Common Flash Interface (CFI)

 

 

 

Features

 Compatible with MCS-51™ Products

 4K Bytes of In-System Reprogrammable Flash Memory

 Endurance: 1,000 Write/Erase Cycles

 Fully Static Operation: 0 Hz to 24 MHz

 Three-Level Program Memory Lock

 128 x 8-Bit Internal RAM

 32 Programmable I/O Lines

 Two 16-Bit Timer/Counters

 Six Interrupt Sources

 Programmable Serial Channel

 Low Power Idle and Power Down Modes

 

 

Description

The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K

bytes 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 and pinout. The

on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with

Flash on a monolithic chip, the Atmel AT89C51 is a powerful microcomputer which

provides a highly flexible and cost effective solution to many embedded control applications.

 

 

 

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