Microchip Technology

PIC18F84J90T-I/PT

The PIC18F84J90T-I/PT is a microcontroller (MCU) manufactured by Microchip Technology. It belongs to the PIC18 series of mid-range MCUs, which are popular for their versatility and ease of use. Here's a brief description, features, and applications of the PIC18F84J90T-I/PT:

Description:

The PIC18F84J90T-I/PT is a flash-based, 8-bit microcontroller featuring a rich set of integrated peripherals and a high-performance core. It is designed for a wide range of applications, from simple control systems to more complex embedded applications.

Features:

1. CPU Core: It features a 16-bit instruction set with a wide range of instructions, enabling efficient code execution.
2. Memory:
   • Flash Memory: 64KB (for program storage)
   • RAM: 4KB (for data storage)
   • EEPROM: 256 bytes (for non-volatile data storage)
3. I/O: 40 digital I/O lines with 5 volt tolerant inputs.
4. Peripherals:
   • 4 USARTs (Universal Synchronous/Asynchronous Receiver/Transmitter) for serial communication.
   • 2 SPI modules (Serial Peripheral Interface) for high-speed serial data communication.
   • 1 I2C module (Inter-Integrated Circuit) for low-speed serial communication.
   • 3 Capture/Compare/PWM modules for generating various waveforms and using as timers.
   • 1 ADC (Analog-to-Digital Converter) with up to 13 channels.
   • 2 Comparators.
   • Up to 8 8-bit timers.
5. Programmability: It can be programmed using a variety of tools and languages, including assembly, C, and C++.
6. Power Management: It includes power-saving features like sleep modes and power-on reset (POR).
7. Security: It offers protection against unauthorized code reads and writes, as well as data encryption.
8. Package: The T/I/PT indicates a TQFP (Thin Quad Flat Package) package with 44 pins.

Applications:

1. Industrial Control: Used in motor control, sensor interfacing, and process control systems.
2. Automotive: Suitable for various in-vehicle applications, such as body control modules and engine management systems.
3. Consumer Electronics: Employed in appliances like washing machines, air conditioners, and home automation systems.
4. Telecommunications: Can be used for modems, routers, and other communication devices.
5. Medical Equipment: Utilized in medical devices for monitoring and controlling various parameters.
6. Data Acquisition Systems: Ideal for systems that require real-time data collection and processing.

The PIC18F84J90T-I/PT is a versatile MCU that can be tailored to a wide range of applications due to its extensive feature set and high level of integration. Its popularity stems from its balance between performance, cost, and ease of development, making it a go-to choice for many embedded system designers.