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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Reset pin; ,icrocontroller high. Program pulse input during Flash programming. Choosing Motor For Robots. All these ports are 8-bit bi-directional ports, i. The AT89C51 is no longer in production and Atmel does not support new design.

AT89CPC – AT89C51 Pin 24MHz 4kb 8-bit Microcontroller Technical Data

AT89C51 is an 8-bit microcontroller and belongs to Atmel’s family. Skip to main content. Read from external data memory.

Interface SD Card with Arduino. Programming enable voltage; 12V during Flash programming. TL — Programmable Reference Voltage. Port P 0 and P 2 are also used to provide low byte and high byte addresses, respectively, when connected to an external memory. Virgin Galactic — Commercial Space Flight.


Search Results for AT89C51 : 26 documents found

Input receiver for dataheet communication. Their collection has just piled up after Microchip has acquired Atmel. It is a 40 pin IC package with 4Kb flash memory. Write to external data memory. High-order address bits when interfacing with external memory. When 1s are written to these port pins, they are pulled high by the internal pull-ups and can be used as inputs. Also simulating you program on software before trying it on hardware will save a lot of time. Output dataheet for serial communication.

Submitted by webmaster on 14 May The AT89C51 datasheet of the Microcontroller and more detailed Features can be found at the bottom of this page. If you are planning on serious programming and expansion with community support then Keil is recommended. Instead the at98c51 AT89S51 is recommended for new applications. Except P 0 which needs external pull-ups, rest of the ports have internal pull-ups.

This high-density System-in-Package SiP integrates controller, power switches, and support components. It works with the popular architecture and hence is used by most beginners till date. SPI Module of Arduino.

What is Web Browser. Atmel microcontroller can be programmed with different software’s that is available in the market. These ports are also bit addressable and so their bits can also be accessed individually. Arduino, Keil uVision are the most used platforms to name a few.


The AT89C51 is an age old 8-bit microcontroller from the Atmel family. It can be erased and program to a maximum of times. Supply voltage; at89v51 up to 6.

Quartz crystal oscillator up to 24 MHz. Low-order address bits when interfacing with external memory. Interface GPS with Arduino. Arduino based GPS receiver.

AT89C51 Microcontroller Pinout, Features & Datasheet

In order to program the Atmel microcontroller we will need an IDE Integrated Development Environmentwhere the programming takes place.

The microcontoller points are just suggestions which might help one to select a MCU. But, since the AT89C51 has a strong community support if your motive is to learn embedded then AT89C51 can still mircocontroller a good choice. It can be programmed to operate at different baud rates.

Choosing Battery for Robots. Each MCU has its own advantage and disadvantage.