D87C51FA-1

Microcontrollers Overview

The D87C51FA-1 is an 8-bit microcontroller manufactured by Rochester Electronics, LLC. It is based on the Intel 8051 CPU architecture and features 32 kilobytes of One-Time Programmable Read-Only Memory (OTPROM). The device operates with a maximum clock frequency of 16 MHz and utilizes CMOS technology. It is housed in a 68-pin Plastic Quad Flat Package (PQFP) or Leadless Chip Carrier (LCC-68) package.

Microcontrollers Feature Summary

• Integrates an 8-bit 8051 central processing unit core for standard instruction set execution.
• Includes 32 KB of non-volatile OTPROM for permanent program storage.
• Supports high-speed operation up to 16 MHz using CMOS manufacturing processes.

Microcontrollers Applications

• Embedded control systems requiring fixed firmware
• Industrial automation logic controllers
• Consumer electronics hardware interfaces

Microcontrollers Procurement Notes

Verify the specific manufacturer origin, as Rochester Electronics often supplies surplus or obsolescence inventory sourced from original equipment manufacturers like Intel. Confirm that the OTPROM content matches the required application code, as this memory type cannot be reprogrammed after fabrication. Ensure the package variant aligns with the target PCB footprint specifications.

Microcontrollers Selection Notes

Select this component when a legacy 8051 architecture is required with permanent program storage. The 16 MHz speed and 32 KB capacity suit moderate complexity embedded tasks. Compare against variants such as the N87C51GB if different pin counts or clock speeds are needed. Verify package compatibility with existing assembly lines before procurement.

Microcontrollers Part Context

This part belongs to the 8XC51 family of single-chip microcontrollers. These devices are widely used in industrial and commercial applications due to their robust architecture and mature ecosystem. Rochester Electronics provides these parts to support long-term production runs where original manufacturers may have discontinued supply.

Microcontrollers Replacement Considerations

The N87C51GB is a documented equivalent offering similar 8-bit 8051 functionality and 32 KB OTPROM capacity. Both components utilize the LCC-68 package format. Verify electrical characteristics and pinout compatibility before substituting.