• Part: DS21Q42
  • Manufacturer: Dallas Semiconducotr
  • Size: 1.28 MB
Download DS21Q42 Datasheet PDF
DS21Q42 datasheet preview
DS21Q42 page 2
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DS21Q42 page 3
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DS21Q42 Key Features

  • Additional hardware signaling capability including
  • Receive signaling re-insertion to a backplane multiframe sync
  • Availability of signaling in a separate PCM data stream
  • Signaling freezing
  • Interrupt generated on change of signaling data Full HDLC controller with 64-byte buffers in both transmit and receive p

Related Dallas Semiconducotr Datasheets

Part Number Description
DS21Q41B Quad T1 Framer
DS21Q43A Quad E1 Framer
DS21Q44 Enhanced QUAD E1 FRAMER
DS21Q48 5V E1/T1/J1 Line Interface
DS21Q348 3.3V E1/T1/J1 Line Interface

DS21Q42 Description

The DS21Q42 is an enhanced version of the DS21Q41B Quad T1 Framer. The DS21Q42 contains four framers that are configured and read through a mon microprocessor patible parallel port. Each framer consists of a receive framer, receive elastic store, transmit formatter and transmit elastic store.