89C51RD2 Datasheet (ATMEL Corporation) - 0 to 40MHz Flash Programmable 8-bit Microcontroller

89C51RD2, 0 to 40MHz Flash Programmable 8-bit Microcontroller

ATMEL Wireless and Microcontrollers T89C51RD2 is high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller.

It contains a 64 Kbytes Flash memory block for program and for data.

The 64 Kbytes Flash memory can be programmed either in parallel mode or in serial mode with t

89C51RD2 Features

* of the ATMEL Wireless and Microcontrollers 80C52 with 256 bytes of internal RAM, a 7-source 4-level interrupt controller and www.DataSheet4U.com three timer/counters. In addition, the T89C51RD2 has a Programmable Counter Array, an XRAM of 1024 bytes, an EEPROM of 2048 bytes, a Hardware Watchdog Time