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PCA9548ADBR - Texas Instruments

Description: 8-Channel I2C Switch With Reset

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PCA9548ADBR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DB (R-PDSO-G)-
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PCA9548ADBR Details

  • Manufacturer Part Number:

    PCA9548ADBR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Pin Count:

    24

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Interface IC Type:

    INTERFACE CIRCUIT

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e4

  • Length:

    8.2 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    8

  • Number of Functions:

    8

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2 mm

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.3 V

  • Supply Voltage-Nom:

    2.5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • 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:

    5.3 mm

PCA9548ADBR Frequently Asked Questions (FAQs)

  • The PCA9548ADBR 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 PCA9548ADBR in dual-bus mode, connect the SCL/SDA pins of the two buses to the corresponding pins on the PCA9548ADBR, and use the EN pin to select which bus is active. See the datasheet for specific pin connections and control logic.
  • The PCA9548ADBR can drive bus capacitances up to 400 pF, but it's recommended to limit the capacitance to 200 pF for reliable operation.
  • Yes, the PCA9548ADBR can switch between two I2C buses with different voltage levels, but the voltage difference should not exceed 1.5 V. Additionally, ensure that the voltage levels are within the recommended operating range of the PCA9548ADBR.
  • Ensure that the PCA9548ADBR is powered from a stable voltage source, and that the power-on reset (POR) circuit is properly connected. The POR circuit should be connected to a capacitor and a pull-up resistor to ensure a clean reset signal.

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PCA9548ADBR 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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