LTC1322IN

IC TXRX RS232/RS485/EIA562 24DIP

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