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.
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
