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PCA9544APW - Texas Instruments

Description: Texas Instruments PCA9544APW, Multiplexer Single 4 x 1 Bidirectional Translating Switch, 2.3 → 5.5 V, 20-Pin

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PCA9544APW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW
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PCA9544APW Details

  • Manufacturer Part Number:

    PCA9544APW

  • 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

  • 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:

    1

  • 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:

    TUBE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    12 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

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

PCA9544APW Frequently Asked Questions (FAQs)

  • The PCA9544APW can support I2C bus frequencies up to 400 kHz, but it's recommended to limit the frequency to 100 kHz for reliable operation.
  • To configure the PCA9544APW for multiple masters, connect the SCL and SDA pins of each master to the corresponding pins on the PCA9544APW. Ensure that each master has a unique address and follows the I2C protocol.
  • The PCA9544APW can drive a maximum capacitance of 400 pF on the I2C bus. Exceeding this limit may affect the signal integrity and reliability of the bus.
  • Yes, the PCA9544APW can be used to extend the distance of the I2C bus by repeating the signal and providing a buffer stage. However, the maximum distance extension depends on the specific application and bus loading conditions.
  • To troubleshoot issues with the PCA9544APW, use a logic analyzer or oscilloscope to monitor the I2C bus signals. Check for bus faults, such as clock stretching or bus contention, and ensure that the device is properly powered and configured.

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PCA9544APW 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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For a full list of alternate parts for PCA9544APW, check out Findchips.com