AT89C55WD 8-bit Microcontroller 20KB Flash

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AT89C55WD 8-bit Microcontroller 20KB Flash



Manufacturer : Atmel
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The AT89Cx series are low-power, high-performance CMOS 8-bit microcontrollers.

The on-chip Flash allows the program memory to be user programmed by a conventional non-volatile memory programmer.

  • 8051 architecture
  • Two-level interupt architecture
  • Full-duplex serial port
  • On-chip oscillator and clock circuitry
  • 1000 Write/erase cycles


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Description

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RoHS

Datasheets

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Manufacturer Part #: AT89C2051-12PU

AT89C2051-12PU 8051 Mcu 20 Pins Uart 2k Flash - 12mhz Pdip Ind Temp Green 2.7 -

73-5050ROHS CompliantTechnical Datasheet£0.813

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Manufacturer Part #: AT89C4051-12PU

8051 4k Flash 2.7 to 5.5v Pdip - 8051 4k Flash 2.7 to 5.5v Pdip

73-5052ROHS CompliantTechnical Datasheet£0.913

discontinued

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Technical Specification

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DeviceFlashRamFrequencyVCCI/O pinsOrder code
(Kbytes)(Bytes)max. (MHz)(V)
AT89C2051-12PU2128122.7 to 6.01573-5050
AT89C4051-12PU4128122.7 to 6.01573-5052
AT89C55WD-24PU20256244.0 to 5.53273-4370


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