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SN74LVC8T245DWR
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SN74LVC8T245DWR

Product Overview

Category

The SN74LVC8T245DWR belongs to the category of integrated circuits (ICs) and specifically falls under the family of bus transceivers.

Use

This IC is primarily used for bidirectional level shifting and voltage translation between different logic levels in digital systems. It enables seamless communication between devices operating at different voltage levels.

Characteristics

  • Bidirectional voltage translation
  • Supports multiple logic levels
  • Low power consumption
  • High-speed operation
  • Wide operating voltage range
  • ESD protection
  • RoHS compliant

Package

The SN74LVC8T245DWR is available in a small-sized surface mount package known as SOIC (Small Outline Integrated Circuit). This package offers ease of handling and compatibility with automated assembly processes.

Essence

The essence of SN74LVC8T245DWR lies in its ability to facilitate reliable and efficient data transfer between devices operating at different voltage levels, ensuring seamless integration within digital systems.

Packaging/Quantity

The IC is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • Logic Voltage Levels: 1.2V to 3.6V
  • Maximum Data Rate: 100 Mbps
  • Number of Channels: 8
  • Input/Output Type: Tri-State
  • Operating Temperature Range: -40°C to +85°C
  • Package Type: SOIC-20

Detailed Pin Configuration

The SN74LVC8T245DWR has a total of 20 pins, which are assigned specific functions. The pin configuration is as follows:

Pin 1: A1 Pin 2: OE# Pin 3: A2 Pin 4: GND Pin 5: B1 Pin 6: B2 Pin 7: VCC Pin 8: DIR# Pin 9: NC (No Connection) Pin 10: B3 Pin 11: B4 Pin 12: B5 Pin 13: B6 Pin 14: B7 Pin 15: B8 Pin 16: VCC Pin 17: A3 Pin 18: A4 Pin 19: A5 Pin 20: A6

Functional Features

  • Bidirectional data transfer between different voltage domains
  • Automatic direction control based on DIR# pin
  • Tri-state outputs for bus sharing
  • ESD protection for enhanced reliability
  • Low power consumption for energy efficiency
  • High-speed operation for quick data transmission

Advantages and Disadvantages

Advantages

  • Enables seamless communication between devices with different voltage levels
  • Supports multiple logic voltage levels, enhancing compatibility
  • Provides bidirectional data transfer, simplifying system design
  • Offers ESD protection, ensuring robustness
  • Low power consumption contributes to energy efficiency
  • High-speed operation facilitates quick data transmission

Disadvantages

  • May require additional external components for specific applications
  • Limited number of channels (8) may not be suitable for larger systems
  • Sensitive to excessive voltage or current, requiring proper handling and protection measures

Working Principles

The SN74LVC8T245DWR operates by receiving input signals from one voltage domain and translating them into the appropriate logic levels compatible with another voltage domain. The automatic direction control feature determines the direction of data flow based on the DIR# pin's state. The tri-state outputs allow multiple devices to share a common bus without interfering with each other.

Detailed Application Field Plans

The SN74LVC8T245DWR finds applications in various fields, including:

  1. Microcontroller interfacing
  2. Communication systems
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics
  6. IoT devices
  7. Robotics
  8. Medical equipment

In these applications, the IC facilitates seamless communication between different voltage domains, enabling efficient data transfer and integration within complex digital systems.

Detailed and Complete Alternative Models

  1. TXB0108PWR: 8-Bit Bidirectional Voltage-Level Translator with Automatic Direction Control
  2. PCA9306DCTR: Dual Bi-Directional I2C Bus and SMBus Voltage-Level Translator
  3. SN74AVC4T245PW: 4-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation

These alternative models offer similar functionality to the SN74LVC8T245DWR and can be considered as alternatives based on specific application requirements.

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技術ソリューションにおける SN74LVC8T245DWR の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of SN74LVC8T245DWR in technical solutions:

  1. Q: What is SN74LVC8T245DWR? A: SN74LVC8T245DWR is a bidirectional voltage-level translator and logic level shifter integrated circuit (IC) manufactured by Texas Instruments.

  2. Q: What is the purpose of SN74LVC8T245DWR? A: SN74LVC8T245DWR is used to translate logic levels between different voltage domains, allowing communication between devices operating at different voltage levels.

  3. Q: What voltage levels can SN74LVC8T245DWR handle? A: SN74LVC8T245DWR can handle voltage levels ranging from 1.65V to 5.5V, making it suitable for interfacing between various logic families.

  4. Q: How many bidirectional channels does SN74LVC8T245DWR have? A: SN74LVC8T245DWR has 8 bidirectional channels, allowing for simultaneous translation of up to 8 signals.

  5. Q: Can SN74LVC8T245DWR be used for level shifting between different I/O standards? A: Yes, SN74LVC8T245DWR can be used for level shifting between various I/O standards such as TTL, CMOS, and LVCMOS.

  6. Q: What is the maximum data transfer rate supported by SN74LVC8T245DWR? A: SN74LVC8T245DWR supports data transfer rates up to 100 Mbps, making it suitable for high-speed applications.

  7. Q: Does SN74LVC8T245DWR require external pull-up or pull-down resistors? A: No, SN74LVC8T245DWR has built-in weak pull-up and pull-down resistors, eliminating the need for external resistors in most cases.

  8. Q: Can SN74LVC8T245DWR be used for level shifting bidirectional I2C signals? A: Yes, SN74LVC8T245DWR can be used to level shift bidirectional I2C signals, making it compatible with I2C communication between devices operating at different voltage levels.

  9. Q: What is the power supply voltage range for SN74LVC8T245DWR? A: SN74LVC8T245DWR operates with a power supply voltage range of 1.65V to 5.5V.

  10. Q: Is SN74LVC8T245DWR available in different package options? A: Yes, SN74LVC8T245DWR is available in various package options, including SOIC (Small Outline Integrated Circuit) and TSSOP (Thin Shrink Small Outline Package).

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.