PIC16C74A-04/PQ

Microcontrollers Overview

The PIC16C74A-04/PQ is an 8-bit CMOS microcontroller from the PIC16C7X family, featuring a high-performance RISC CPU with up to 4K x 14 words of EPROM program memory and 192 bytes of data RAM. It operates at clock frequencies up to 20 MHz with a 200 ns instruction cycle. The device includes 33 I/O pins, an 8-channel 8-bit A/D converter, two CCP modules, three timers, USART, SPI/I²C interfaces, and a Parallel Slave Port. It supports In-Circuit Serial Programming and features Brown-out Reset.

Microcontrollers Feature Summary

• High-performance 8-bit RISC architecture with single-cycle instruction execution
• Integrated 8-channel analog-to-digital converter for low-cost analog interfacing
• Comprehensive peripheral set including dual Capture/Compare/PWM modules and serial communication ports
• Low-power CMOS technology with selectable oscillator options and power-saving SLEEP mode

Microcontrollers Applications

• Security systems and remote sensors
• Appliance control units
• Automotive embedded applications
• Thermostat control and pressure sensing

Microcontrollers Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing development tools such as PICSTART Plus or PRO MATE II programmers. Confirm that the EPROM version meets prototype requirements before finalizing procurement orders.

Microcontrollers Selection Notes

Select this component for designs requiring moderate code storage with reprogrammable EPROM flexibility. It is suitable for applications needing multiple I/O lines and analog input capabilities. Consider the 44-pin MQFP package for space-constrained layouts. Evaluate power consumption requirements against the specified standby current levels.

Microcontrollers Part Context

This device belongs to the PIC16C7X mid-range microcontroller family, which enhances the earlier PIC16C5X architecture. It shares core features with siblings like the PIC16C74 and PIC16C77 but offers distinct memory and peripheral configurations. The family utilizes a Harvard architecture with separate program and data buses for improved bandwidth.

Microcontrollers Replacement Considerations

PIC16C74

Microcontrollers FAQ

What is the maximum operating frequency of the PIC16C74A?

The PIC16C74A supports a maximum clock input frequency of 20 MHz, resulting in a 200 ns instruction cycle time.

Does the PIC16C74A include a Parallel Slave Port?

Yes, the PIC16C74A features an 8-bit wide Parallel Slave Port (PSP) with external RD, WR, and CS controls.