Product Summary

The AT89C51RD2 is a high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. It contains a 64-Kbyte Flash memory block for code and for data.

Parametrics

AT89C51RD2 absolute maximum ratings: (1)I = industrial: -40℃ to 85℃; (2)Storage Temperature: -65℃ to + 150℃; (3)Voltage on VCC to VSS: -0.5V to + 6.5V; (4)VVoltage on Any Pin to VSS: -0.5V to VCC + 0.5V; (5)Power Dissipation: 1 W.

Features

AT89C51RD2 features: (1)80C52 Compatible: 8051 Instruction Compatible, Six 8-bit I/O Ports (64 Pins or 68 Pins Versions), Four 8-bit I/O Ports (44 Pins Version), Three 16-bit Timer/Counters, 256 Bytes Scratch Pad RAM, 9 Interrupt Sources with 4 Priority Levels; (2)Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply; (3)ISP (In-System Programming) Using Standard VCC Power Supply; (4)2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default Serial Loader.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AT89C51RD2
AT89C51RD2

Other


Data Sheet

Negotiable 
AT89C51RD2-RDTUM
AT89C51RD2-RDTUM

Atmel

8-bit Microcontrollers (MCU) Microcontroller

Data Sheet

Negotiable 
AT89C51RD2-RLTUM
AT89C51RD2-RLTUM

Atmel

8-bit Microcontrollers (MCU) C51RD2 64K FLASH 3-5.5V Ind

Data Sheet

0-618: $3.34
AT89C51RD2-RLRUM
AT89C51RD2-RLRUM

Atmel

8-bit Microcontrollers (MCU) C51RD2 32K FLASH 5V Com

Data Sheet

0-962: $3.93
962-1000: $3.49
AT89C51RD2-RLRIM
AT89C51RD2-RLRIM


IC MCU FLASH 8051 EEP 64K 44VQFP

Data Sheet

Negotiable 
AT89C51RD2-RLTIM
AT89C51RD2-RLTIM


IC 8051 MCU FLASH 64K 44VQFP

Data Sheet

Negotiable 
AT89C51RD2-SLSUM
AT89C51RD2-SLSUM

Atmel

8-bit Microcontrollers (MCU) 64kB Flash 2048B RAM 2.7V-5.5V

Data Sheet

0-1: $3.81
1-10: $3.65
10-25: $3.48
25-100: $3.02
AT89C51RD2-SLRUM
AT89C51RD2-SLRUM

Atmel

8-bit Microcontrollers (MCU) C51RD2 64K FLASH 3-5.5V

Data Sheet

0-500: $3.34