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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.