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SN74LS642NSR The SN74LS642NSR is an octal bus transceiver from Texas Instruments designed for asynchronous two-way communication. It features open collector outputs and operates at 5.25V.
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SN74LS642NSR

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Mfr Name: Texas Instruments
Texas Instruments
The SN74LS642NSR is an octal bus transceiver from Texas Instruments designed for asynchronous two-way communication. It features open collector outputs and operates at 5.25V.
✓ Total Stock: 12,053 pcs
$ Price Range: $5.85

SN74LS642NSR Available from 1 distributor

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12,053 pcs
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SN74LS642NSR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
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Logic Type
Mounting Type
Number of Bits per Element
Number of Channels
Number of Elements
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SN74LS642NSR Description

Short technical summary and product information.

The Texas Instruments SN74LS642NSR is an octal bus transceiver IC designed for asynchronous two-way communication between data buses. This device operates within a voltage range of 4.75V to 5.25V and features open collector outputs with a maximum current of 24mA. It is characterized for operation from 0°C to 70°C.

 

Designed for high-speed applications, the SN74LS642NSR provides 8 channels of data transmission. The direction of data flow is controlled by the DIR input, and the device can be disabled using the enable input (G), effectively isolating the buses. The transceiver is housed in a 20-SOIC package, suitable for surface mounting.

 

This component is part of the LS (Low-power Schottky) technology family, offering a balance of speed and power consumption. Its open-collector output configuration allows for wired-AND logic and requires external pull-up resistors. The SN74LS642NSR is ideal for interfacing between different data buses in digital systems.

SN74LS642NSR Quick Information

Product Type: Octal Bus Transceiver
Series: 74LS
Canonical Name: SN74LS642 Octal Bus Transceiver with Open Collector Outputs
Subcategory: Octal Bus Transceiver

SN74LS642NSR Compliance

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

SN74LS642NSR Estimated Pricing

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1+ $5.85 $5.85

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

SN74LS642NSR Features

  • Octal bus transceiver with open collector outputs.
  • Supports asynchronous two-way data communication.
  • Operates at 4.75V to 5.25V supply voltage.
  • Surface mountable in a 20-SOIC package.
  • Wide operating temperature range of 0°C to 70°C.

SN74LS642NSR Applications

  • Ideal for data bus interfacing.
  • Suitable for digital system communication.
  • Used in asynchronous data transfer applications.
  • Facilitates wired-AND logic configurations.

SN74LS642NSR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74LS642NSR?

4.75V to 5.25V.

What is the package type of the SN74LS642NSR?

20-SOIC (0.209", 5.30mm Width) surface mount package.

What is the operating temperature range of the SN74LS642NSR?

0°C to 70°C.

How many bits does the SN74LS642NSR transceiver handle?

8 bits.

What is the propagation delay of the SN74LS642NSR?

10-50ns.

What is the output current capability of the SN74LS642NSR?

24mA per channel.

What is the output type of the SN74LS642NSR?

Open collector.

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