5 V, 3.3 V and 2.5 V Quad UART, 5 Mbit/s (max.), with 64-byte FIFOs and Infrared (IrDA) Encoder/Decoder


Product Details


Key Features

  • 4 channel UART
  • 5 V, 3.3 V and 2.5 V operation
  • Industrial temperature range (-40 Cel to +85 Cel)
  • SC16C654B is pin and software compatible with the industry-standard ST16C454/554, ST16C654, ST68C454/554, TL16C554
  • SC16C654DB is pin and software compatible with ST16C654D, and software compatible with ST16C454/554, ST68C454/554, TL16C554
  • 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 inputs
  • 64-byte transmit FIFO
  • 64-byte receive FIFO with error flags
  • Automatic software (Xon/Xoff)/hardware (RTS/CTS) flow control
  • Programmable Xon/Xoff characters
  • Software selectable baud rate generator
  • Four selectable receive and transmit FIFO interrupt trigger levels
  • Standard modem interface or infrared (IrDA) encoder/decoder interface
  • Sleep mode
  • Standard asynchronous error and framing bits (start, stop and parity overrun break)
  • Transmit, receive, line status and data set interrupts independently controlled
  • False start-bit detection
  • Complete status reporting capabilities
  • 3-state output TTL drive capabilities for bi-directional data bus and control bus
  • Line break generation and detection
  • Internal diagnostic capabilities. Loop-back controls for communications link fault isolation
  • Prioritized interrupt system controls
  • Modem control functions (CTS, RTS, DSR, DTR, RI, CD)

Fully Programmable Character Formatting

  • 5, 6, 7, or 8-bit characters
  • Even, odd, or no parity formats
  • 1, 1 1/2 , or 2-stop bit
  • Baud generation (DC to 5 Mbit/s)

Part numbers include: SC16C654BIA68, SC16C654BIB64, SC16C654BIBM, SC16C654DBIB64.


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Design Files

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Engineering Services

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