PIC16F874-04E/PQ

Microcontrollers Overview

The PIC16F874-04E/PQ is an 8-bit CMOS Flash microcontroller from the PIC16(L)F87x family, manufactured by Microchip Technology. It features a high-performance RISC CPU with up to 368 bytes of RAM and 256 bytes of EEPROM. The device supports clock frequencies up to 20 MHz and includes 33 I/O lines, an 8-channel 10-bit ADC, and multiple communication interfaces including USART, SPI, and I2C. It operates within a voltage range of 4.0 V to 5.5 V and is housed in a 44-pin Plastic Quad Flat Package (PQFP).

Microcontrollers Feature Summary

• Integrated 10-bit Analog-to-Digital Converter with eight selectable channels.
• Supports In-Circuit Serial Programming via PGC and PGD pins for flexible development.
• Includes hardware USART, SPI, and I2C serial communication peripherals.
• Features Capture/Compare/PWM modules for precise timing and motor control applications.

Microcontrollers Applications

• Industrial process control systems requiring analog signal acquisition.
• DC motor speed regulation circuits utilizing capture and comparison functions.
• Communication gateway devices implementing serial protocol stacks.
• Embedded instrumentation utilizing high-resolution ADC capabilities.

Microcontrollers Procurement Notes

Verify the suffix 'E' indicates extended temperature range specifications if applicable to your design environment. Confirm the package type matches your PCB footprint requirements. Ensure compatibility with your programming tool voltage levels. Check RoHS compliance status against current manufacturing standards. Validate pinout assignments against official datasheets before finalizing assembly.

Microcontrollers Selection Notes

Select this component when designing systems requiring robust analog interfacing alongside standard digital control logic. The combination of ample I/O lines and dedicated communication peripherals simplifies board layout. Consider the operating voltage constraints relative to your power supply architecture. Evaluate memory requirements against the specific program size limitations of the 7 KB Flash capacity.

Microcontrollers Part Context

This part belongs to the PIC16F87x series, a widely used family of 8-bit microcontrollers known for their versatility in embedded applications. The -04E designation typically denotes specific speed and temperature grade variations within the broader product line. These controllers are commonly utilized in cost-sensitive industrial and consumer electronics designs.

Microcontrollers Replacement Considerations

Direct substitutes include other variants within the PIC16F87x family such as the PIC16F874A or PIC16F877, provided pinouts and memory sizes align with the design requirements. Verify electrical characteristics and package dimensions before swapping components to ensure mechanical and functional compatibility.