5 V, 3.3 V and 2.5 V Dual UART, 5 Mbit/s (max.), with 16 B FIFOs

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  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

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Block Diagram

SC16C2552B Block Diagram

SC16C2552B Block Diagram


Key Features

  • Industrial temperature range (-40 °C to +85 °C)
  • 5 V, 3.3 V and 2.5 V operation
  • Pin-to-pin compatible to PC16C552, ST16C2552
  • Up to 5 Mbit/s data rate at 5 V and 3.3 V and 3 Mbit/s at 2.5 V
  • 5 V tolerant on input only pins
  • 16-byte transmit FIFO
  • 16-byte receive FIFO with error flags
  • Independent transmit and receive UART control
  • Four selectable receive FIFO interrupt trigger levels; fixed transmit FIFO interrupt trigger level
  • Modem control functions (CTS, RTS, DSR, DTR, RI, CD)
  • DMA operation and DMA monitoring via package I/O pins, TXRDY, RXRDY
  • UART internal register sections A and B may be written to concurrently
  • Multi-function output allows more package functions with fewer I/O pins
  • Programmable character lengths (5, 6, 7, 8), with even, odd or no parity


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