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IC 82C51A USART CMOS Transceiver 28-pin DIP

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  • Jameco Part no.: 52370
  • Manufacturer: Major Brands
  • Manufacturer no.: 82C51A
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Universal Synchronous Asynchronous Receiver Transmitter

The MSM82C51A-2 is a USART (Universal Synchronous Asynchronous Receiver Transmitter) for serial data communication. As a peripheral device of a microcomputer system, the MSM82C51A-2 receives parallel data from the CPU and transmits serial data after conversion. This device also receives serial data from the outside and transmits parallel data to the CPU after conversion. The MSM82C51A-2 configures a fully static circuit using silicon gate CMOS technology. Therefore, it operates on extremely low power at 100 mA (max) of standby current by suspending all operations.


  • Wide power supply voltage range from 3 V to 6 V
  • Wide temperature range from -40°C to 85°C
  • Synchronous communication up to 64 Kbaud
  • Asynchronous communication up to 38.4 Kbaud
  • Transmitting/receiving operations under double buffered configuration.
  • Error detection (parity, overrun and framing)

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  • Specification Value
    Supplier PackageDIP-28
    Maximum Supply Current5mA
    Number of Channels per Chip1
    Receive FIFO9999
    Transmit FIFO9999
    Transmitter and Receiver FIFO CounterNo
    Minimum Operating Supply Voltage4.5V
    Typical Operating Supply Voltage5V
    Maximum Operating Supply Voltage5.5V
    Minimum Operating Temperature-40°C
    Maximum Operating Temperature85°C
    MountingThrough Hole
    Product Width13.7mm
    Product Height4.57mm(Max)
    Product Length36.7mm
    Product TypeUART

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