DESCRIPTION
The LTC1321/LTC1322/LTC1335 are low power CMOS bidirectional transceivers, each featuring tworeconfigurable interface ports. Each can be configured as two RS485 differential ports, as two single-ended ports, or as one RS485 differential port and one single-ended port.

FEATURE
■ LTC1321: 2-EIA562/RS232 Transceivers/2-RS485 Transceivers
■ LTC1322: 4-EIA562/RS232 Transceivers/2-RS485 Transceivers
■ LTC1335: 4-EIA562 Transceivers/2-RS485 Transceivers with OE
■ LTC1321/LTC1322 Have the Same Pinout as SP301/SP302
■ LTC1335 Features Receiver Three-State Outputs
■ Low Supply Current: 1mA Typical
■ 15µA Supply Current in Shutdown
■ 120kBaud in EIA/TIA-562 or RS232 Mode
■ 10MBaud in RS485/RS422 Mode
■ Self-Testing Capability in Loopback Mode
■ Power-Up/Down Glitch-Free Outputs
■ Driver Maintains High Impedance in Three-State, Shutdown or With Power Off
■ Thermal Shutdown Protection
■ I/O Lines Can Withstand ±25V
■ Withstands Repeated 10kV ESD Pulses

APPLICATIONS
■ Low Power RS485/RS422/EIA562/RS232 Interface
■ Cable Repeater
■ Level Translator