Texas Instruments
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SN74ALVC245DWR
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SN74ALVC245DWR

Product Overview

  • Category: Integrated Circuit
  • Use: Level Shifter/Transceiver
  • Characteristics: Bi-directional, 8-bit, voltage level translation
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Transfers data between different voltage domains
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 1.65V to 3.6V
  • High-Level Input Voltage: 2V to VCC + 0.5V
  • Low-Level Input Voltage: -0.5V to 0.8V
  • High-Level Output Voltage: VCC - 0.4V
  • Low-Level Output Voltage: 0.4V
  • Maximum Operating Frequency: 400MHz
  • Number of Pins: 20

Detailed Pin Configuration

  1. OE (Output Enable)
  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)
  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 Control)

Functional Features

  • Bi-directional data transfer between two voltage domains
  • Automatic direction control based on DIR pin
  • 3-state outputs for bus-oriented applications
  • Supports voltage level translation from 1.65V to 3.6V

Advantages and Disadvantages

Advantages

  • Wide supply voltage range allows compatibility with various systems
  • Bi-directional functionality simplifies data transfer between different voltage domains
  • 3-state outputs enable easy integration into bus-oriented designs

Disadvantages

  • Limited maximum operating frequency of 400MHz
  • Only supports voltage level translation within the specified range

Working Principles

The SN74ALVC245DWR is a level shifter/transceiver integrated circuit that facilitates bi-directional data transfer between two voltage domains. It operates by automatically controlling the direction of data flow based on the input provided to the DIR pin. The device features 3-state outputs, allowing it to be easily integrated into bus-oriented applications. The supply voltage range of 1.65V to 3.6V ensures compatibility with a wide range of systems.

Detailed Application Field Plans

The SN74ALVC245DWR is commonly used in various applications where voltage level translation is required. Some potential application fields include:

  1. Microcontroller interfacing with different voltage peripherals
  2. Communication interfaces between devices operating at different voltage levels
  3. Data transfer between mixed-voltage systems
  4. Bus-oriented designs requiring bidirectional data transfer

Detailed and Complete Alternative Models

  1. TXB0108PWR: 8-bit Bidirectional Voltage-Level Translator
  2. PCA9306DCUR: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator
  3. SN74LVC4245APW: Octal Bus Transceiver with 3-State Outputs

These alternative models offer similar functionality and can be considered as alternatives to the SN74ALVC245DWR.

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Orodhesha maswali na majibu 10 ya kawaida yanayohusiana na utumiaji wa SN74ALVC245DWR katika suluhu za kiufundi

Sure! Here are 10 common questions and answers related to the application of SN74ALVC245DWR:

  1. Q: What is SN74ALVC245DWR? A: SN74ALVC245DWR is a bidirectional 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 SN74ALVC245DWR? A: The operating voltage range is typically between 1.65V and 3.6V.

  3. Q: Can SN74ALVC245DWR be used for level shifting between different voltage domains? A: Yes, SN74ALVC245DWR can be used for level shifting between different voltage domains, as long as the voltage levels are within its operating range.

  4. Q: How many bidirectional channels does SN74ALVC245DWR have? A: SN74ALVC245DWR has 8 bidirectional channels, allowing it to handle 8 data lines simultaneously.

  5. Q: What is the maximum data transfer rate supported by SN74ALVC245DWR? A: SN74ALVC245DWR supports data transfer rates up to 400 Mbps (megabits per second).

  6. Q: Can SN74ALVC245DWR be used for level shifting between TTL and CMOS logic levels? A: Yes, SN74ALVC245DWR can be used for level shifting between TTL (5V) and CMOS (3.3V) logic levels.

  7. Q: Does SN74ALVC245DWR have built-in ESD protection? A: Yes, SN74ALVC245DWR has built-in ESD (electrostatic discharge) protection, which helps to safeguard against static electricity damage.

  8. Q: Can SN74ALVC245DWR be used in both parallel and serial communication systems? A: Yes, SN74ALVC245DWR can be used in both parallel and serial communication systems, depending on the application requirements.

  9. Q: What is the power supply voltage required for SN74ALVC245DWR? A: SN74ALVC245DWR requires a single power supply voltage, typically between 1.65V and 3.6V.

  10. Q: Is SN74ALVC245DWR available in different package options? A: Yes, SN74ALVC245DWR is available in various package options, such as SOIC (Small Outline Integrated Circuit) and TSSOP (Thin Shrink Small Outline Package).

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