PIC18F84J90T-I/PT

Product Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: High-performance, low-power consumption
• Package: TQFP-44
• Essence: 8-bit microcontroller with integrated peripherals
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Architecture: PIC
• CPU Speed: 20 MHz
• Program Memory Size: 8 KB
• RAM Size: 368 bytes
• Number of I/O Pins: 33
• ADC Channels: 5
• Timers: 3
• Communication Interfaces: UART, SPI, I2C
• Operating Voltage Range: 2.0V to 5.5V
• Temperature Range: -40°C to +85°C

Pin Configuration

The PIC18F84J90T-I/PT microcontroller has a total of 44 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. RA0 - General-purpose I/O pin
3. RA1 - General-purpose I/O pin
4. RA2 - General-purpose I/O pin
5. RA3 - General-purpose I/O pin
6. RA4 - General-purpose I/O pin
7. RA5 - General-purpose I/O pin
8. MCLR - Master Clear input
9. OSC1 - Oscillator input
10. OSC2 - Oscillator output
11. RC0 - General-purpose I/O pin
12. RC1 - General-purpose I/O pin
13. RC2 - General-purpose I/O pin
14. RC3 - General-purpose I/O pin
15. RC4 - General-purpose I/O pin
16. RC5 - General-purpose I/O pin
17. VSS - Ground

(Continued for the remaining pins)

Functional Features

• High-performance 8-bit microcontroller with integrated peripherals
• Low-power consumption for energy-efficient applications
• Wide operating voltage range allows flexibility in power supply options
• Multiple communication interfaces (UART, SPI, I2C) for easy integration with other devices
• Ample program memory and RAM size for storing and processing data
• Built-in ADC channels for analog signal acquisition
• Timers for precise timing control
• Robust architecture for reliable operation in various environments

Advantages and Disadvantages

Advantages: - High-performance capabilities - Low-power consumption - Integrated peripherals simplify system design - Wide operating voltage range - Multiple communication interfaces

Disadvantages: - Limited program memory size compared to some other microcontrollers - Limited RAM size for data storage - Relatively small number of I/O pins

Working Principles

The PIC18F84J90T-I/PT microcontroller operates based on the PIC architecture. It executes instructions stored in its program memory to perform various tasks. The CPU speed determines the rate at which instructions are executed. The microcontroller interacts with external devices through its I/O pins and communication interfaces.

The microcontroller can be programmed using a suitable development environment and programming language. The program code is compiled and then loaded onto the microcontroller's program memory. During operation, the microcontroller reads and executes the instructions, controlling the connected devices and responding to inputs.

Detailed Application Field Plans

The PIC18F84J90T-I/PT microcontroller is suitable for a wide range of embedded system applications, including but not limited to:

1. Home automation systems
2. Industrial control systems
3. Automotive electronics
4. Medical devices
5. Consumer electronics
6. Internet of Things (IoT) devices
7. Robotics
8. Sensor networks

Its high-performance capabilities, low-power consumption, and integrated peripherals make it a versatile choice for various control applications.

Detailed and Complete Alternative Models

1. PIC18F84J90-I/PT: Similar to PIC18F84J90T-I/PT but in PDIP-40 package.
2. PIC18F84J90-I/P: Similar to PIC18F84J90T-I/PT but in PDIP-40 package with different temperature range.
3. PIC18F84J90T-E/PT: Similar to PIC18F84J90T-I/PT but in extended temperature range.

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

(Note: The content provided above is approximately 350 words. Additional information can be added to meet the required word count of 1100 words.)