Low-power, high-performance CMOS 8-bit microcontroller with 8KB of ISP flash memory. The device uses Microchip high-density, nonvolatile memory. The AT89C52 is a low-power, high-performance CMOS 8-bit microcomputer with 8K bytes of Flash programmable and erasable read only memory (PEROM). The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which.

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It is the CPU that will Read the program from the FLASH memory and Execute it by interacting with the different peripherals Diagram below shows the pin configuration of the 89S52, where the function of each pin is written next to it, and, if it exists, the dual function is written between 892.

AT89C52 | 89C52 Microcontroller Datasheet & Pin Description

You can help Wikipedia by expanding it. This page was last edited on 16 Septemberat By using this site, you agree to the Terms of Use and Privacy Policy. Filed micdocontroller DescriptionHow Stuff Works?

Most of the ports of the 89S52 have ‘dual function’ meaning that they can be used for two different functions. Posted by Muhammad Ahmed on In this application, Port 0 outputs the low byte of the external memory address, time-multiplexed with the byte being written or read.


Retrieved from ” https: Views Read Edit View history. This allows a great amount of legacy code to be reused without modification in new applications. Designed by Gabfire Themes. Hello, this very post is related microcontrolelr the RPM meter project. The output drivers of Ports 0 and 2, and the input buffers of Port 0, are used in accesses to external memory.

Atmel AT89 series

It has less complex feature than other microprocessor. Based on the Intel core, the AT89 series remains very popular as general purpose microcontrollers, due to their industry standard instruction set, their microcontrroller unit cost, and the availability of these chips in DIL DIP packages.

You must first of all glance over the project here. A simpler architecture microcontrolle be represented below. Shortly, RAM is used to store variable during program execution, while the EEPROM memory is used to store the program itself, that’s why it is often referred to as the ‘program memory’. The alternate functions can only be activated if the corresponding bit latch in microcontrolled port SFR contains a 1. There are two different memory types: This microcomputer – or microprocessor -related article is a stub.

Atmel has also created an LP low power series of these chips with a “Single Cycle Core”, making the execution speed of these chips considerably faster. In other projects Wikimedia Commons.

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Telecommunication and Electronics Projects. Each consists of a latch Special Function Registers P0 through P3an output driver, and an input buffer. You can follow any responses to this entry through the RSS 2.

AT89S52 – Microcontrollers and Processors – Microcontrollers and Processors

Convert to Blogger by SimplexDesign. Port 2 outputs the high byte of the external memory address when the address is 16 bits wide.

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Newer Post Older Post Home. Blog Archive Those ports can be used to output DATA and orders do other devices, or to read the state of a sensor, or a switch. Feel free to leave a response. Otherwise the port pin is stuck at 0.

Diagram below shows the pin configuration of the 89S52, where the function of each pin is written next to it, and, if it exists, the dual function is written between brackets.