Microchip PIC18F67J50-I/PT: A Comprehensive Technical Overview
The Microchip PIC18F67J50-I/PT represents a powerful and versatile 8-bit microcontroller within Microchip's extensive PIC18 family. Engineered for complex embedded applications requiring robust connectivity, substantial memory, and low-power operation, this device is a cornerstone for developers in the industrial, medical, and consumer electronics sectors. Its integration of a full-speed USB 2.0 controller alongside a rich set of peripherals makes it a standout solution for connected devices.
Housed in a 64-pin TQFP package, the PIC18F67J50 is designed for space-efficient PCB designs while providing ample I/O for interfacing with external components. At its core lies a high-performance 8-bit RISC CPU, capable of operating at up to 48 MHz with a 12 MIPS throughput, ensuring responsive performance for demanding control tasks.
A defining feature of this microcontroller is its integrated Full-Speed USB 2.0 transceiver. This hardware module simplifies the development of USB communication protocols (HID, CDC, custom, etc.), enabling the creation of devices like peripherals, data loggers, and diagnostic tools without requiring external PHY components. The module includes an on-chip voltage regulator for the USB interface, further reducing the external part count.
Memory resources are substantial for an 8-bit architecture. The device boasts 128 KB of self-programmable Flash memory for application code and 3,808 bytes of RAM for data handling. This capacity supports fairly complex programs and data buffers, which is essential for managing USB data packets and real-time operations.
The peripheral set is exceptionally comprehensive, featuring:
Dual Enhanced USARTs and an Addressable UART for advanced serial communication (RS-232, RS-485, LIN).
SPI and I²C™ modules for communication with a vast ecosystem of sensors, memories, and other ICs.
A 10-bit Analog-to-Digital Converter (ADC) with up to 13 channels, enabling precise measurement of analog signals.
Two Analog Comparators for quick, hardware-based voltage monitoring.
Dual Enhanced CCP (ECCP) modules and a 5-bit Digital-to-Analog Converter (DAC) for sophisticated pulse-width modulation (PWM) and analog signal generation tasks.
The microcontroller is designed for low-power operation, featuring multiple software-selectable power-saving modes (Idle, Sleep, and Peripheral Module Disable). This allows designers to optimize power consumption for battery-powered or energy-sensitive applications.
Development is supported by Microchip's mature ecosystem, including the MPLAB® X IDE and the PICkit™ 4 or MPLAB ICD 5 debuggers. The MPLAB Code Configurator (MCC) tool is particularly valuable, offering a graphical interface to generate initialization code and drivers, drastically accelerating the setup of the USB stack and complex peripherals.
ICGOODFIND: The PIC18F67J50-I/PT is a highly integrated 8-bit MCU that excels in USB-connected embedded systems. Its potent combination of a full-speed USB controller, large memory, an extensive peripheral set, and low-power features makes it an excellent choice for developers needing robust connectivity and processing capability in a mature and easy-to-use architecture.
Keywords: USB 2.0 Microcontroller, 8-bit RISC Architecture, Embedded Systems, Low-Power Operation, Peripheral Integration.
