AT89C51-Features

· Compatible with MCS-51™ Products

· 4K Bytes of In-System Re programmable 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 4Kbytes 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 pin out. 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.