Speed ADC/DAC Stock
PIC18F4455-I/P (this part) 24KB 2K 35 TQFP-44 48M A/D 13x10b 300
PIC18F46K22-I/PT 64KB 3.8K 35 TQFP-44 64M A/D 30x10b 12,258
PIC18F4550-I/P 32KB 2K 35 TQFP-44 48M A/D 13x10b 1,339
PIC18F25Q10-I/SS 32KB 2K 25 SSOP-28 64M A/D 24x10b; D/A 1x5b 40,450
PIC18F26K42-I/SO 64KB 4K 25 SOIC-28 64M A/D 24x12b; D/A 1x5b 25,499
PIC18F46K22-I/P 64KB 3.8K 35 TQFP-44 64M A/D 30x10b 91,882
PIC18F46Q10-I/PT 64KB 3.53K 36 TQFP-44 64M A/D 35x10b; D/A 1x5b 2,422
PIC18F25K22-I/SS 32KB 1.5K 24 SSOP-28 64M A/D 19x10b 7,744
PIC18F26K83-E/SS 64KB 4K 25 SSOP-28 64M A/D 24x12b; D/A 1x5b 4,276
PIC18F26Q10-I/SS 64KB 3.53K 25 SSOP-28 64M A/D 24x10b; D/A 1x5b 1,184
PIC18F25K42-E/SS 32KB 2K 25 SSOP-28 64M A/D 24x12b; D/A 1x5b 620
PIC18F16Q40-I/SS 64KB 4K 18 SSOP-20 64M A/D 17x12b; D/A 2x8b 581
PIC18F25Q10-I/SO 32KB 2K 25 SOIC-28 64M A/D 24x10b; D/A 1x5b 1,745
PIC18F14K22-I/P 16KB 512 x 8 17 DIP-20 64M A/D 12x10b 1,733
PIC18F26Q84-I/SS 64KB 4K 25 SSOP-28 64M A/D 24x12b; D/A 1x8b 1,049
PIC18F4550-I/PT 32KB 2K 35 TQFP-44 48M A/D 13x10b 1,941
PIC18F47K42-E/MV 128KB 8K 36 UFQFN-40 64M A/D 35x12b; D/A 1x5b 257
PIC18F47Q10-I/PT 128KB 3.53K 36 TQFP-44 64M A/D 35x10b; D/A 1x5b 429
PIC18F4520-I/P 32KB 1.5K 36 TQFP-44 40M A/D 13x10b 4,695
PIC18F45K22-I/PT 32KB 1.5K 35 TQFP-44 64M A/D 30x10b 2,240
PIC18F4620-I/P 64KB 3.8K 36 TQFP-44 40M A/D 13x10b 7,121

Also Consider

PIC18F4550-I/P MCHPMicrochip Technology - Provides more Flash memory (32KB vs 24KB) in the same pin-compatible 40-pin PDIP package.