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Alternatives to Microchip Technology AT89C51RD2-RLTUM

Microchip Technology AT89C51RD2-RLTUM and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for Microchip Technology AT89C51RD2-RLTUM

AT89C51RD2-RLTUM compared against its qualified second sources
AT89C51RD2-RLTUMMicrochip TechnologyAT89C51RD2T-RLTUMMicrochip TechnologyAT89C51ED2T-RLTUMMicrochip Technology
FFF CompatibilityThe part uses the same 44-LQFP (10x10) footprint and identical pin assignments as the original device.The physical package, lead dimensions, and pitch (0.8mm) are identical to the original component.All core processing, electrical characteristics, memory capacities, and peripheral modules exactly match the target part's specifications.It shares the exact pinout and 44-LQFP package configuration, allowing it to mount directly onto existing boards.The package dimensions, physical structure, and surface-mount orientation match the original device.This part is functionally equivalent to the original but offers enhanced utility via built-in EEPROM storage.
AI Summary

AT89C51RD2-RLTUM by Microchip Technology: 80C51 89C Microcontroller IC 8-Bit 60MHz 64KB (64K x 8) FLASH 44-VQFP (10x10).

This component is the direct manufacturer-recommended successor to the obsolete AT89C51RD2-RLTUM, remaining in active production to support legacy and new designs seamlessly. It provides a drop-in replacement with identical electrical, mechanical, and timing characteristics.

  • Direct manufacturer-recommended active replacement
  • Identical core architecture (80C51) and 60 MHz clock speed
  • Perfect pinout alignment in the same 44-LQFP footprint

An enhanced sibling from the same active Microchip family, this device matches all physical and electrical specifications of the original part while introducing 2KB of internal EEPROM. It is an excellent drop-in upgrade path when non-volatile data retention is beneficial.

  • Active-status replacement from the same microcontroller family
  • Includes an additional 2KB of EEPROM for non-volatile data storage
  • Identical 60 MHz core speed, 64KB Flash, and 2KB RAM sizes
  • Software may require minor updates if the extra EEPROM memory space is to be utilized
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedIn stockIn stock
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