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MC145423 Datasheet Universal Digital Loop Transceiver

Manufacturer: Freescale Semiconductor (now NXP Semiconductors)

Overview: www.DataSheet4U.com MOTOROLA Order Number: MC145423/D Rev. 0, 8/24/00 Semiconductor Products Sector MC145423 Product Preview Universal Digital Loop Transceiver (UDLT-3) Pin Selectable Master/Slave Limited Distance Modem The MC145423 is a CMOS integrated circuit designed to be one of the major building blocks in digital subscriber voice/data telephone systems and remote data acquisition and control systems. The UDLT-3 incorporates into one device, all the functionality of the MC145421 (ISDN UDLT-2 master), MC145425 (ISDN UDLT-2 slave), MC145422 (UDLT-1 master), and MC145426 (UDLT-1 slave). Since these modes/functions are pin selectable, the MC145423 can be used in telephone switch line cards, as well as remote digital telsets or data terminals. • VDD = 4.5 V to 5.5 V • 28-Pin SOIC and TSSOP Packages • Protocol Independent • Pin Controlled Power-Down • LI Sensitivity Control in Master Mode • 2.

Key Features

  • Synchronous Full Duplex 160 kbps Voice and Data Communications in a 2B+2D Format for ISDN Compatibility.
  • Provides CCITT Basic Access Data Transfer Rate (2B+D) for ISDNs on a Single Twisted Pair Up to 1 km on 26 AWG or Larger Cable UDLT-1 Features.
  • Pin Controlled Loopback.
  • Automatic Power-Up/Down (Slave).
  • Full Duplex Synchronous 64 kbps Voice/Data Channel and Two 8 kbps Signaling Data Channels Over One 26 AWG Wire Pair Up to 2 km DW SUFFIX SOIC CASE.

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