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Home > Embedded ICs > 8bit MCU > AT89C51RB2-RLRUL

Microchip AT89C51RB2-RLRUL

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AT89C51RB2-RLRUL Overview

High-performance, 8-bit microcontroller with 16KB flash. It retains all features of the 80C52 with 256 Bytes of internal RAM, a 9-source 4-level interrupt controller, and three timer/counters.

It features a programmable counter array, an XRAM of 1024 bytes, hardware watchdog timer, keyboard interface, SPI interface, versatile serial channel that facilitates multiprocessor communication (EUART), and a speed improvement mechanism (X2 mode).

Implementing an external brown-out is recommended to prevent any flash/EEPROM corruption during power-on or power-off.

Applications

89C

Product Parameter

  • Core Processor 80C51

  • Speed 40MHz

  • Operating Temperature -40℃ ~ 85℃ (TA)

  • Program Memory Type FLASH

  • RAM Size 1.25K x 8

  • Number of I/O 32

  • Peripherals POR, PWM, WDT

  • Mounting Type Surface Mount

  • Oscillator Type External

  • Supplier Device Package 44-VQFP (10x10)

  • Package / Case 44-LQFP

  • Core Size 8-Bit

  • Connectivity SPI, UART/USART

  • Program Memory Size 16KB (16K x 8)

  • Voltage - Supply (Vcc/Vdd) 2.7V ~ 3.6V

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