89C51RD2 datasheets – compare manufacturers

Manufacturer Part Number Description
ATMEL Corporation Logo Atmel 89C51RD2 0 to 40MHz Flash Programmable 8-bit Microcontroller
ATMEL Corporation Logo Atmel AT89C51RD2 8-bit Flash Microcontroller
ATMEL Corporation Logo Atmel T89C51RD2 0 to 40MHz Flash Programmable 8-bit Microcontroller
NXP Logo NXP Semiconductors 89C51RD2 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
Philips Logo Philips Semiconductors P89C51RD2 8-bit Flash microcontroller