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PCA9543APW - Texas Instruments

Description: Texas Instruments PCA9543APW, Multiplexer Dual 2:1 Multiplexer, 2.3 → 5.5 V, 14-Pin TSSOP

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PCA9543APW - Texas Instruments - PCB symbol
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PCB Footprints
PCA9543APW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G14)
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PCA9543APW - Texas Instruments - 3D model - Small Outline Packages - PW (R-PDSO-G14)
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PCA9543APW Details

  • Manufacturer Part Number:

    PCA9543APW

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Pin Count:

    14

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SINGLE-ENDED MULTIPLEXER

  • JESD-30 Code:

    R-PDSO-G14

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    14

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    COMMON OUTPUT

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP14,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.2 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.3 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    4.4 mm

PCA9543APW Frequently Asked Questions (FAQs)

  • The PCA9543APW can support I2C bus frequencies up to 400 kHz, but it's recommended to limit it to 100 kHz for reliable operation.
  • To configure the PCA9543APW in dual-bus mode, connect the SCL/SDA pins of the two buses to the corresponding pins on the PCA9543APW, and use the EN pin to enable or disable each bus. See the application note for detailed configuration and programming information.
  • The PCA9543APW can drive bus capacitances up to 400 pF, but it's recommended to keep the bus capacitance below 200 pF for reliable operation.
  • Yes, the PCA9543APW can be used to switch between multiple I2C masters, but it requires careful programming and synchronization to avoid bus conflicts and ensure reliable operation.
  • To handle hot-swapping of I2C devices with the PCA9543APW, use the EN pin to disable the bus before hot-swapping, and then re-enable the bus after the device is inserted or removed. This ensures that the bus is not disturbed during the hot-swap process.

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PCA9543APW Overview

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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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