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PCA9544APWRG4 - Texas Instruments

Description: Switch ICs - Various 4-Ch I2C And SMBus Multiplexer

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PCA9544APWRG4 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW (R-PDSO-G20)
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PCA9544APWRG4 - Texas Instruments  - 3D model - Small Outline Packages - PW (R-PDSO-G20)
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PCA9544APWRG4 Details

  • Manufacturer Part Number:

    PCA9544APWRG4

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    TSSOP

  • Package Description:

    TSSOP-20

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Family:

    9544

  • JESD-30 Code:

    R-PDSO-G20

  • JESD-609 Code:

    e4

  • Length:

    6.5 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:

    TSSOP

  • Package Equivalence Code:

    TSSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • 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:

    1.2 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:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

PCA9544APWRG4 Frequently Asked Questions (FAQs)

  • The PCA9544A can support I2C bus frequencies up to 400 kHz, but it's recommended to limit the frequency to 100 kHz to ensure reliable operation.
  • Yes, the PCA9544A can switch between multiple I2C buses with different voltage levels, but the voltage on the SCL and SDA pins must be within the recommended operating range of 1.65 V to 5.5 V.
  • To ensure correct switching, make sure to follow the recommended switching sequence and timing in the datasheet, and use a pull-up resistor on the SCL and SDA pins of each bus.
  • Yes, the PCA9544A can handle clock stretching on each bus independently, but the master device must be able to handle the clock stretching requirements of each bus.
  • The PCA9544A can drive I2C buses with capacitance up to 400 pF, but the actual capacitance limit may be lower depending on the specific application and operating conditions.

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PCA9544APWRG4 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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