MXL1544

19-1992; Rev 0; 4/01 www.DataSheet4U.com +5V Multiprotocol, Software-Selectable Control Transceivers General Description Features o MXL1544/MAX3175, MXL1543, MXL1344A Chipset Is Pin Compatible with LTC1544, LTC1543, LTC1344A Chipset o Chipset Operates from a Single +5V Supply o Software-Selectable DCE/DTE o Supports V.28 (RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA-530A, X.21, RS-423) Protocols o Flow-Through Pin Configuration o True Fail-Safe Operation o Low 0.5µA Shutdown Current (No-Cable Mode) o 10µs Receiver Input Deglitching (MAX3175 Only) o TUV-Certified NET1/NET2 and TBR1/TBR2 Compliant MXL1544/MAX3175 The MXL1544/MAX3175 are four-driver/four-receiver multiprotocol transceivers that operate from a single +5V supply in conjunction with the MXL1543. The MXL1544/MAX3175, along with the MXL1543 and MXL1344A, form a complete software-selectable data terminal equipment (DTE) or data communication equipment (DCE) interface port that supports the V.28 (RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA-530A, X.21, RS-423), and V.35 protocols. The MXL1544/ MAX3175 transceivers carry serial interface control signaling, while the MXL1543 carries the high-speed clock and data signals. Typically, the MXL1543 is terminated using the MXL1344A. The MAX3175 is identical to the MXL1544 except for the addition of a 10µs (typ) glitch rejection circuit at the receiver inputs. The MXL1544/ MAX3175 are available in 28-pin SSOP packages. Applications Data Networking CSU and DSU Data Router...