P89V51RD2 Microcontroller (8051 compatible)

buy  P89V51RD2 is a 8051 compatible microcontroller with 32kB flash and 1024 Bytes of data RAM

The P89V51RD2 is a 8051 compatible microcontroller with 32kB flash and 1024 Bytes of data RAM.Available Package type is  40 pin DIP.

Rs 320/-         buy p89v51rd2 microcontroller from nxp      Free Shipping (all over India)

Datasheet for P89v51RD2 can be downloaded from here.

One of the advantages of this series is that it can be easily programmed using the onchip bootloader.You can use FlashMagic along with a few passive components to easily Program the chip 

A key feature of the P89V51RD2 is its X2 mode option. The design engineer can choose to run the application with the conventional 80C51 clock rate (12 clocks per machine cycle) or select the X2 mode (six clocks per machine cycle) to achieve twice the throughput at the same clock frequency. 

The flash program memory supports both parallel programming and in serial ISP. The P89V51RD2 is also capable of IAP, allowing the flash program memory to be reconfigured even while the application is running.


  • 80C51 compatible CPU
  • On chip Bootloader
  • 5 V operating voltage from 0 MHz to 40 MHz
  • 32 kB of on-chip flash user code memory with ISP and IAP
  • Supports 12-clock (default) or 6-clock mode selection via software or ISP
  • SPI and enhanced UART
  • PCA with PWM and capture/compare functions
  • Four 8-bit I/O ports with three high-current port 1 pins (16 mA each)
  • Three 16-bit timers/counters
  • Programmable watchdog timer
  • Eight interrupt sources with four priority levels
  • Second DPTR register
  • Low EMI mode (ALE inhibit)
  • TTL- and CMOS-compatible logic levels
  • Brownout detection
  • Low power modes
  • Power-down mode with external interrupt wake-up
  • Idle mode
  • DIP40 Package 


Block Diagram

p89v51 microcontroller development board


Pinout (40 pin DIP)

p89v51-8051 embedded system development board


Datasheet for P89v51RD2 can be downloaded from here.