DESCRIPTION
The LTC®1544 is a 4-driver/4-receiver multiprotocol transceiver. The LTC1544 and LTC1543 form the core of a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 or X.21 protocols. Cable termination for the LTC1543 may be implemented using the LTC1344A software-selectable cable termination chip or by using existing discrete designs. The LTC1546 includes software-selectable cable termination on-chip.

FEATURES
■ Software-Selectable Transceiver Supports:
   RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21
■ TUV/Detecon Inc. Certified NET1 and NET2
   Compliant (Test Report No. NET2/102201/97)
■ TBR2 Compliant (Test Report No. CTR2/022701/98)
■ Software-Selectable Cable Termination Using
   the LTC1344A
■ Complete DTE or DCE Port with LTC1543, LTC1344A
   or LTC1546 with Integrated Termination
■ Operates from Single 5V Supply with LTC1543

APPLICATIONS
■ Data Networking
■ CSU and DSU
■ Data Routers