PIC16F84AT-20I/SS

Product Overview

Category

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

Use

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

Characteristics

• Low power consumption
• High-performance RISC CPU
• 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
• Watchdog timer for system reliability

Package

The PIC16F84AT-20I/SS is available in a small surface mount package (SS) which enhances its compactness and ease of integration into electronic circuits.

Essence

The essence of the PIC16F84AT-20I/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, containing a specific quantity per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Operating Voltage: 2.0V to 5.5V
• Clock Speed: 20 MHz
• Program Memory Size: 1.75 KB
• Data Memory Size: 68 bytes
• I/O Pins: 13
• ADC Resolution: 8-bit
• Communication Interfaces: USART, SPI, I2C

Detailed Pin Configuration

The PIC16F84AT-20I/SS has a total of 18 pins, each serving a specific purpose. The pin configuration is as follows:

1. VDD - Power supply voltage
2. RA2 - General-purpose I/O pin
3. RA3 - General-purpose I/O pin
4. RA4/T0CKI - General-purpose I/O pin / Timer0 external clock input
5. MCLR/VPP - Master Clear input / Programming voltage input
6. RA0/AN0 - General-purpose I/O pin / Analog input AN0
7. RA1/AN1 - General-purpose I/O pin / Analog input AN1
8. OSC1/CLKIN - Oscillator input
9. OSC2/CLKOUT - Oscillator output
10. RC0/T1OSO/T1CKI - General-purpose I/O pin / Timer1 oscillator output / Timer1 external clock input
11. RC1/T1OSI/CCP2 - General-purpose I/O pin / Timer1 oscillator input / CCP2 module
12. RC2/CCP1 - General-purpose I/O pin / CCP1 module
13. VSS - Ground
14. RB0/INT - General-purpose I/O pin / External interrupt input
15. RB1 - General-purpose I/O pin
16. RB2 - General-purpose I/O pin
17. RB3 - General-purpose I/O pin
18. RB4 - General-purpose I/O pin

Functional Features

The PIC16F84AT-20I/SS offers several functional features that make it a versatile microcontroller for various applications:

1. High-performance RISC CPU: The microcontroller is equipped with a powerful CPU that enables efficient execution of instructions.
2. Flash Program Memory: It has a built-in flash memory for storing program code, allowing easy reprogramming and flexibility.
3. EEPROM Data Memory: The microcontroller includes EEPROM memory for non-volatile data storage, ensuring data retention even during power loss.
4. I/O Ports with Programmable Pull-up Resistors: The microcontroller provides configurable I/O ports with pull-up resistors, simplifying interfacing with external devices.
5. Timer Modules: It features timer modules that enable precise timing operations, essential for applications requiring accurate timekeeping or event triggering.
6. Analog-to-Digital Converter (ADC): The integrated ADC allows the microcontroller to convert analog signals into digital values, expanding its capabilities in sensor interfacing and measurement applications.
7. Serial Communication Interface: The microcontroller supports various serial communication protocols such as USART, SPI, and I2C, facilitating data exchange with other devices.
8. Watchdog Timer: It includes a watchdog timer that enhances system reliability by resetting the microcontroller if a software or hardware failure occurs.

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered applications.
• Compact package size enables integration into space-constrained designs.
• Flash program memory allows easy reprogramming and flexibility.
• Versatile I/O ports and communication interfaces enhance connectivity options.
• Integrated peripherals, such as timers and ADC, provide additional functionality.

Disadvantages

• Limited program memory size may restrict the complexity of applications.
• Limited data memory size may pose challenges for data-intensive applications.
• Lack of advanced features compared to more modern microcontrollers.