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 leader), MC145425 (ISDN UDLT-2 follower), MC145422 (UDLT-1 leader), and MC145426 (UDLT-1 follower).
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.
An evaluation board is available for this device.
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