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PIC16F874A from MICROCHIP

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PIC16F874A

Manufacturer: MICROCHIP, MIC

28/40/44-Pin Enhanced Flash Microcontrollers

Partnumber Manufacturer Quantity Availability
PIC16F874A MICROCHIP, MIC 116 In Stock

Description and Introduction

28/40/44-Pin Enhanced Flash Microcontrollers # Introduction to the PIC16F874A Microcontroller  

The PIC16F874A is a versatile 8-bit microcontroller from Microchip Technology, designed for embedded control applications. Built on a high-performance RISC architecture, it features a wide operating voltage range (2.0V to 5.5V), making it suitable for both low-power and standard applications.  

This microcontroller includes 4 KB of Flash program memory, 192 bytes of RAM, and 128 bytes of EEPROM, providing ample storage for firmware and data. It operates at a clock speed of up to 20 MHz, ensuring efficient execution of instructions. The PIC16F874A integrates multiple peripherals, such as a 10-bit ADC, PWM modules, USART, SPI, and I²C interfaces, enhancing its adaptability in communication and sensor-based systems.  

With 33 I/O pins, it supports flexible interfacing with external components. Its robust feature set, combined with low power consumption, makes it ideal for industrial automation, consumer electronics, and automotive applications. Additionally, its in-circuit programming capability simplifies firmware updates during development and deployment.  

Engineers favor the PIC16F874A for its reliability, ease of integration, and extensive development support, including compilers, debuggers, and application notes. Its balance of performance and cost-effectiveness ensures its continued relevance in embedded system design.

Application Scenarios & Design Considerations

28/40/44-Pin Enhanced Flash Microcontrollers

Alternative Part Number

  • ATMEGA328P-PU --: Popular 8-bit AVR MCU with similar 28/40-pin DIP options, comparable flash and peripherals; a common functional substitute when porting simple embedded designs.
  • PIC18F4520-I/P --: Higher-performance PIC18 family device in 40-pin DIP with similar I/O count and peripherals, offering an upgrade path within the same PIC ecosystem.
  • STM32F103C8T6 --: Widely available 32-bit ARM Cortex-M3 MCU with comparable I/O and timers; suitable when a more modern, higher-performance replacement is acceptable.
  • ATMEGA16A-PU --: 8-bit AVR microcontroller with comparable pin count, memory, and peripherals; widely available and often used as a functional substitute in similar embedded designs.
  • PIC16F887 --: Enhanced mid-range PIC16 with similar feature set and pinout compatibility, offering a straightforward migration path within the PIC family.
  • AT89S52-24PU --: Classic 8051-compatible 8-bit MCU with comparable I/O and memory resources, suitable for designs where the PIC-specific peripherals are not critical.

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