PIC16F628A-I/SO

Product Overview

Category

The PIC16F628A-I/SO 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
• Timers and counters
• Analog-to-digital converter (ADC)
• Serial communication interface (USART, SPI, I2C)
• Watchdog Timer (WDT)
• Brown-out Reset (BOR)
• Power-on Reset (POR)

Package

The PIC16F628A-I/SO is available in a small outline (SO) package.

Essence

The essence of this microcontroller lies in its ability to provide a cost-effective solution for controlling and managing various electronic systems.

Packaging/Quantity

The PIC16F628A-I/SO is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• CPU Speed: 20 MHz
• Program Memory Size: 3.5 KB
• RAM Size: 224 bytes
• Data EEPROM Size: 128 bytes
• I/O Pins: 16
• ADC Resolution: 10-bit
• Operating Voltage Range: 2.0V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PIC16F628A-I/SO has a total of 18 pins, each serving a specific purpose. The pin configuration is as follows:

1. VDD - Positive power supply
2. RA0/AN0 - Analog input or digital I/O
3. RA1/AN1 - Analog input or digital I/O
4. RA2/AN2 - Analog input or digital I/O
5. RA3/AN3/VREF - Analog input or digital I/O
6. RA4/T0CKI/C1OUT - Timer0 clock input or digital I/O
7. RA5/MCLR/VPP - Master Clear input or programming voltage
8. GND - Ground
9. RB0/INT/CCP1 - Interrupt input or Capture/Compare/PWM module
10. RB1/SDI/SDA - Serial data input or I2C data
11. RB2/SDO/PGM - Serial data output or programming
12. RB3/PGC - Programming clock
13. RB4/PGD - Programming data
14. RB5/CK - External clock input
15. RB6/TX/CK - USART transmit or synchronous clock
16. RB7/RX/DT - USART receive or asynchronous data
17. OSC1/CLKIN - Oscillator input
18. OSC2/CLKOUT - Oscillator output

Functional Features

The PIC16F628A-I/SO offers several functional features that enhance its usability and versatility:

• High-performance RISC CPU for efficient execution of instructions
• Flash program memory for easy reprogramming
• EEPROM data memory for non-volatile storage
• I/O ports with programmable pull-up resistors for simplified interfacing
• Timers and counters for precise timing operations
• Analog-to-digital converter (ADC) for analog signal processing
• Serial communication interface (USART, SPI, I2C) for data exchange
• Watchdog Timer (WDT) for system reliability
• Brown-out Reset (BOR) for power supply monitoring
• Power-on Reset (POR) for reliable startup

Advantages and Disadvantages

Advantages

• Low power consumption extends battery life in portable applications.
• Wide operating voltage range allows compatibility with various power sources.
• Flash program memory enables easy firmware updates and modifications.
• Versatile I/O ports facilitate flexible interfacing with external devices.
• Integrated peripherals reduce the need for additional components.

Disadvantages

• Limited program memory size may restrict the complexity of applications.
• Limited RAM size may impose constraints on data storage and manipulation.
• Lack of advanced features compared to more advanced microcontrollers.
• Relatively lower clock speed may limit performance in demanding applications.

Working Principles

The PIC16F628A-I/SO operates based on the principles of a RISC (Reduced Instruction Set Computer) architecture. It executes instructions stored in its program memory, interacts with peripherals through its I/O ports, and performs calculations using its CPU and arithmetic logic unit (ALU). The microcontroller can be programmed using high-level languages or assembly language, allowing developers to create custom applications and control electronic systems.

Detailed Application Field Plans

The PIC16F628A-I/SO finds application in various fields, including but not limited to:

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