LT1330

LT1330 5V RS232 Transceiver with 3V Logic Interface and One Receiver Active in Shutdown FEATURES s s s s DESCRIPTIO s s s s s s s s s s 3V Logic Interface ESD Protection over ±10kV Uses Small Capacitors: 0.1µF, 0.2µF, 1.0µF One Low Power Receiver Remains Active While in Shutdown Pin Compatible with LT1137A and LT1237 120kBaud Operation for RL = 3k, CL = 2500pF 250kBaud Operation for RL = 3k, CL = 1000pF CMOS Comparable Low Power: 30mW Easy PC Layout—Flowthrough Architecture Rugged Bipolar Design Outputs Assume a High Impedance State When Off or Powered Down Absolutely No Latchup 60µA Supply Current in Shutdown Available in SO and SSOP Packages The LT®1330 is a three driver, five receiver RS232 transceiver with low supply current. Designed to interface with new 3V logic, the LT1330 operates with both a 5V power supply and a 3V logic power supply. The chip may be shut down to micropower operation with one receiver remaining active to monitor RS232 inputs such as ring detect from a modem. The LT1330 is fully compliant with all EIA RS232 specifications. Additionally, the RS232 line input and output pins are resilient to multiple ±10kV ESD strikes. This eliminates the need for costly TransZorbs® on line pins for the RS232 part. The LT1330 operates to 120kbaud even driving high capacitive loads. During shutdown, driver and receiver outputs are at a high impedance state allowing devices to be paralleled. , LTC and LT are registered trademarks of Linear Technology Corporation. T...