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SN74HCT245N
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SN74HCT245N

Product Overview

Category

SN74HCT245N belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a bidirectional octal bus transceiver.

Characteristics

  • High-speed CMOS technology
  • 8-bit wide input/output port
  • Voltage level translation
  • Non-inverting outputs
  • Schmitt-trigger action on all inputs
  • Low power consumption
  • Wide operating voltage range

Package

SN74HCT245N is available in a standard DIP (Dual In-line Package) format.

Essence

The essence of SN74HCT245N lies in its ability to facilitate bidirectional data transfer between two buses with different voltage levels.

Packaging/Quantity

SN74HCT245N is typically packaged in tubes or reels, with quantities varying depending on the supplier.

Specifications

  • Supply voltage: 4.5V to 5.5V
  • Input voltage: 0V to VCC
  • Output voltage: 0V to VCC
  • Operating temperature range: -40°C to 85°C
  • Input capacitance: 3.5pF
  • Output capacitance: 6pF
  • Propagation delay time: 15ns (max)
  • Output current: ±6mA

Detailed Pin Configuration

  1. OE (Output Enable)
  2. A1 (Input/Output)
  3. B1 (Input/Output)
  4. A2 (Input/Output)
  5. B2 (Input/Output)
  6. A3 (Input/Output)
  7. B3 (Input/Output)
  8. A4 (Input/Output)
  9. B4 (Input/Output)
  10. GND (Ground)
  11. B5 (Input/Output)
  12. A5 (Input/Output)
  13. B6 (Input/Output)
  14. A6 (Input/Output)
  15. B7 (Input/Output)
  16. A7 (Input/Output)
  17. VCC (Supply Voltage)
  18. DIR (Direction Control)

Functional Features

  • Bidirectional data transfer
  • Voltage level translation
  • Non-inverting outputs
  • Schmitt-trigger action for noise immunity
  • Output enable control for bus isolation
  • Direction control for selecting the direction of data flow

Advantages and Disadvantages

Advantages

  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • Noise immunity due to Schmitt-trigger action
  • Easy integration into various digital systems

Disadvantages

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

Working Principles

SN74HCT245N operates by receiving input data from one bus and transmitting it to another bidirectionally. The direction of data flow is controlled by the DIR pin. The voltage level translation feature allows compatibility between buses with different voltage levels.

Detailed Application Field Plans

SN74HCT245N finds applications in various fields, including: 1. Microcontroller interfacing 2. Data communication systems 3. Industrial automation 4. Robotics 5. Automotive electronics 6. Consumer electronics 7. Telecommunications

Detailed and Complete Alternative Models

Some alternative models that serve similar functions to SN74HCT245N are: 1. 74HC245 2. CD74HCT245E 3. MC74HCT245AN 4. SN74HCT245D 5. TC74HCT245AF

These alternatives can be considered based on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74HCT245N v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74HCT245N:

  1. Q: What is SN74HCT245N? A: SN74HCT245N is a type of integrated circuit (IC) commonly used as a bidirectional level shifter or voltage translator.

  2. Q: What is the purpose of using SN74HCT245N in technical solutions? A: SN74HCT245N is used to convert logic levels between different voltage domains, allowing communication between devices operating at different voltage levels.

  3. Q: What voltage levels can SN74HCT245N handle? A: SN74HCT245N can handle voltage levels ranging from 2V to 6V.

  4. Q: How many bidirectional channels does SN74HCT245N have? A: SN74HCT245N has 8 bidirectional channels, allowing for simultaneous translation of up to 8 signals.

  5. Q: Can SN74HCT245N be used with both CMOS and TTL logic families? A: Yes, SN74HCT245N is compatible with both CMOS and TTL logic families.

  6. Q: What is the maximum data transfer rate supported by SN74HCT245N? A: SN74HCT245N supports data transfer rates up to 25 MHz.

  7. Q: Does SN74HCT245N require external pull-up or pull-down resistors? A: No, SN74HCT245N has built-in input/output resistors, eliminating the need for external pull-up or pull-down resistors.

  8. Q: Can SN74HCT245N be used in bi-directional communication systems? A: Yes, SN74HCT245N is designed for bidirectional data transfer, making it suitable for bi-directional communication systems.

  9. Q: What is the power supply voltage range for SN74HCT245N? A: SN74HCT245N operates with a power supply voltage range of 4.5V to 5.5V.

  10. Q: Can SN74HCT245N be used in high-speed applications? A: While SN74HCT245N supports relatively high data transfer rates, it may not be suitable for extremely high-speed applications due to its propagation delay characteristics.