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PCA9545APW - Texas Instruments

Description: Texas Instruments PCA9545APW, Multiplexer Single 4 x 1 Bidirectional Translating Switch, 2.3 → 5.5 V, 20-Pin

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PCA9545APW - Texas Instruments - PCB symbol
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PCB Footprints
PCA9545APW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0020A
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3D Models
PCA9545APW - Texas Instruments - 3D model - Small Outline Packages - PW0020A
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PCA9545APW Details

  • Manufacturer Part Number:

    PCA9545APW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-20

  • Pin Count:

    20

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

PCA9545APW Frequently Asked Questions (FAQs)

  • The PCA9545APW can support I2C bus frequencies up to 400 kHz, but it's recommended to limit it to 100 kHz for reliable operation.
  • Yes, the PCA9545APW can switch between multiple I2C buses with different voltage levels, but ensure that the voltage levels are within the recommended operating range of 1.65 V to 5.5 V.
  • To ensure correct switching, ensure that the enable pins (EN0-EN3) are properly controlled, and the bus selection pins (A0-A2) are correctly configured to select the desired I2C bus.
  • The PCA9545APW can drive up to 400 pF of capacitance on the I2C bus, but it's recommended to limit it to 200 pF for reliable operation.
  • Yes, the PCA9545APW is suitable for hot-swappable I2C bus applications, but ensure that the power sequencing and bus switching are properly controlled to avoid bus conflicts.

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PCA9545APW Overview

Use the download button to access the PCA9545APW schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like PCA95, or try a keyword search, such as Multiplexers or Switches

About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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