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PCA9544ADW - Texas Instruments

Description: Texas Instruments PCA9544ADW, Multiplexer Switch IC Quad 4:1 Multiplexer, 2.3 → 5.5 V, 20-Pin SOIC

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PCA9544ADW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW0020A height 2.65
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PCA9544ADW Details

  • Manufacturer Part Number:

    PCA9544ADW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    SOIC

  • Package Description:

    SOP-20

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    3.9

  • Family:

    9544

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    12.8 mm

  • Load Capacitance (CL):

    100 pF

  • Logic IC Type:

    MULTIPLEXER

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    4

  • Number of Inputs:

    4

  • Number of Outputs:

    1

  • Number of Terminals:

    20

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    0.012 mA

  • Prop. Delay@Nom-Sup:

    1 ns

  • Propagation Delay (tpd):

    1000 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.3 V

  • Supply Voltage-Nom (Vsup):

    2.5 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

PCA9544ADW Frequently Asked Questions (FAQs)

  • The PCA9544ADW can support I2C bus frequencies up to 400 kHz, but it's recommended to limit the frequency to 100 kHz for reliable operation.
  • Yes, the PCA9544ADW is a voltage-level translator, which means it can connect I2C buses with different voltage levels, such as 1.8V, 2.5V, 3.3V, or 5V.
  • To ensure correct switching, make sure to use the correct control signals (SCL0, SCL1, SDA0, and SDA1) and follow the recommended switching sequence outlined in the datasheet.
  • The PCA9544ADW can drive I2C buses with capacitance up to 400 pF, but it's recommended to limit the capacitance to 100 pF for reliable operation.
  • Yes, the PCA9544ADW is designed to support hot-swappable I2C bus applications, but make sure to follow the recommended power-up and power-down sequences to avoid bus conflicts.

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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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