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SN74HC245DWRG4
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SN74HC245DWRG4

Product Overview

Category

SN74HC245DWRG4 belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a bidirectional octal bus transceiver.

Characteristics

  • High-speed CMOS technology
  • Wide operating voltage range: 2V to 6V
  • Low power consumption
  • Schmitt-trigger inputs for noise immunity
  • ESD protection exceeds JESD 22

Package

SN74HC245DWRG4 is available in a surface mount package called SOIC (Small Outline Integrated Circuit).

Essence

The essence of SN74HC245DWRG4 lies in its ability to provide bidirectional communication between two buses with different voltage levels.

Packaging/Quantity

SN74HC245DWRG4 is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 10 ns (max)
  • Output Current: ±6 mA

Detailed Pin Configuration

  1. A1 - Bus A, Data Input/Output 1
  2. A2 - Bus A, Data Input/Output 2
  3. A3 - Bus A, Data Input/Output 3
  4. A4 - Bus A, Data Input/Output 4
  5. A5 - Bus A, Data Input/Output 5
  6. A6 - Bus A, Data Input/Output 6
  7. A7 - Bus A, Data Input/Output 7
  8. A8 - Bus A, Data Input/Output 8
  9. GND - Ground
  10. B1 - Bus B, Data Input/Output 1
  11. B2 - Bus B, Data Input/Output 2
  12. B3 - Bus B, Data Input/Output 3
  13. B4 - Bus B, Data Input/Output 4
  14. B5 - Bus B, Data Input/Output 5
  15. B6 - Bus B, Data Input/Output 6
  16. B7 - Bus B, Data Input/Output 7
  17. B8 - Bus B, Data Input/Output 8
  18. OE - Output Enable/Input
  19. DIR - Direction Control/Input
  20. VCC - Supply Voltage

Functional Features

  • Bidirectional data transfer between two buses
  • Direction control for selecting the direction of data flow
  • Output enable control for enabling/disabling the outputs
  • Schmitt-trigger inputs for improved noise immunity
  • High-speed operation for efficient data transfer

Advantages and Disadvantages

Advantages

  • Wide operating voltage range allows compatibility with various systems
  • Low power consumption for energy-efficient applications
  • ESD protection ensures reliability in harsh environments
  • Schmitt-trigger inputs provide noise immunity

Disadvantages

  • Limited output current may restrict usage in high-current applications
  • Propagation delay time may affect real-time data transfer in certain scenarios

Working Principles

SN74HC245DWRG4 operates by receiving data from one bus (A) and transmitting it to another bus (B), or vice versa. The direction of data flow is controlled by the DIR pin. When DIR is set to a specific logic level, the data flows from the corresponding bus to the other. The OE pin enables or disables the outputs. When OE is low, the outputs are enabled, allowing data transmission. Conversely, when OE is high, the outputs are disabled.

Detailed Application Field Plans

SN74HC245DWRG4 finds applications in various fields, including: 1. Microcontroller interfacing 2. Data communication systems 3. Industrial automation 4. Automotive electronics 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to SN74HC245DWRG4 include: - SN74HCT245DW - SN74LVC245ADW - SN74LVCH245ADBR - SN74AHC245PW

These alternatives offer similar functionality and can be used as replacements based on specific requirements.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق SN74HC245DWRG4 في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of SN74HC245DWRG4:

  1. Q: What is SN74HC245DWRG4? A: SN74HC245DWRG4 is a high-speed octal bus transceiver with 3-state outputs, commonly used in digital systems.

  2. Q: What is the voltage supply range for SN74HC245DWRG4? A: The voltage supply range for SN74HC245DWRG4 is typically between 2V and 6V.

  3. Q: What is the maximum data transfer rate supported by SN74HC245DWRG4? A: SN74HC245DWRG4 supports a maximum data transfer rate of 80 Mbps.

  4. Q: Can SN74HC245DWRG4 be used for level shifting between different voltage domains? A: Yes, SN74HC245DWRG4 can be used for level shifting between different voltage domains as it supports bidirectional data flow.

  5. Q: How many input/output pins does SN74HC245DWRG4 have? A: SN74HC245DWRG4 has 8 input pins (A1-A8) and 8 output pins (B1-B8).

  6. Q: What is the purpose of the OE (Output Enable) pin in SN74HC245DWRG4? A: The OE pin is used to enable or disable the outputs of SN74HC245DWRG4. When OE is low, the outputs are enabled, and when OE is high, the outputs are disabled.

  7. Q: Can SN74HC245DWRG4 be used for bi-directional communication between microcontrollers? A: Yes, SN74HC245DWRG4 can be used for bi-directional communication between microcontrollers as it supports bidirectional data flow.

  8. Q: What is the maximum output current that SN74HC245DWRG4 can drive? A: SN74HC245DWRG4 can drive a maximum output current of 6 mA.

  9. Q: Is SN74HC245DWRG4 compatible with TTL (Transistor-Transistor Logic) inputs? A: Yes, SN74HC245DWRG4 is compatible with TTL inputs, making it suitable for interfacing with TTL logic devices.

  10. Q: Can SN74HC245DWRG4 be used in automotive applications? A: Yes, SN74HC245DWRG4 is qualified for automotive applications and can operate within the specified temperature range and voltage supply range.

Please note that these answers are general and may vary depending on the specific requirements and datasheet of SN74HC245DWRG4.