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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From Wikipedia, the free encyclopedia. Each consists of a latch Special Function Registers P0 through P3an output driver, and microcontroller input buffer. There are two different memory types: Most of the ports of the 89S52 have ‘dual function’ meaning that they can be used for two different functions. Telecommunication and Electronics Projects.

Those ports can be used to output DATA and orders do other devices, or to read the state of a sensor, or a switch. 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 mjcrocontroller is written between brackets.

Microcontroller AT89S52 Description – Telecommunication and Electronics Projects

In this application, Port 0 outputs the low byte of the external memory address, time-multiplexed with the byte being written or read. Based on the Intel core, the AT89 series remains very popular as general purpose microcontrollers, due to their industry standard instruction set, their low unit cost, and the availability of these chips in DIL DIP packages.


Posted by Muhammad Ahmed on You must first of all glance over the project here.

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This page was last edited on 16 Septemberat In other projects Wikimedia Commons. Retrieved from ” https: Filed under DescriptionHow Stuff Works? A simpler architecture can be represented below. 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 brackets. By using this site, you agree to the Terms of Use and Privacy Policy.

This allows a great amount of legacy code to be reused without modification in new applications. You can follow any responses to this entry through the RSS 2. You can help Wikipedia by expanding it. Hello, this very post is related to the RPM meter project.


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’.

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Otherwise the port pin is stuck at 0. 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.

AT89C52 Microcontroller

This microcomputer – or microprocessor -related article is a stub. Port 2 outputs the high byte of the external memory address when the address is 16 bits wide. The alternate functions can only be activated if the corresponding bit latch in the port SFR contains a 1.

The output drivers of Ports 0 microcontroler 2, and the input buffers of Port 0, are used in accesses to external memory. Convert to Blogger by SimplexDesign. It has less complex feature than other microprocessor.