PIC16F873-04I/SO

Microcontrollers Overview

The PIC16F873-04I/SO is an 8-bit CMOS FLASH microcontroller from the PIC16F87X family, manufactured by Microchip Technology. It features a high-performance RISC CPU with a maximum operating frequency of 20 MHz and a 200 ns instruction cycle. The device includes 4K x 14 words of FLASH program memory, 192 bytes of data RAM, and 128 bytes of EEPROM. It provides 22 I/O lines across Ports A, B, and C, along with peripherals including two CCP/PWM modules, a 10-bit ADC with five channels, synchronous serial ports (SPI/I2C), and a USART.

Microcontrollers Feature Summary

• High-performance 8-bit RISC architecture with single-cycle instruction execution
• Integrated in-circuit serial programming and debugging capabilities via two pins
• Comprehensive peripheral set including timers, capture/compare/PWM, and analog-to-digital conversion
• Low-power CMOS technology with selectable oscillator options and sleep mode

Microcontrollers Applications

• Industrial control systems requiring robust peripheral interfaces
• Embedded applications utilizing asynchronous serial communication
• Motor control designs leveraging PWM and capture functions
• Data acquisition systems employing multi-channel analog-to-digital conversion

Microcontrollers Procurement Notes

Verify that the ordering suffix 'SO' corresponds to the 28-pin SOIC package as specified in the datasheet. Confirm the '-04' speed grade indicates a 4 MHz maximum clock rating if required for specific timing constraints. Ensure the '-I' designation matches the intended industrial temperature range requirements for the application environment.

Microcontrollers Selection Notes

Select this component when 4K word program memory suffices for the application logic. Choose this part over the PIC16F876 or PIC16F877 if fewer than eight I/O lines are needed and parallel slave port functionality is not required. Consider the 28-pin form factor for space-constrained PCB layouts compared to larger package options.

Microcontrollers Part Context

This device belongs to the PIC16F87X series, which also includes the PIC16F874, PIC16F876, and PIC16F877. These devices share identical pinouts and core architectures but differ in memory sizes and available I/O ports. The PIC16F873 specifically offers 4K FLASH and 192 bytes RAM, distinguishing it from the higher-capacity variants within the same family.

Microcontrollers Replacement Considerations

PIC16F873-I/SO