LTC1318 Datasheet PDF - Linear Technology

DESCRIPTION
The LTC®1318 is a single 5V, RS232/RS422 transceiver for connection to the DCE, or peripheral side of an interface link. It includes an on-board charge pump to generate a ±8V supply which allows true RS232 output swings. The charge pump requires only four external 0.1µF capacitors. The LTC1318 includes two RS232 drivers, a differential RS422 driver, a dedicated RS232 receiver, and a pin selectable RS232/RS422 receiver which can receive either single-ended or differential signals.

FEATURES
â–  Single Chip Provides DCE RS232 or
   RS422/AppleTalk DCE Port
â–  Operates from a Single 5V Supply
■ Charge Pump Uses 0.1µF Capacitors
â–  Output Common-Mode Voltage Range Exceeds
   Power Supply Rails for All Drivers
â–  Driver Outputs Are High Impedance with Power Off
â–  Pin Selectable RS232/RS422 Receiver
â–  Thermal Shutdown Protection
â–  Drivers Are Short-Circuit Protected

APPLICATIONS
â–  Dual-Mode RS232/RS422 Peripherals
â–  AppleTalk Peripherals
â–  Single 5V Systems