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AT89C51 Microcontroller detail datasheet (8051 family microcontroller)
AT89C51 is a 8 bit processor based microcontroller. This microcontrolller has 40 pins and 32 pins are for inputs/outputs pins. It is operated on 5V supply and maximum current capacity of input/output pins is 10mA.
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 4 bytes of Flash programmable and erasable read only memory (PEROM). The devic is manufactured using Atmel’s high-density nonvolatile memory technology and 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 provide a highly-flexible and cost-effective solution to many embedded control applications.