SN75ALS181NS
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Texas Instruments SN75ALS181NS

Manufacturer No:
SN75ALS181NS
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC TRANSCEIVER FULL 1/1 14SO
Delivery:
Payment:
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Product Introduction

Overview

The SN75ALS181NS is a differential driver and receiver integrated circuit designed by Texas Instruments for bidirectional data communication on multipoint bus transmission lines. This component meets the standards of TIA/EIA-422-B, TIA/EIA-485-A, and CCITT recommendations V.11 and X.27. It operates from a single 5V power supply and is characterized for operation from 0°C to 70°C. The SN75ALS181NS combines a 3-state differential line driver and a differential-input line receiver, making it suitable for balanced transmission lines in noisy environments.

Key Specifications

Parameter Test Conditions Min Max Unit
Supply Voltage 4.75 5 5.25 V
Operating Temperature 0 70 °C
Driver Output Current ±60 mA
Driver Common-Mode Output Voltage Range -7 12 V
Receiver Common-Mode Input Voltage Range -12 12 V
Receiver Input Sensitivity ±200 mV
Receiver Hysteresis 60 mV
Receiver High Input Impedance 12k Ω
Package Type 14-SOIC

Key Features

  • Meets TIA/EIA-422-B, TIA/EIA-485-A, and CCITT recommendations V.11 and X.27 standards.
  • Designed for bidirectional data communication on multipoint bus transmission lines.
  • Low supply-current requirement: 30 mA maximum.
  • Driver positive-and negative-current limiting.
  • Thermal shutdown protection.
  • Driver and receiver have active-high and active-low enables.
  • Fail-safe design ensures receiver outputs are always high when inputs are open.
  • Operates from a single 5V power supply.

Applications

  • Motor Drives
  • Factory Automation
  • Building Automation
  • Multipoint bus transmission systems in noisy environments.

Q & A

  1. What are the primary standards met by the SN75ALS181NS?

    The SN75ALS181NS meets TIA/EIA-422-B, TIA/EIA-485-A, and CCITT recommendations V.11 and X.27 standards.

  2. What is the operating temperature range of the SN75ALS181NS?

    The component operates from 0°C to 70°C.

  3. What is the supply voltage range for the SN75ALS181NS?

    The supply voltage range is from 4.75V to 5.25V.

  4. What is the driver output current capacity of the SN75ALS181NS?

    The driver output current capacity is ±60 mA.

  5. What is the common-mode output voltage range of the driver?

    The driver common-mode output voltage range is from -7V to 12V.

  6. What is the input sensitivity of the receiver?

    The receiver input sensitivity is ±200 mV.

  7. What is the hysteresis of the receiver?

    The receiver hysteresis is 60 mV.

  8. Does the SN75ALS181NS have thermal shutdown protection?

    Yes, the component has thermal shutdown protection.

  9. What type of package does the SN75ALS181NS come in?

    The component comes in a 14-SOIC package.

  10. What are some common applications of the SN75ALS181NS?

    Common applications include motor drives, factory automation, and building automation.

Product Attributes

Type:Transceiver
Protocol:- 
Number of Drivers/Receivers:1/1
Duplex:Full
Receiver Hysteresis:60 mV
Data Rate:- 
Voltage - Supply:4.75V ~ 5.25V
Operating Temperature:0°C ~ 70°C (TA)
Mounting Type:Surface Mount
Package / Case:14-SOIC (0.209", 5.30mm Width)
Supplier Device Package:14-SO
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Similar Products

Part Number SN75ALS181NS SN75ALS181NSR SN75ALS181N
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Type Transceiver Transceiver Transceiver
Protocol - RS422, RS485 RS422, RS485
Number of Drivers/Receivers 1/1 1/1 1/1
Duplex Full Full Full
Receiver Hysteresis 60 mV 60 mV 60 mV
Data Rate - - -
Voltage - Supply 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C 0°C ~ 70°C
Mounting Type Surface Mount Surface Mount Through Hole
Package / Case 14-SOIC (0.209", 5.30mm Width) 14-SOIC (0.209", 5.30mm Width) 14-DIP (0.300", 7.62mm)
Supplier Device Package 14-SO 14-SO 14-PDIP

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