DESCRIPTION
The LT®1342 is an advanced low power three-driver, five-receiver RS232 transceiver. The LT1342 operates from a 5V supply and a 3V logic supply. Receiver outputs can interface directly to 3V logic circuits. Included on the chip is a shutdown pin for reducing supply current to near zero. All receivers and drivers assume high impedance states during shutdown.

FEATURES
■ ESD Protection Over ±10kV
■ 3V Logic Interface
■ Uses Small Capacitors: 0.1µF, 0.2µF
■ 1µA Supply Current in Shutdown
■ Low Power Driver Disable Operating Mode
■ Pin Compatible with LT1137A
■ 120kBaud Operation for RL = 3k, CL = 2500pF
■ 250kBaud Operation for RL = 3k, CL = 1000pF
■ CMOS Comparable Low Power: 60mW
■ Operates from a 5V Supply and 3V Logic Supply
■ Easy PC Layout: Flowthrough Architecture
■ Rugged Bipolar Design
■ Outputs Assume a High Impedance State When Off or Powered Down
■ Absolutely No Latchup

APPLICATIONS
■ Notebook Computers
■ Palmtop Computers