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SN74AHC245PWRG4
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SN74AHC245PWRG4

Product Overview

Category

SN74AHC245PWRG4 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
  • Low power consumption
  • Schmitt-trigger inputs for noise immunity
  • Available in TSSOP package

Package

SN74AHC245PWRG4 is packaged in a thin shrink small outline package (TSSOP).

Essence

The essence of SN74AHC245PWRG4 lies in its ability to provide bidirectional voltage-level translation between different voltage domains.

Packaging/Quantity

This IC is typically available in reels, with each reel containing a specified quantity of SN74AHC245PWRG4 ICs.

Specifications

  • Supply Voltage Range: 2 V to 5.5 V
  • Input Voltage Range: 0 V to VCC
  • Output Voltage Range: 0 V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 6 ns (typical)
  • Output Drive Capability: ±24 mA

Detailed Pin Configuration

SN74AHC245PWRG4 has a total of 20 pins, which are assigned as follows:

  1. DIR (Direction Control) - Controls the direction of data flow.
  2. OE (Output Enable) - Enables or disables the outputs.
  3. A1-A8 (Input/Output) - Bidirectional data lines.
  4. B1-B8 (Input/Output) - Bidirectional data lines.
  5. GND (Ground) - Ground reference.
  6. VCC (Supply Voltage) - Positive supply voltage.

Functional Features

  • Bidirectional voltage-level translation: SN74AHC245PWRG4 allows for seamless translation of logic levels between different voltage domains.
  • Non-inverting outputs: The IC ensures that the output signals maintain the same logic state as the input signals.
  • Schmitt-trigger inputs: These inputs provide noise immunity, making the IC suitable for noisy environments.
  • High-speed operation: With a propagation delay of just 6 ns, this IC enables fast data transfer.

Advantages and Disadvantages

Advantages

  • Wide operating voltage range allows compatibility with various systems.
  • Low power consumption makes it suitable for battery-powered devices.
  • Schmitt-trigger inputs provide noise immunity.
  • Non-inverting outputs ensure signal integrity.

Disadvantages

  • Limited number of bidirectional data lines (8 in total).
  • May not be suitable for applications requiring a higher number of data lines.

Working Principles

SN74AHC245PWRG4 operates by receiving input signals on the A1-A8 pins and translating them to the corresponding voltage level on the B1-B8 pins. The direction of data flow is controlled by the DIR pin. When enabled, the IC translates the logic levels bidirectionally, allowing seamless communication between different voltage domains.

Detailed Application Field Plans

SN74AHC245PWRG4 finds applications in various fields, including:

  1. Microcontroller interfacing: It can be used to interface microcontrollers operating at different voltage levels.
  2. Communication systems: The IC facilitates voltage translation in communication systems, ensuring compatibility between different components.
  3. Industrial automation: It can be employed in industrial automation systems to enable communication between devices operating at different voltage levels.
  4. Consumer electronics: SN74AHC245PWRG4 is suitable for voltage translation in consumer electronic devices, such as smartphones and tablets.

Detailed and Complete Alternative Models

  1. SN74AHC245RGYR: Similar to SN74AHC245PWRG4, but packaged in a smaller VQFN package.
  2. SN74LVC245APW: Offers similar functionality with lower power consumption, but operates at a narrower voltage range.
  3. SN74LVCH245ADBR: Provides bidirectional voltage-level translation with higher output drive capability, suitable for demanding applications.

These alternative models offer similar features and can be considered based on specific requirements.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi SN74AHC245PWRG4 dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of SN74AHC245PWRG4:

  1. Q: What is the SN74AHC245PWRG4? A: The SN74AHC245PWRG4 is a high-speed octal bus transceiver with 3-state outputs, commonly used for level shifting and signal buffering in digital systems.

  2. Q: What is the operating voltage range of SN74AHC245PWRG4? A: The operating voltage range is from 2 V to 5.5 V.

  3. Q: What is the maximum data transfer rate supported by SN74AHC245PWRG4? A: The maximum data transfer rate is typically 80 MHz.

  4. Q: Can SN74AHC245PWRG4 be used for bidirectional communication? A: Yes, it can be used for bidirectional communication as it has separate input and output pins.

  5. Q: How many channels does SN74AHC245PWRG4 have? A: It has 8 channels, allowing for parallel data transfer.

  6. Q: What is the output drive capability of SN74AHC245PWRG4? A: The output drive capability is typically 8 mA.

  7. Q: Is SN74AHC245PWRG4 compatible with TTL logic levels? A: Yes, it is compatible with both TTL and CMOS logic levels.

  8. Q: Can SN74AHC245PWRG4 handle hot-swapping of signals? A: No, it does not have built-in hot-swapping protection. Additional circuitry may be required for hot-swapping applications.

  9. Q: What is the package type of SN74AHC245PWRG4? A: It is available in a TSSOP-20 package.

  10. Q: What are some typical applications of SN74AHC245PWRG4? A: Some typical applications include level shifting, bus interfacing, signal buffering, and voltage translation in various digital systems.

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