The LTC1546 is a 3-driver/3-receiver multiprotocol transceiver with on-chip cable termination. When combined with the LTC1544, this chip set forms a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 and X.21 protocols. All necessary cable termination is provided inside the LTC1546. In most applications, the LTC1546 replaces both an LTC1543 and an LTC1344A without any changes to the PC board. The LTC1546 runs from a single 5V supply using an internal charge pump that requires only five space-saving surface mounted capacitors. The LTC1546 is available in a 28-lead SSOP surface mount package. Applications * Data Networking * CSU and DSU * Data Routers * Software-Selectable Transceiver Supports: RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21 * TUV Telecom Services Inc. Certified NET1, NET2 and TBR2 Compliant * On-Chip Cable Termination https://elecena.pl/product/251127/software-selectable-multiprotocol-transceiver-with-termination 2007-03-02 https://elecena.pl/product/251127/software-selectable-multiprotocol-transceiver-with-termination 2016-04-27 https://elecena.pl/product/251127/software-selectable-multiprotocol-transceiver-with-termination 2025-01-22