Description
The AT87F51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of QuickFlash Programmable Read Only 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 QuickFlash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with QuickFlash on a monolithic chip, the Atmel AT87F51 is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications.

Features
• Compatible with MCS-51™ Products
• 4K Bytes of User Programmable QuickFlash™ Memory
• 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