LT1331CNW

Series: -
Type: Transceiver
Protocol: RS232
Number of Drivers/Receivers: 3/5
Mounting Type: Through Hole
Packaging: Tube
Manufacturer: Linear Technology
Package / Case: 28-DIP (0.600", 15.24mm)
Supplier Device Package: 28-PDIP
Voltage - Supply: 3.3 V, 5V


Features:

RS232 Compatible 3V Operation
3V Logic Interface
ESD Protection Over ±10kV
120kbaud Operation for RL = 3k, CL = 2500pF
250kbaud Operation for RL = 3k, CL = 1000pF
One Low Power Receiver Remains Active While n Shutdown
60mA Supply Current in Shutdown
Low Power Driver Disable Mode
Uses Small Capacitors: 0.1mF, 0.2mF
CMOS Comparable Low Power: 60mW
Easy PC Layout: Flowthrough Architecture
Rugged Bipolar Design
Outputs Assume a High Impedance State When Off or Powered Down

Application

Notebook Computers
 Palmtop Computers


Pinout




Specifications

Supply Voltage (VCC) ................................................ 6V
Supply Voltage (VL) .................................................. 6V
V+ ........................................................................ 13.2V
V ...................................................................... 13.2V
Input Voltage
Driver ........................................................... V+ to V
Receiver ................................................ 30V to  30V
ON/OFF ......................................  0.3V to VCC + 0.3V
DRIVER DISABLE ......................  0.3V to VCC + 0.3V
Output Voltage
Driver ...................................................  30V to 30V
Receiver ......................................  0.3V to VL + 0.3V
Short Circuit Duration
V+ ................................................................... 30 sec
V ................................................................... 30 sec
Driver Output .............................................. Indefinite
Receiver Output .......................................... Indefinite
Operating Temperature Range ............. 0°C to 70°C
Storage Temperature Range ........  65°C to 150°C
Lead Temperature (Soldering, 10 sec)............. 300°C


Description

The LT®1331 is a 3-driver, 5-receiver RS232 transceiver designed for 3V and mixed 3V/5V systems. Receivers operate from 3V logic supply VL, while the onboard charge pump and drivers operate from 5V or 3V supply VCC. The transceiver has two shutdown modes. One mode disables the drivers and the charge pump, the other shuts down all circuitry except for one low power receiver which can be used for ring detection. The VCC supply may be shut down while in ring detection mode. While shut down, the drivers and receivers assume high impedance output states. 

The LT1331 is fully compliant with all EIA-RS232 specifications when VCC = 5V. If VCC = 3V, output drive levels are compatible with all known interface circuits. Special bipolar construction techniques protect the drivers and receivers beyond the fault conditions stipulated for RS232. 

The RS232 I/O pins are resilient to multiple ±10kV ESD strikes. An advanced driver output stage operates up to 120kbaud while driving heavy capacitive loads.



Parameters: 

Technical/Catalog Information
LT1331CNW
Vendor
Linear Technology
Category
Integrated Circuits (ICs) 
  
Number of Drivers/Receivers
3/5
Type
Transceiver
Voltage - Supply
5V
Package / Case
28-DIP (600 mil) 
Packaging
Tube
Protocol
RS232
Drawing Number
161; 05-08-1520; NW; 28
  
Lead Free Status
Contains Lead
  
RoHS Status
RoHS Non-Compliant
 
  
Other Names
  
            LT1331CNW
      LT1331CNW