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SN74LVC8T245DWRG4

SN74LVC8T245DWRG4

Product Overview

Category

The SN74LVC8T245DWRG4 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for level shifting and signal buffering in various electronic applications.

Characteristics

  • Voltage Level Shifting: The SN74LVC8T245DWRG4 can shift voltage levels between different logic families, making it versatile for interfacing between devices operating at different voltage levels.
  • Signal Buffering: It provides a high impedance buffer to prevent loading effects on the input signal, ensuring reliable transmission.
  • Bidirectional Communication: This IC supports bidirectional data transfer, allowing data to be transmitted in both directions.

Package

The SN74LVC8T245DWRG4 is available in a standard surface mount package (DW) with 20 pins.

Essence

The essence of this IC lies in its ability to facilitate voltage level shifting and signal buffering, enabling seamless communication between devices operating at different voltage levels.

Packaging/Quantity

The SN74LVC8T245DWRG4 is typically packaged in reels or tubes, containing a quantity of 250 units per package.

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • Logic Family: LVC
  • Number of Channels: 8
  • Input/Output Type: Tri-State
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 3.7ns (typical)
  • Output Drive Capability: ±24mA

Detailed Pin Configuration

The pin configuration of the SN74LVC8T245DWRG4 is as follows:

___________ OE | 1 20 | VCC A1 | 2 19 | B1 A2 | 3 18 | B2 A3 | 4 17 | B3 A4 | 5 16 | B4 A5 | 6 15 | B5 A6 | 7 14 | B6 GND | 8 13 | B7 A7 | 9 12 | B8 A8 |10 11 | OE# ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

  • Bidirectional Data Transfer: The SN74LVC8T245DWRG4 allows data to be transmitted in both directions, making it suitable for applications requiring bidirectional communication.
  • Voltage Level Shifting: It can shift voltage levels between different logic families, ensuring compatibility between devices operating at different voltage levels.
  • High Impedance Buffer: The IC provides a high impedance buffer to prevent loading effects on the input signal, maintaining signal integrity.

Advantages and Disadvantages

Advantages

  • Versatile voltage level shifting capabilities
  • Bidirectional data transfer support
  • High impedance buffering for reliable signal transmission
  • Wide supply voltage range for compatibility with various systems

Disadvantages

  • Propagation delay may limit its use in high-speed applications
  • Limited output drive capability compared to some other ICs

Working Principles

The SN74LVC8T245DWRG4 operates by receiving input signals and shifting their voltage levels to match the desired output voltage. It utilizes internal circuitry to perform the necessary level shifting and buffering functions. The IC's bidirectional nature allows it to handle data transmission in both directions, enabling seamless communication between devices.

Detailed Application Field Plans

The SN74LVC8T245DWRG4 finds applications in various fields, including:

  1. Microcontroller Interfacing: It is commonly used to interface microcontrollers operating at different voltage levels, ensuring proper communication between them.
  2. Communication Systems: The IC facilitates level shifting and buffering in communication systems, enabling data transmission between devices with varying voltage requirements.
  3. Industrial Automation: It plays a crucial role in industrial automation systems, allowing for the integration of devices operating at different voltage levels.
  4. Consumer Electronics: The SN74LVC8T245DWRG4 is utilized in consumer electronics products where voltage level shifting and signal buffering are required.

Detailed and Complete Alternative Models

  1. SN74LVC8T245PW: This model offers similar functionality but comes in a different package (TSSOP) with 20 pins.
  2. SN74LVC8T245DBVR: A smaller alternative, this model is available in a SOT-23 package with 8 pins.
  3. SN74LVC8T245PWR: Similar to the SN74LVC8T245DWR

Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng SN74LVC8T245DWRG4 trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of SN74LVC8T245DWRG4 in technical solutions:

  1. Q: What is SN74LVC8T245DWRG4? A: SN74LVC8T245DWRG4 is a bidirectional voltage level translator and voltage-level shifter integrated circuit (IC) manufactured by Texas Instruments.

  2. Q: What is the purpose of SN74LVC8T245DWRG4? A: SN74LVC8T245DWRG4 is used to translate logic levels between different voltage domains, enabling communication between devices operating at different voltage levels.

  3. Q: What voltage levels can SN74LVC8T245DWRG4 support? A: SN74LVC8T245DWRG4 supports voltage translation between two voltage domains, typically ranging from 1.2V to 5.5V.

  4. Q: How many channels does SN74LVC8T245DWRG4 have? A: SN74LVC8T245DWRG4 has 8 bidirectional channels, allowing for simultaneous translation of up to 8 signals.

  5. Q: What is the maximum data rate supported by SN74LVC8T245DWRG4? A: SN74LVC8T245DWRG4 can support data rates up to 100 Mbps, making it suitable for various high-speed communication interfaces.

  6. Q: Can SN74LVC8T245DWRG4 be used for level shifting in I2C or SPI interfaces? A: Yes, SN74LVC8T245DWRG4 is commonly used for level shifting in I2C, SPI, and other serial communication interfaces.

  7. Q: Does SN74LVC8T245DWRG4 require external pull-up or pull-down resistors? A: Yes, SN74LVC8T245DWRG4 requires external pull-up or pull-down resistors for proper operation in certain applications.

  8. Q: Can SN74LVC8T245DWRG4 handle bi-directional voltage translation? A: Yes, SN74LVC8T245DWRG4 supports bidirectional voltage translation, allowing data to flow in both directions between the two voltage domains.

  9. Q: What is the power supply voltage range for SN74LVC8T245DWRG4? A: SN74LVC8T245DWRG4 operates with a power supply voltage range of 1.65V to 5.5V.

  10. Q: Are there any specific precautions to consider when using SN74LVC8T245DWRG4? A: It is important to ensure that the voltage levels and timing requirements of the connected devices are compatible with SN74LVC8T245DWRG4. Additionally, proper decoupling capacitors should be used to minimize noise and ensure stable operation.

Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and application notes provided by the manufacturer for detailed information.