Texas Instruments
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SN74LS640NSR
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SN74LS640NSR

Product Overview

Category

SN74LS640NSR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for signal processing and data manipulation.

Characteristics

  • Low power consumption
  • High-speed operation
  • Wide operating voltage range
  • Compatibility with various logic families

Package

SN74LS640NSR is available in a small outline package (SOIC) with 20 pins.

Essence

The essence of SN74LS640NSR lies in its ability to efficiently process and manipulate signals within electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Logic family: LS
  • Number of bits: 8
  • Input/output type: Tri-state
  • Supply voltage: 4.75V to 5.25V
  • Operating temperature range: -40°C to 85°C
  • Propagation delay time: 10ns (max)
  • Output current: ±24mA

Detailed Pin Configuration

  1. A0
  2. A1
  3. A2
  4. A3
  5. A4
  6. A5
  7. A6
  8. A7
  9. OE#
  10. GND
  11. B7
  12. B6
  13. B5
  14. B4
  15. B3
  16. B2
  17. B1
  18. B0
  19. VCC
  20. Y7

Functional Features

  • 8-bit bidirectional bus interface
  • Tri-state outputs for bus sharing
  • Enable input for controlling output state
  • Compatible with TTL logic levels
  • High noise immunity

Advantages and Disadvantages

Advantages

  • Low power consumption
  • High-speed operation
  • Wide operating voltage range
  • Compatibility with various logic families
  • Tri-state outputs for bus sharing

Disadvantages

  • Limited output current capacity
  • Requires external pull-up resistors for proper operation

Working Principles

SN74LS640NSR operates based on the principles of digital logic. It receives input signals from the A0-A7 pins and processes them according to the specified logic functions. The output signals are then transmitted through the B0-B7 pins. The OE# pin controls the output state, allowing for bus sharing between multiple devices.

Detailed Application Field Plans

SN74LS640NSR finds applications in various fields, including: 1. Microprocessor systems 2. Data communication equipment 3. Industrial control systems 4. Automotive electronics 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to SN74LS640NSR are: 1. SN74LS641NSR 2. SN74LS645NSR 3. SN74LS646NSR 4. SN74LS647NSR 5. SN74LS648NSR

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74LS640NSR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74LS640NSR:

  1. Q: What is SN74LS640NSR? A: SN74LS640NSR is a type of octal bus transceiver with 3-state outputs, commonly used in digital systems.

  2. Q: What is the purpose of SN74LS640NSR? A: SN74LS640NSR is used to enable bidirectional transfer of data between two buses with different voltage levels or logic families.

  3. Q: What is the maximum operating voltage for SN74LS640NSR? A: The maximum operating voltage for SN74LS640NSR is typically 5.25V.

  4. Q: How many data lines can SN74LS640NSR handle? A: SN74LS640NSR can handle 8 data lines, as it is an octal (8-bit) bus transceiver.

  5. Q: Can SN74LS640NSR be used in both TTL and CMOS logic systems? A: Yes, SN74LS640NSR is compatible with both TTL and CMOS logic systems.

  6. Q: What is the output current capability of SN74LS640NSR? A: SN74LS640NSR has a typical output current capability of ±15mA.

  7. Q: Does SN74LS640NSR have built-in protection against electrostatic discharge (ESD)? A: Yes, SN74LS640NSR has built-in ESD protection to prevent damage from static electricity.

  8. Q: Can SN74LS640NSR be used for level shifting between different voltage domains? A: Yes, SN74LS640NSR can be used for level shifting between voltage domains, as long as the voltage levels are within its operating range.

  9. Q: What is the propagation delay of SN74LS640NSR? A: The typical propagation delay of SN74LS640NSR is around 10-15 nanoseconds.

  10. Q: Is SN74LS640NSR available in different package types? A: Yes, SN74LS640NSR is available in various package types, such as SOIC, TSSOP, and PDIP.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.