Product Summary

The P89V51RD2 is an 80C51 microcontroller with 64 kB Flash and 1024 bytes of
data RAM.

Parametrics

Brown-out detection
n Low power modes
u Power-down mode with external interrupt wake-up
u Idle mode
n PDIP40, PLCC44 and TQFP44 packages

Features

80C51 Central Processing Unit
n 5 V Operating voltage from 0 to 40 MHz
n 64 kB of on-chip Flash program memory with ISP (In-System Programming) and
IAP (In-Application Programming)
n Supports 12-clock (default) or 6-clock mode selection via software or ISP
n SPI (Serial Peripheral Interface) and enhanced UART
n PCA (Programmable Counter Array) with PWM and Capture/Compare functions
n Four 8-bit I/O ports with three high-current Port 1 pins (16 mA each)
n Three 16-bit timers/counters
n Programmable Watchdog timer (WDT)
n Eight interrupt sources with four priority levels
n Second DPTR register
n Low EMI mode (ALE inhibit)
n TTL- and CMOS-compatible logic levels

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
P89V51RD2BN
P89V51RD2BN
NXP Semiconductors (founded by Philips)
IC 80C51 MCU 64K FLASH 40-DIP
Data Sheet
Negotiable 
P89V51RD2BN,112
P89V51RD2BN,112
NXP Semiconductors
8-bit Microcontrollers (MCU) 80C51 5V 16/32/64KB FLASH MCU 1 KB RAM
Data Sheet
Negotiable