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89C51/89C52/89C54/89C 80C51 8-bit microcontroller family. 4K/8K/16K/32K Flash. Product specification. Replaces Datasheets 89C51 of. 89C51 datasheet, 89C51 pdf, 89C51 data sheet, datasheet, data sheet, pdf, Atmel, 8 Bit Microcontroller with 4 Kbytes Flash. 89C51 89C51/89C52/89C54/89C58; 80C51 8-bit Microcontroller Family 4K/8K/ 16K/32K Flash. DESCRIPTION. The 89C51/89C52/89C54/89C58 contain a.

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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, microcotnroller.

Except P 0 which needs external pull-ups, rest of the ports have 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 micrlcontroller bits can also be accessed individually. This high-density System-in-Package SiP integrates controller, power switches, and support components.


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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 datzsheet.

Output transmitter for serial communication. 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 microocntroller 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 GPS with Arduino. Interface SD Card with Arduino. SPI Module of Arduino.

AT89C51 Microcontroller

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