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HomeProductsIntegrated Circuits (ICs)Logic - Buffers, Drivers, Receivers, TransceiversSN74ALS642AN
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SN74ALS642AN - Texas Instruments

Manufacturer Part Number
SN74ALS642AN
Manufacturer
Texas Instruments
Allelco Part Number
32D-SN74ALS642AN
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
BUS TRANSCEIVER, ALS SERIES
Package
Bulk
Data sheet
1.SN74ALS642AN.pdf ...
Our certification
In stock: 21736

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Specifications

SN74ALS642AN Tech Specifications
Texas Instruments - SN74ALS642AN technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN74ALS642AN

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Series *  
Product Attribute Attribute Value  
Package Bulk  
Base Product Number 74ALS642  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Affected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

SN74ALS642AN

Manufacturer

Texas Instruments

Introduction

The SN74ALS642AN is a high-performance, low-power, 8-bit D-type transparent latch with 3-state outputs. It is designed for use in applications where high speed, low power, and high drive capability are required.

Product Features and Performance

8-bit D-type transparent latch with 3-state outputs

High-speed operation with typical propagation delays of 8 ns

Low power consumption with typical ICC of 15 mA

High drive capability with 24 mA sink/source current

Operates from a single 5 V power supply

TTL-compatible inputs and outputs

Product Advantages

Enables high-speed data transfer and storage

Provides low power consumption for energy-efficient designs

Offers high drive capability to support a wide range of applications

Simplifies circuit design with TTL-compatible interface

Key Reasons to Choose This Product

Proven performance and reliability from a trusted manufacturer

Ideal for applications requiring high-speed, low-power, and high-drive capabilities

Cost-effective solution for a variety of digital logic and interface applications

Quality and Safety Features

Manufactured using high-quality, reliable processes

Meets relevant safety and environmental standards

Compatibility

Compatible with TTL and CMOS logic families

Application Areas

Digital logic and interface applications

Data storage and transfer circuits

High-speed, low-power digital systems

Product Lifecycle

["The SN74ALS642AN is an active product, currently available from our website's sales team.","There are no direct equivalent or alternative models available from our website's sales team at this time. Please contact our website's sales team for more information on this product or to discuss potential alternatives."]

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments SN74ALS642AN

Product Attribute SN74ALS642A-1NS SN74ALS642A-IN SN74ALS642A-1NG4 SN74ALS644AN
Part Number SN74ALS642A-1NS SN74ALS642A-IN SN74ALS642A-1NG4 SN74ALS644AN
Manufacturer Texas Instruments Texas Instruments Luminary Micro / Texas Instruments Texas Instruments
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

SN74ALS642AN Datasheet PDF

Download SN74ALS642AN pdf datasheets and Texas Instruments documentation for SN74ALS642AN - Texas Instruments.

Datasheets
SN54Ax574-75, SN74Ax574-75.pdf
HTML Datasheet
SN54Ax574-75, SN74Ax574-75.pdf

Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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SN74ALS642AN

Texas Instruments
32D-SN74ALS642AN

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