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HomeProductsIntegrated Circuits (ICs)Logic - Buffers, Drivers, Receivers, TransceiversSN74LS640N
SN74LS640N Image
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SN74LS640N - Texas Instruments

Manufacturer Part Number
SN74LS640N
Manufacturer
Texas Instruments
Allelco Part Number
32D-SN74LS640N
ECAD Model
Parts Description
IC TXRX INVERT 5.25V 20DIP
Detailed Description
Package
20-DIP (0.300", 7.62mm)
Data sheet
SN54LS640-42/644-45, SN74LS640-42/644-45.pdf
SN54LS640-42/644-45, SN74LS640-42/644-45.pdf
RoHs Status
ROHS3 Compliant
In stock: 35005

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Quantity

Specifications

SN74LS640N Tech Specifications
Texas Instruments - SN74LS640N technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN74LS640N

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Supply 4.75V ~ 5.25V  
Supplier Device Package 20-PDIP  
Series 74LS  
Package / Case 20-DIP (0.300", 7.62mm)  
Package Tube  
Output Type 3-State  
Operating Temperature 0°C ~ 70°C (TA)  
Product Attribute Attribute Value  
Number of Elements 1  
Number of Bits per Element 8  
Mounting Type Through Hole  
Logic Type Transceiver, Inverting  
Input Type -  
Current - Output High, Low 15mA, 24mA  
Base Product Number 74LS640  

Parts Introduction

Manufacturer Part Number

SN74LS640N

Manufacturer

Texas Instruments

Introduction

High-performance inverting transceiver from Texas Instruments' 74LS series.

Product Features and Performance

8-bit bidirectional data flow

Inverting logic interface

High-current output capability (15mA, 24mA)

Compatible with 5V power supply systems

Product Advantages

Robust TTL logic family operation

High noise immunity

Low power consumption compared to other logic families

Key Technical Parameters

Logic Type: Transceiver, Inverting

Number of Elements: 1

Number of Bits per Element: 8

Output Type: 3-State

Current - Output High, Low: 15mA, 24mA

Voltage - Supply: 4.75V ~ 5.25V

Operating Temperature: 0°C ~ 70°C

Quality and Safety Features

Reliable TTL technology

Standard operating temperature range ensures stability

Compatibility

Compatible with multiple TTL families

Mounting Type: Through Hole

Package / Case: 20-DIP

Application Areas

Digital signal processing

Data communication

Microprocessor interfacing

Industrial control systems

Product Lifecycle

Product Status: Active

Not currently nearing discontinuation

Replacements or upgrades typically available as part of the 74LS series

Several Key Reasons to Choose This Product

Proven Texas Instruments quality and reliability

Useful for interfacing and data conversion applications

Easy to integrate with standard through-hole mounting

Outputs can drive up to 10 LS-TTL loads

Available in the ubiquitous DIP package for prototyping and production

Industry-standard device ensures easy sourcing and replacement

Ample supply voltage headroom for stable operation

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments SN74LS640N

Product Attribute SN74LS640N SN74LS642-1N SN74LS642DW SN74LS641NSR
Part Number SN74LS640N SN74LS642-1N SN74LS642DW SN74LS641NSR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Mounting Type Through Hole Through Hole Surface Mount Surface Mount
Series 74LS 74LS 74LS 74LS
Base Product Number 74LS640 74LS642 74LS642 74LS641
Package Tube Tube Tube Tape & Reel (TR)
Number of Bits per Element 8 8 8 8
Supplier Device Package 20-PDIP 20-PDIP 20-SOIC 20-SO
Input Type - - - -
Output Type 3-State Open Collector Open Collector Open Collector
Package / Case 20-DIP (0.300", 7.62mm) 20-DIP (0.300', 7.62mm) 20-SOIC (0.295", 7.50mm Width) 20-SOIC (0.209", 5.30mm Width)
Current - Output High, Low 15mA, 24mA -, 48mA -, 24mA -, 24mA
Logic Type Transceiver, Inverting Transceiver, Inverting Transceiver, Inverting Transceiver, Non-Inverting
Voltage - Supply 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V
Number of Elements 1 1 1 1

SN74LS640N Datasheet PDF

Download SN74LS640N pdf datasheets and Texas Instruments documentation for SN74LS640N - Texas Instruments.

Datasheets
SN54LS640-42/644-45, SN74LS640-42/644-45.pdf
PCN Design/Specification
Material Set 30/Mar/2017.pdf Copper Wire Base Alternative 23/Apr/2014.pdf
HTML Datasheet
SN54LS640-42/644-45, SN74LS640-42/644-45.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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SN74LS640N Image

SN74LS640N

Texas Instruments
32D-SN74LS640N

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