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.

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 Down Modes