LTC1544

LTC1544 Software-Selectable Multiprotocol Transceiver FEATURES s s DESCRIPTIO s s s s U APPLICATIO S s s s 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 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 onchip. The LTC1544 runs from a 5V supply and the charge pump on the LTC1543 or LTC1546. The part is available in a 28-lead SSOP surface mount package. Data Networking CSU and DSU Data Routers , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIO LL CTS DSR DTE or DCE Multiprotocol Serial Interface with DB-25 Connector DCD DTR RTS RXD RXC TXC SCTE TXD LTC1544 D4 R4 R3 R2 R1 D3 D2 D1 R3 R2 R1 LTC1543 D3 D2 D1 18 LL A (141) 13 5 CTS B CTS A (106) 10 8 DSR B DSR A (109)...