AT89C55WD-24JU

8051 体系结构闪存（可重新编程）微控制器，AtmelAtmel 提供 8051 可重新编程闪存微控制器，带可编程和可擦除只读存储器，使用高密度非易失内存技术。### 8051 体系结构微控制器，AtmelAtmel 的 8 位微控制器 MCU 基于 8051 指令集，结合久经考验的技术和最新特征及功能，所有均具有高级闪存。### 设备系列单周期芯 闪存 ISP（系统内可编程） 闪存（可重新编程） CAN 网络 MCU USB MCU ROMless

The is a low-power, high-performance 8-bit CMOS Microcontroller with 20kB of flash programmable read only memory and 256byte of RAM. The device is manufactured using high-density nonvolatile memory technology and is compatible with the industry standard 80C51 and 80C52 instruction set and pin out. The on-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with flash on a monolithic chip, the AT89C55WD is a powerful microcomputer which provides a highly flexible solution.

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Compatible with MCS®51 products

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10,000 Write/Erase cycles Endurance

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0 to 33MHz Fully static operation

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Three-level program memory lock

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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