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74AHC245BQ,115

74AHC245BQ,115

Product Overview

Category

The 74AHC245BQ,115 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for level shifting and voltage translation applications.

Characteristics

  • High-speed CMOS technology
  • Wide operating voltage range: 2 V to 5.5 V
  • 8-bit bidirectional voltage-level translator
  • Non-inverting outputs
  • Schmitt-trigger action on all inputs
  • Low power consumption
  • ESD protection: HBM JESD22-A114E exceeds 2000 V

Package

The 74AHC245BQ,115 is available in a standard SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide bidirectional voltage-level translation between different logic levels.

Packaging/Quantity

The 74AHC245BQ,115 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage Range: 2 V to 5.5 V
  • Input Voltage Range: GND to VCC
  • Output Voltage Range: GND to VCC
  • Operating Temperature Range: -40°C to +125°C
  • Input Capacitance: 3.5 pF
  • Output Capacitance: 6 pF
  • Propagation Delay: 7 ns (max)
  • Output Current: ±8 mA

Detailed Pin Configuration

The 74AHC245BQ,115 has a total of 20 pins, which are assigned as follows:

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

Functional Features

  • Bidirectional voltage-level translation between different logic levels
  • Non-inverting outputs for direct compatibility with various systems
  • Schmitt-trigger action on all inputs for improved noise immunity
  • Output enable input for easy control of the direction and flow of data

Advantages and Disadvantages

Advantages

  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • ESD protection for enhanced reliability
  • Easy to use and integrate into existing systems

Disadvantages

  • Limited output current capacity
  • Requires careful consideration of voltage level compatibility

Working Principles

The 74AHC245BQ,115 operates by receiving data inputs from one set of pins and translating them to a different logic level on another set of pins. The direction of data flow is controlled by the DIR pin, while the OE pin enables or disables the outputs. The IC utilizes CMOS technology and incorporates Schmitt-trigger action on all inputs for improved noise immunity.

Detailed Application Field Plans

The 74AHC245BQ,115 finds applications in various fields, including:

  1. Microcontroller interfacing
  2. Level shifting in mixed voltage systems
  3. Data communication between different logic families
  4. Signal buffering and isolation

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the 74AHC245BQ,115 include:

  1. SN74LVC245A - Texas Instruments
  2. CD74HCT245 - Texas Instruments
  3. MC74VHC245 - ON Semiconductor
  4. 74LVCH245A - Nexperia
  5. TC74VHC245FT - Toshiba

These alternative models offer comparable features and can be considered as substitutes based on specific requirements.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan 74AHC245BQ,115 dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of 74AHC245BQ,115 in technical solutions:

  1. Q: What is the function of the 74AHC245BQ,115? A: The 74AHC245BQ,115 is an octal bus transceiver that can be used to enable bidirectional level shifting between two voltage domains.

  2. Q: What is the operating voltage range of the 74AHC245BQ,115? A: The 74AHC245BQ,115 operates within a voltage range of 2 V to 5.5 V.

  3. Q: Can the 74AHC245BQ,115 handle high-speed data transmission? A: Yes, the 74AHC245BQ,115 is designed for high-speed operation and can handle data rates up to several hundred megahertz.

  4. Q: How many bidirectional channels does the 74AHC245BQ,115 have? A: The 74AHC245BQ,115 has 8 bidirectional channels, allowing for parallel data transfer.

  5. Q: Is the 74AHC245BQ,115 compatible with both TTL and CMOS logic levels? A: Yes, the 74AHC245BQ,115 is compatible with both TTL and CMOS logic levels, making it versatile for various applications.

  6. Q: Can the 74AHC245BQ,115 be used as a level shifter between different voltage domains? A: Yes, the 74AHC245BQ,115 is commonly used as a level shifter to enable communication between devices operating at different voltage levels.

  7. Q: Does the 74AHC245BQ,115 have any built-in protection features? A: Yes, the 74AHC245BQ,115 has built-in diode clamps that provide protection against electrostatic discharge (ESD) events.

  8. Q: What is the maximum output current of the 74AHC245BQ,115? A: The 74AHC245BQ,115 can source or sink up to 24 mA of current per channel.

  9. Q: Can the 74AHC245BQ,115 be used in both digital and analog applications? A: The 74AHC245BQ,115 is primarily designed for digital applications, but it can also be used in certain analog scenarios.

  10. Q: Are there any specific layout considerations when using the 74AHC245BQ,115? A: Yes, it is recommended to follow proper PCB layout guidelines, such as minimizing trace lengths and providing adequate decoupling capacitors, to ensure optimal performance of the 74AHC245BQ,115.

Please note that these answers are general and may vary depending on the specific requirements and use cases.