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SN75ALS181NSR The Texas Instruments SN75ALS181NSR is a full-duplex transceiver designed for RS485 and RS422 communication protocols. It operates at speeds up to 25 Mbps.
Mfr Part #:

SN75ALS181NSR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments SN75ALS181NSR is a full-duplex transceiver designed for RS485 and RS422 communication protocols. It operates at speeds up to 25 Mbps.
Total Stock: 19,053 pcs
$ Price Range: $1.44

SN75ALS181NSR Available from 3 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
8,000 pcs
8000 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
7,953 pcs
7953 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3,100 pcs
3100 pcs On Request 1 On Request On Request 08+/10+ On Request On Request

SN75ALS181NSR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Common-Mode Range
Driver Output Current
Duplex
Fault Protection
Isolated
Lead Spacing
Mounting Type
Number of Drivers
Number of Nodes
Number of Receivers
Number of Transmitters
Operating Temperature
Protocol
Receiver Hysteresis
Receiver Input Impedance
Receiver Input Sensitivity
Signaling Rate
Skew
Supplier Device Package
Supplier Package
Supply Current
Type
Voltage

SN75ALS181NSR Description

Short technical summary and product information.

The SN75ALS181NSR from Texas Instruments is a high-speed transceiver IC supporting both RS422 and RS485 serial communication standards. This device is built with advanced low-power Schottky circuitry, enabling operation at a maximum signaling rate of 25 Mbps. It features a full-duplex design, meaning it can transmit and receive data simultaneously.

 

Key electrical characteristics include a wide common-mode voltage range of -7V to 12V and a fault protection range of -10V to 15V. The transceiver operates from a single 5V supply (4.75V to 5.25V) and has a low supply current requirement of 30 mA maximum. It supports up to 32 nodes on the bus and offers individual driver and receiver I/O pins.

 

Designed for reliability, the SN75ALS181NSR includes thermal shutdown protection and driver positive/negative current limiting. It also features glitch-free power-up and power-down protection. The receiver input impedance is a minimum of 12 kΩ, with a sensitivity of ±200 mV and typical hysteresis of 60 mV.

 

This transceiver is available in a 14-SOIC surface mount package, measuring 5.30mm in width. It operates within a temperature range of 0°C to 70°C, making it suitable for various industrial and commercial applications requiring robust serial data communication.

SN75ALS181NSR Quick Information

Product Type: Transceiver
Canonical Name: SN75ALS181NSR Differential Driver and Receiver Pair
Subcategory: RS485 & RS422 Transceivers

SN75ALS181NSR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SN75ALS181NSR Estimated Pricing

Qty Low High
1+ $1.44 $1.44

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN75ALS181NSR Features

  • Full-duplex RS485/RS422 transceiver.
  • Supports 25 Mbps signaling rate.
  • Operates from a single 5V supply.
  • Wide common-mode and fault protection ranges.
  • Surface mount 14-SOIC package.

SN75ALS181NSR Applications

  • Ideal for industrial communication systems.
  • Used in point-to-point data links.
  • Suitable for multi-drop bus networks.
  • Enables robust serial data transmission.

SN75ALS181NSR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the SN75ALS181NSR?

The SN75ALS181NSR operates from a 4.75V to 5.25V supply.

What package type is the SN75ALS181NSR available in?

The SN75ALS181NSR is available in a 14-SOIC (0.209", 5.30mm Width) surface mount package.

What is the operating temperature range of the SN75ALS181NSR?

The operating temperature range for the SN75ALS181NSR is 0°C to 70°C.

What communication protocols does the SN75ALS181NSR support?

The SN75ALS181NSR supports RS422 and RS485 protocols.

What is the maximum signaling rate of the SN75ALS181NSR?

The maximum signaling rate for the SN75ALS181NSR is 25 Mbps.

How many nodes can be connected to the SN75ALS181NSR bus?

The SN75ALS181NSR supports up to 32 nodes on the bus.

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