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PCA9546ADR - Texas Instruments

Description: 4-Channel I2C And SMBus Switch With Reset Functions

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PCA9546ADR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - d (r-pdso-g16)-
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PCA9546ADR Details

  • Manufacturer Part Number:

    PCA9546ADR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    16

  • Country Of Origin:

    Malaysia, Mexico

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog IC - Other Type:

    SINGLE-ENDED MULTIPLEXER

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.9 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • On-state Resistance-Max (Ron):

    45 Ω

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    SEPARATE OUTPUT

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    0.012 mA

  • Supply Voltage-Max (Vsup):

    5.5 V

  • Supply Voltage-Min (Vsup):

    2.3 V

  • Supply Voltage-Nom (Vsup):

    2.5 V

  • Surface Mount:

    YES

  • Switch-off Time-Max:

    1 ns

  • Switch-on Time-Max:

    1 ns

  • 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:

    3.9 mm

PCA9546ADR Frequently Asked Questions (FAQs)

  • The PCA9546ADR 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 PCA9546ADR can be used as a level shifter for I2C signals, allowing you to translate between different voltage levels (e.g., 1.8V to 3.3V or 5V).
  • To configure the PCA9546ADR for a multi-master I2C bus environment, you need to connect the INT pin to the interrupt input of the microcontroller and use the interrupt to detect bus collisions and resolve them accordingly.
  • The PCA9546ADR can support up to 8 downstream I2C buses, each with its own set of devices, allowing you to connect a large number of devices to the I2C bus.
  • The PCA9546ADR can be reset by pulling the RESET pin low for at least 1 ms. This will reset the device and clear all internal registers.

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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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Part Image PCA9546ADT Texas Instruments

4-channel 2.3- to 5.5-V I2C/SMBus switch with reset & voltage translation 16-SOIC -40 to 85

Part Image PCA9546AD Texas Instruments

Single-Ended Multiplexer, 1 Func, 4 Channel, PDSO16