of the AT89C51, as shown in the following table. effect if the microcontroller is in external execution mode. PSEN . as Timer 0 and Timer 1 in the AT89C AT89CPI Microchip Technology / Atmel 8-bit Microcontrollers – MCU UNSAWN WAFER 21 MIL BACKGRIND 89C51 – 24MHZ, PDIP, IND TEMP datasheet. AT89C51, AT89C51 pdf, Atmel, Download pdf datasheet. AT89CA-M, AT89CA-M AT89CA-M 8-bit Flash Microcontroller with Full Speed USB .

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AT89C51 is an 8-bit microcontroller and belongs to Atmel’s family. It can be erased and program to a maximum of times.

All these ports are 8-bit bi-directional ports, i. Except P 0 which needs external pull-ups, rest of the ports ah89c51 internal pull-ups. When 1s are written to these port pins, they are pulled high by the internal pull-ups and can be used as inputs. These ports are also bit addressable and so their bits can also be accessed individually.


AT89C51 Datasheet

This high-density System-in-Package SiP microcontrollee controller, power switches, and support components. Skip to main content. Port P 0 and P 2 are also used to provide low byte and high byte addresses, respectively, when connected to an external memory.

It can be programmed to operate at different baud rates.

Reset pin; Active high. Input receiver for serial communication. Output transmitter for serial communication.

AT89C51 Microcontroller

Write to external data memory. Read from external data memory. Quartz crystal oscillator up to 24 MHz. High-order address bits when interfacing with external memory. Program pulse input during Flash programming.

Programming enable voltage; 12V during Flash programming. Low-order address bits when interfacing with external memory. Supply voltage; 5V up to 6. Interface Datashwet with Arduino.

Interface SD Card with Arduino. SPI Module of Arduino.

ATMEL 89C51 | AT89C51 Microcontroller Pin Diagram & Description

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