Texas Instruments
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SN74LV245APWG4
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SN74LV245APWG4

Product Overview

Category

SN74LV245APWG4 belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a bidirectional octal bus transceiver.

Characteristics

  • Voltage Level Translation: It supports voltage level translation between different logic levels.
  • Bidirectional Communication: It allows data transmission in both directions.
  • High-Speed Operation: It operates at high speeds, making it suitable for applications requiring fast data transfer.
  • Low Power Consumption: It consumes low power, making it energy-efficient.
  • Wide Operating Voltage Range: It can operate within a wide range of input voltages.
  • ESD Protection: It provides electrostatic discharge (ESD) protection, ensuring reliability.

Package

SN74LV245APWG4 is available in a TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of SN74LV245APWG4 lies in its ability to facilitate bidirectional communication and voltage level translation in various electronic systems.

Packaging/Quantity

It is typically packaged in reels or tubes, with a quantity of 2500 units per reel.

Specifications

  • Logic Family: LV (Low Voltage)
  • Number of Channels: 8
  • Supply Voltage Range: 1.65V to 5.5V
  • Input Voltage Levels: CMOS/TTL compatible
  • Output Voltage Levels: CMOS/TTL compatible
  • Maximum Data Rate: 100 Mbps
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

┌───┐ A1 -|1 20|- VCC B1 -|2 19|- OE# A2 -|3 18|- B2 B2 -|4 17|- A2 A3 -|5 16|- B3 B3 -|6 15|- A3 A4 -|7 14|- B4 B4 -|8 13|- A4 GND -|9 12|- B5 OE -|10 11|- A5 └───┘

Functional Features

  • Bidirectional Data Transfer: SN74LV245APWG4 allows data to be transmitted in both directions, enabling communication between different parts of a system.
  • Voltage Level Translation: It can translate logic levels between different voltage domains, ensuring compatibility between devices operating at different voltages.
  • Output Enable Control: The OE# pin enables or disables the outputs, providing control over the data flow.

Advantages and Disadvantages

Advantages

  • Versatile: Suitable for various applications requiring bidirectional data transfer and voltage level translation.
  • High-Speed Operation: Capable of handling fast data rates.
  • Low Power Consumption: Energy-efficient design.
  • ESD Protection: Provides protection against electrostatic discharge, enhancing reliability.

Disadvantages

  • Limited Channel Count: Only supports 8 channels, which may not be sufficient for certain applications requiring a higher number of channels.
  • Temperature Limitations: Operating temperature range limited to -40°C to +85°C, which may restrict its use in extreme temperature environments.

Working Principles

SN74LV245APWG4 operates by receiving input signals on the A1-A5 pins and transmitting them to the corresponding B1-B5 pins. Simultaneously, it can receive input signals on the B1-B5 pins and transmit them to the corresponding A1-A5 pins. The direction of data flow is controlled by the OE# pin. When OE# is low, the outputs are enabled, allowing bidirectional data transfer. When OE# is high, the outputs are disabled, effectively isolating the input and output sides.

Detailed Application Field Plans

SN74LV245APWG4 finds applications in various fields, including:

  1. Microcontrollers: It enables communication between microcontrollers operating at different voltage levels.
  2. Data Communication Systems: It facilitates bidirectional data transfer between different parts of a communication system.
  3. Industrial Automation: Used for interfacing between different components in industrial automation systems.
  4. Automotive Electronics: Enables voltage level translation and data transfer in automotive electronic systems.
  5. Consumer Electronics: Used in devices requiring bidirectional communication and voltage level translation, such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

  • SN74LVC245A: Similar functionality with improved voltage tolerance.
  • SN74HCT245: Compatible with higher voltage levels.
  • SN74LVCH245A: Supports lower voltage levels and offers faster switching speeds.

These alternative models provide similar functionality to SN74LV245APWG4 but may have different specifications or additional features.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74LV245APWG4 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74LV245APWG4 in technical solutions:

  1. Q: What is SN74LV245APWG4? A: SN74LV245APWG4 is a type of octal bus transceiver with 3-state outputs, commonly used for level shifting and voltage translation in digital systems.

  2. Q: What is the operating voltage range of SN74LV245APWG4? A: SN74LV245APWG4 operates within a voltage range of 1.65V to 5.5V.

  3. Q: How many bidirectional channels does SN74LV245APWG4 have? A: SN74LV245APWG4 has 8 bidirectional channels, allowing data transmission in both directions.

  4. Q: Can SN74LV245APWG4 handle high-speed data transfer? A: Yes, SN74LV245APWG4 is designed to support high-speed data transfer up to 100 MHz.

  5. Q: What is the maximum output current of SN74LV245APWG4? A: The maximum output current per channel of SN74LV245APWG4 is typically 12 mA.

  6. Q: Does SN74LV245APWG4 have built-in protection features? A: Yes, SN74LV245APWG4 includes built-in ESD (electrostatic discharge) protection on all inputs and outputs.

  7. Q: Can SN74LV245APWG4 be used for level shifting between different voltage domains? A: Yes, SN74LV245APWG4 is commonly used for level shifting between different voltage domains, such as 3.3V and 5V.

  8. Q: Is SN74LV245APWG4 compatible with both CMOS and TTL logic levels? A: Yes, SN74LV245APWG4 is compatible with both CMOS (Complementary Metal-Oxide-Semiconductor) and TTL (Transistor-Transistor Logic) logic levels.

  9. Q: Can SN74LV245APWG4 be used in bi-directional data buses? A: Yes, SN74LV245APWG4 is suitable for use in bi-directional data buses, allowing bidirectional communication between different parts of a system.

  10. Q: What package does SN74LV245APWG4 come in? A: SN74LV245APWG4 is available in a TSSOP (Thin Shrink Small Outline Package) package, which is compact and suitable for space-constrained applications.

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