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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AT89C52 Microcontroller

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. Posted by Muhammad Ahmed on Designed by Gabfire Themes.

Port 2 outputs the high byte of the external memory address when the address is 16 bits wide. Telecommunication and Electronics Projects.

It has less complex feature than other microprocessor. You can follow any responses to this entry through the RSS 2. This allows a great amount of legacy code to be reused mivrocontroller modification in new applications.

By using this site, you agree to the Terms of Use and Privacy Policy. 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.


Atmel AT89 series

In other projects Wikimedia Commons. 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. 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.

From Wikipedia, the free encyclopedia. There are two different memory types: Retrieved from ” https: The alternate functions can only be activated if the corresponding bit latch in the port SFR contains a 1.

In this application, Port 0 outputs the low byte of the external memory address, time-multiplexed with the byte being written or read.

This microcomputer – or microprocessor -related article is a stub. Those ports can be used to output DATA and orders do other devices, or to read the state of a sensor, or a switch.

Filed under DescriptionHow Stuff Microconroller Most of the ports of the 89S52 have ‘dual function’ meaning that they can be used for two different functions. You can help Wikipedia by expanding it.


You must first of all glance over the project here. Views Read Edit View history. Convert to Blogger by SimplexDesign. Blog Archive Otherwise the port pin is stuck at 0.

The output drivers of Ports microcontrolle and 2, and the input buffers of Port 0, are used in accesses to external memory. A simpler architecture can be represented below. Newer Post Older Post Home.

AT89C52 | 89C52 Microcontroller Datasheet & Pin Description

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’. Hello, this very post is related to the RPM meter project.

This page was last edited on 16 Septemberat Feel free to leave a mcrocontroller. Each consists of a latch Special Function Registers P0 through P3an output driver, and an input buffer.