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HomeProductsIntegrated Circuits (ICs)Logic - Gates and InvertersSN74ALS21AN
SN74ALS21AN Image
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SN74ALS21AN - Texas Instruments

Manufacturer Part Number
SN74ALS21AN
Manufacturer
Texas Instruments
Allelco Part Number
32D-SN74ALS21AN
ECAD Model
Parts Description
IC GATE AND 2CH 4-INP 14DIP
Detailed Description
Package
14-DIP (0.300", 7.62mm)
Data sheet
SN54/74(ALS,AS)21(A).pdf
RoHs Status
ROHS3 Compliant
In stock: 66910

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Specifications

SN74ALS21AN Tech Specifications
Texas Instruments - SN74ALS21AN technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN74ALS21AN

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Supply 4.5V ~ 5.5V  
Supplier Device Package 14-PDIP  
Series 74ALS  
Package / Case 14-DIP (0.300", 7.62mm)  
Package Tube  
Operating Temperature 0°C ~ 70°C  
Number of Inputs 4  
Number of Circuits 2  
Product Attribute Attribute Value  
Mounting Type Through Hole  
Max Propagation Delay @ V, Max CL 15ns @ 5V, 50pF  
Logic Type AND Gate  
Input Logic Level - Low 0.8V  
Input Logic Level - High 2V  
Features -  
Current - Output High, Low 400µA, 8mA  
Base Product Number 74ALS21  

Parts Introduction

Manufacturer Part Number

SN74ALS21AN

Manufacturer

Texas Instruments

Introduction

The SN74ALS21AN is a dual 4-input AND gate from Texas Instruments designed for various logic combining operations within its designated voltage and temperature ranges.

Product Features and Performance

Dual 4-input AND gate configuration

Operates from a supply voltage of 4.5V to 5.5V

Capable of driving 400µA output high and 8mA output low

Propagation delay maximum of 15ns at 5V and 50pF load

Through-hole mounting type for durable connections

Product Advantages

Features a higher resistance to noise with input logic levels of low at 0.8V and high at 2V

Wide operating temperature range from 0°C to 70°C

Key Technical Parameters

Number of Circuits: 2

Voltage Supply: 4.5V to 5.5V

Current Output High, Low: 400µA, 8mA

Input Logic Level Low: 0.8V

Input Logic Level High: 2V

Propagation Delay Max: 15ns at 5V, 50pF

Operating Temperature: 0°C to 70°C

Quality and Safety Features

The product meets standard requirements for quality and reliability under conditions specified for logic devices, ensuring consistent performance.

Compatibility

Designed for compatibility with other standard logic devices following similar voltage and input logic level requirements which allow for smooth integration into a wide range of digital designs.

Application Areas

Widely applicable in digital circuits, computing systems, signal processing units, and other electronics where logical operations are required.

Product Lifecycle

Currently in Active status without any indication of discontinuation, ensuring ongoing availability and support for future applications. Replacements and upgrades remain available under the 74ALS series.

Several Key Reasons to Choose This Product

Reliable performance from a renowned manufacturer Texas Instruments

Versatile application range in both commercial and educational digital systems

Predictable and stable characteristics with specified input and output levels, and propagation delays

Readily integrates into existing circuits due to standard 14-PDIP package

Active status assures product availability and continued manufacture support

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments SN74ALS21AN

Product Attribute SN74ALS21AN SN74ALS20ANSR SN74ALS21ADR SN74ALS20AN
Part Number SN74ALS21AN SN74ALS20ANSR SN74ALS21ADR SN74ALS20AN
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Number of Inputs 4 4 4 4
Mounting Type Through Hole Surface Mount Surface Mount Through Hole
Features - - - -
Number of Circuits 2 2 2 2
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tube
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C 0°C ~ 70°C
Max Propagation Delay @ V, Max CL 15ns @ 5V, 50pF 12.5ns @ 5V, 50pF 15ns @ 5V, 50pF 12.5ns @ 5V, 50pF
Logic Type AND Gate NAND Gate AND Gate NAND Gate
Base Product Number 74ALS21 74ALS20 74ALS21 74ALS20
Package / Case 14-DIP (0.300", 7.62mm) 14-SOIC (0.209", 5.30mm Width) 14-SOIC (0.154", 3.90mm Width) 14-DIP (0.300", 7.62mm)
Input Logic Level - Low 0.8V 0.8V 0.8V 0.8V
Voltage - Supply 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V 4.5V ~ 5.5V
Input Logic Level - High 2V 2V 2V 2V
Supplier Device Package 14-PDIP 14-SO 14-SOIC 14-PDIP
Series 74ALS 74ALS 74ALS 74ALS
Current - Output High, Low 400µA, 8mA 400µA, 8mA 400µA, 8mA 400µA, 8mA

SN74ALS21AN Datasheet PDF

Download SN74ALS21AN pdf datasheets and Texas Instruments documentation for SN74ALS21AN - Texas Instruments.

PCN Design/Specification
Material Set 30/Mar/2017.pdf
HTML Datasheet
SN54/74(ALS,AS)21(A).pdf

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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SN74ALS21AN

Texas Instruments
32D-SN74ALS21AN

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