AT89C55WD-24PU

ATMEL  AT89C55WD-24PU  微控制器, 8位, 低功率高性能 CMOS, AT89C55, 24 MHz, 20 KB, 256 Byte, 40 引脚, DIP

The is a 8-bit low-power High-performance CMOS Microcontroller with 20kB of flash programmable read only memory and 256 bytes of RAM. The device is manufactured using Atmel"s high-density non-volatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pinout. The on-chip Flash allows the program memory to be user programmed by a conventional non-volatile memory programmer. By combining a versatile 8-bit CPU with flash on a monolithic chip, the Atmel AT89C55WD is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications. The AT89C55WD provides the following standard features 20kB of Flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timer/counters, a six-vector, two-level interrupt architecture, a full-duplex serial port, on-chip oscillator and clock circuitry.

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Compatible with MCS®-51 products

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20kB Reprogrammable flash memory

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10,000 Write/erase cycles endurance

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Three-level program memory lock

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256 x 8-bit Internal RAM

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32 Programmable I/O lines

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Three 16-bit timers/counters

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Eight interrupt sources

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Programmable serial channel

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Low-power idle and power-down modes

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Interrupt recovery from power-down mode

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Hardware watchdog timer

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Dual data pointer

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Power-off flag