Datasheet4U Logo Datasheet4U.com

89S8253 Datasheet 8-Bit Microcontroller

Manufacturer: Atmel (now Microchip Technology)

Download the 89S8253 datasheet PDF. This datasheet also includes the AT89 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AT89-S8253.pdf) that lists specifications for multiple related part numbers.

General Description

The AT89S8253 is a low-power, high-performance CMOS 8-bit microcontroller with 12K bytes of In-System Programmable (ISP) Flash program memory and 2K bytes of EEPROM data memory.

The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pinout.

The on-chip downloadable Flash allows the program memory to be reprogrammed in-system through an SPI serial interface or by a conventional nonvolatile memory programmer.

Key Features

  • Compatible with MCS™-51 Products.
  • 12K Bytes of In-System Programmable (ISP) Flash Program Memory.
  • SPI Serial Interface for Program Downloading.
  • Endurance: 10,000 Write/Erase Cycles 2K Bytes EEPROM Data Memory.
  • Endurance: 100,000 Write/Erase Cycles 64-byte User Signature Array 2.7V to 5.5V Operating Range Fully Static Operation: 0 Hz to 24 MHz Three-level Program Memory Lock 256 x 8-bit Internal RAM 32 Programmable I/O Lines Three 16-bit Timer/Counter.