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PIC18F4550-I/PT

MCHPPIC18F4550-I/PT

Microchip Technology
PIC PIC® 18F Microcontroller IC 8-Bit 48MHz 32KB (16K x 16) FLASH 44-TQFP (10x10)
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Overview

The PIC18F4550-I/PT is a versatile 8-bit microcontroller featuring a full-speed USB 2.0 interface with an integrated transceiver. Operating at up to 48MHz, it offers 32KB of Flash memory and 2KB of RAM, specifically designed for applications requiring robust connectivity and low power consumption. The device includes a dedicated 1KB USB RAM buffer and a Streaming Parallel Port for high-bandwidth data transfers.

Why Choose This Part

The primary advantage is the integrated USB 2.0 transceiver and voltage regulator, which significantly reduces external component count for bus-powered designs. It features a C-optimized architecture and a hardware 8x8 multiplier for efficient processing, alongside a durable 1,000,000 cycle EEPROM for reliable non-volatile parameter storage.

Applications

USB-to-Serial Bridges
Implementing custom communication bridges between legacy hardware and modern USB-enabled computers.
Industrial Data Loggers
Capturing sensor data and providing a high-speed USB interface for local data retrieval and configuration.
Custom Human Interface Devices (HID)
Developing specialized keyboards, mice, or game controllers using the integrated USB stack.
Laboratory Instrumentation
Providing a control interface and power via USB for small-scale medical or scientific measurement tools.

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 32KB (16K 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

Development is typically performed using the Microchip MPLAB X IDE and the XC8 compiler. For hardware debugging and programming, the MPLAB PICkit 4 or ICD 4 tools are required via the In-Circuit Serial Programming (ICSP) interface. Microchip provides the Libraries for Applications (MLA) which includes a complete USB stack to accelerate firmware development.

Also Consider

ATmega32U4 MCHPMicrochip Technology - A popular 8-bit AVR alternative with integrated USB, widely used in the hobbyist community and supported by the Arduino IDE.
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