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AT89C1051 Datasheet 8-Bit Microcontroller with 1K Byte Flash

Manufacturer: Atmel (now Microchip Technology)

Download the AT89C1051 datasheet PDF. This datasheet also includes the AT8 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AT8-9C10.pdf) that lists specifications for multiple related part numbers.

General Description

The AT89C1051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 1K byte of Flash programmable and erasable read only memory (PEROM).

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

By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C1051 is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications.

Key Features

  • Compatible with MCS-51™ Products.
  • 1K Byte of Reprogrammable Flash Memory.
  • Endurance: 1,000 Write/Erase Cycles 2.7V to 6V Operating Range Fully Static Operation: 0 Hz to 24 MHz Two-Level Program Memory Lock 64 bytes SRAM 15 Programmable I/O Lines One 16-Bit Timer/Counter Three Interrupt Sources Direct LED Drive Outputs On-Chip Analog Comparator Low Power Idle and Power D.

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