LTC1334
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LTC1334

Single 5V RS232/RS485 Multiprotocol Transceiver

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Part Models 10
1ku List Price Starting From $8.00
Features
  • Four RS232 Transceivers or Two RS485 Transceivers on One Chip
  • Operates from a Single 5V Supply
  • Withstands Repeated ±10kV ESD Pulses
  • Uses Small Charge Pump Capacitors: 0.1µF
  • Low Supply Current: 8mA Typical
  • 10µA Supply Current in Shutdown
  • 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
  • Receiver Inputs Can Withstand ±25V
Additional Details
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The LTC1334 is a low power CMOS bidirectional transceiver featuring two reconfigurable interface ports. It can be configured as two RS485 differential ports, as two dual RS232 single-ended ports or as one RS485 differential port and one dual RS232 single-ended port. An onboard charge pump requires four 0.1µF capacitors to generate boosted positive and negative supplies, allowing the RS232 drivers to meet the RS232 ±5V output swing requirement with only a single 5V supply. A shutdown mode reduces the ICC supply current to 10µA.

The RS232 transceivers are in full compliance with RS232 specifications. The RS485 transceivers are in full compliance with RS485 and RS422 specifications. All interface drivers feature short-circuit and thermal shutdown protection. An enable pin allows RS485 driver outputs to be forced into high impedance, which is maintained even when the outputs are forced beyond supply rails or power is off. Both driver outputs and receiver inputs feature ±10kV ESD protection. A loopback mode allows the driver outputs to be connected back to the receiver inputs for diagnostic self-test.

Applications

  • Low Power RS485/RS422/RS232/EIA562 Interface
  • Software-Selectable Multiprotocol Interface Port
  • Cable Repeaters
  • Level Translators
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Part Models 10
1ku List Price Starting From $8.00
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LTC1334

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Data Sheet

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UPDATED 08/30/2007
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LTC1334: Single 5V RS232/RS485 Multiprotocol Transceiver Data Sheet

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UPDATED 05/24/2005
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LTC1334: 単一5V RS232/RS485 マルチプロトコル・トランシーバ データシート

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UPDATED 03/23/2018
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Documentation

Product Selector Card 1

Multiprotocol Transceivers

Product Selection Guide 1

Digital Isolation and Interface Technology Selection Guide

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2020-10-28

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Protect your Innovations: from High Precision to High Power

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC1334CG#PBF 28-Lead SSOP external-link
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LTC1334CG#TRPBF 28-Lead SSOP external-link
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LTC1334CNW#PBF 28-Lead PDIP (Wide 0.6 Inch) external-link
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LTC1334CSW#PBF 28-Lead SOIC (Wide 0.3 Inch) external-link
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LTC1334CSW#TRPBF 28-Lead SOIC (Wide 0.3 Inch) external-link
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LTC1334IG#PBF 28-Lead SSOP external-link
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LTC1334IG#TRPBF 28-Lead SSOP external-link
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LTC1334INW#PBF 28-Lead PDIP (Wide 0.6 Inch) external-link
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LTC1334ISW#PBF 28-Lead SOIC (Wide 0.3 Inch) external-link
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Aug 6, 2022

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Laser Top Mark Conversion for SSOP Packages Assembled in PNG

LTC1334CG#PBF

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LTC1334CG#TRPBF

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Mar 7, 2019

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Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek

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Aug 10, 2022

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Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LTC1334CSW#PBF

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LTC1334CSW#TRPBF

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LTC1334ISW#PBF

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LTC1334ISW#TRPBF

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Delta Qualification Matrix

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PCN

Aug 6, 2022

- 22_0171

arrow down

Laser Top Mark Conversion for SSOP Packages Assembled in PNG

LTC1334CG#PBF

PRODUCTION

LTC1334CG#TRPBF

PRODUCTION

LTC1334IG#PBF

PRODUCTION

LTC1334IG#TRPBF

PRODUCTION

pdf

PCN22_0171_Form

external-icon

xls

Material_Report

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xlsm

Delta Qualification Matrix

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Mar 7, 2019

- 19_0046

arrow down

Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek

LTC1334CNW#PBF

PRODUCTION

LTC1334INW#PBF

PRODUCTION

pdf

PCN19_0046_Form

external-icon

xls

Material_Report

Download
Detailed Change Description

pdf

Qualification Results Summary

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Aug 10, 2022

- 22_0176

arrow down

Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL

LTC1334CSW#PBF

PRODUCTION

LTC1334CSW#TRPBF

PRODUCTION

LTC1334ISW#PBF

PRODUCTION

LTC1334ISW#TRPBF

PRODUCTION

pdf

PCN22_0176_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

Software & Part Ecosystem

Parts Product Life Cycle Description

Multiprotocol Transceivers1
LTC2872
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PRODUCTION

RS232/RS485 Dual Multiprotocol Transceiver with Integrated Termination

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