PIC16F84AT-20/SS

Product Overview

Category

The PIC16F84AT-20/SS belongs to the category of microcontrollers.

Use

This microcontroller is commonly used in various electronic applications that require embedded control and processing capabilities.

Characteristics

• Low power consumption
• High-performance RISC CPU
• Wide operating voltage range
• Flash program memory
• EEPROM data memory
• I/O ports with programmable pull-up resistors
• Timer modules for precise timing operations
• Analog-to-digital converter (ADC)
• Serial communication interface

Package

The PIC16F84AT-20/SS is available in a small outline 20-pin SSOP package, which allows for compact designs and easy integration into electronic circuits.

Essence

The essence of the PIC16F84AT-20/SS lies in its ability to provide efficient and reliable control and processing capabilities in a compact form factor.

Packaging/Quantity

This microcontroller is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Operating Voltage: 2.0V to 5.5V
• Maximum Clock Frequency: 20 MHz
• Flash Program Memory: 1.75 KB
• Data Memory (RAM): 68 bytes
• I/O Pins: 13
• Timers: 1 x 8-bit, 1 x 16-bit
• ADC Resolution: 8 bits
• Communication Interfaces: USART, SPI, I2C

Detailed Pin Configuration

The PIC16F84AT-20/SS has a total of 20 pins, each serving a specific purpose. The pin configuration is as follows:

1. VDD - Power supply voltage
2. RA2/AN2/CVREF/VREF - Analog input channel 2 / Comparator reference voltage / Voltage reference
3. RA3/AN3/VREF - Analog input channel 3 / Voltage reference
4. RA4/T0CKI/C1OUT - Timer0 clock input / External clock source / Comparator output
5. MCLR/VPP - Master Clear input / Programming voltage supply
6. RA0/AN0 - Analog input channel 0
7. RA1/AN1 - Analog input channel 1
8. OSC1/CLKIN - Oscillator input
9. OSC2/CLKOUT - Oscillator output
10. RC0/T1OSO/T1CKI - Timer1 oscillator output / Timer1 clock input
11. RC1/T1OSI/CCP2 - Timer1 oscillator input / Capture/Compare/PWM module 2
12. RC2/CCP1 - Capture/Compare/PWM module 1
13. RC3/SCK/SCL - Serial clock input (SPI/I2C)
14. RC4/SDI/SDA - Serial data input (SPI/I2C)
15. RC5/SDO - Serial data output (SPI)
16. VSS - Ground
17. RB0/INT - External interrupt input
18. RB1 - General-purpose I/O
19. RB2 - General-purpose I/O
20. RB3 - General-purpose I/O

Functional Features

The PIC16F84AT-20/SS offers several functional features that enhance its usability and versatility:

1. Flash Program Memory: Allows for easy reprogramming of the microcontroller, enabling firmware updates and flexibility in application development.
2. EEPROM Data Memory: Provides non-volatile storage for critical data, ensuring data integrity even during power loss or system resets.
3. I/O Ports with Programmable Pull-up Resistors: Simplifies interfacing with external devices by eliminating the need for external pull-up resistors.
4. Timer Modules: Enables precise timing operations, essential for time-sensitive applications such as generating accurate delays or measuring time intervals.
5. Analog-to-Digital Converter (ADC): Facilitates the conversion of analog signals into digital values, enabling the microcontroller to interface with sensors and other analog devices.
6. Serial Communication Interface: Supports various serial communication protocols like USART, SPI, and I2C, allowing seamless integration with other devices.

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered applications.
• Compact form factor enables integration into space-constrained designs.
• Wide operating voltage range allows for compatibility with different power supply sources.
• Flash program memory allows for easy firmware updates and application modifications.
• Versatile I/O ports and communication interfaces enhance connectivity options.

Disadvantages

• Limited program memory capacity may restrict the complexity of applications.
• Limited RAM size may pose challenges in handling large data sets.
• Lack of advanced features found in more modern microcontrollers.

Working Principles

The PIC16F84AT-20/SS operates based on a RISC (Reduc