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R68C552 - Dual Asynchronous Communications Interface Adapter

Description

The Rockwell CMOS R68C552 Dual Asynchronous Communications Interface Adapter (DACIA) provides an easily implemented, program controlled two-channel interface between 16-bit microprocessor-based systems and serial communication data sets and modems.

Features

  • Low power CMOS N-well silicon gate technology.
  • Two independent full duplex channels with buffered receivers and transmitters.
  • Data seUmodem control functions.
  • Internal baud rate generator with 15 programmable baud rates (50 bps to 38,400 bps).
  • Program-selectable internally or externally controlled receiver and transmitter bit rates.
  • Programmable word lengths, number of stop bits, and parity bit generation and detection.
  • Programmabl.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (R68C552-Rockwell.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number R68C552
Manufacturer Rockwell
File Size 1.16 MB
Description Dual Asynchronous Communications Interface Adapter
Datasheet download datasheet R68C552 Datasheet
Additional preview pages of the R68C552 datasheet.

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Full PDF Text Transcription

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R68C552 '1'Rockwell R68C552 Dual Asynchronous Communications Interface Adapter (DACIA) PRELIMINARY DESCRIPTION The Rockwell CMOS R68C552 Dual Asynchronous Communications Interface Adapter (DACIA) provides an easily implemented, program controlled two-channel interface between 16-bit microprocessor-based systems and serial communication data sets and modems. The DACIA is designed for maximum programmed control from the microprocessor (MPU) to simplify hardware implementation. Dual sets of registers allow independent control and monitoring of each channel. ( Transmitter and Receiver bit rates may be controlled by an internal baud rate generator or external times 16 clocks. The baud rate generator accepts either a crystal or a clock input, and provides 15 programmable baud rates.
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