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PCA9540BD - NXP

Description: I2C Multiplexer 1-Element 2-IN 8-Pin SO

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PCA9540BD - NXP PCB footprint - Small Outline Packages - Small Outline Packages - SOT96-1
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PCA9540BD - NXP  - 3D model - Small Outline Packages - SOT96-1
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PCA9540BD Details

  • Manufacturer Part Number:

    PCA9540BD

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    End Of Life

  • Part Package Code:

    SOIC

  • Package Description:

    SOP-8

  • Pin Count:

    8

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    NXP Semiconductors

  • YTEOL:

    1

  • Additional Feature:

    ALSO OPERATES WITH 3.6 TO 5.5V SUPPLY

  • Family:

    9540

  • JESD-30 Code:

    R-PDSO-G8

  • Length:

    4.9 mm

  • Load Capacitance (CL):

    15 pF

  • Logic IC Type:

    MULTIPLEXER

  • Max I(ol):

    0.006 A

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Inputs:

    2

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Polarity:

    TRUE

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Power Supply Current-Max (ICC):

    0.1 mA

  • Prop. Delay@Nom-Sup:

    0.3 ns

  • Propagation Delay (tpd):

    0.3 ns

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Voltage-Max (Vsup):

    3.6 V

  • Supply Voltage-Min (Vsup):

    2.3 V

  • Supply Voltage-Nom (Vsup):

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • 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

PCA9540BD Frequently Asked Questions (FAQs)

  • The PCA9540BD can support I2C bus frequencies up to 400 kHz, but it's recommended to limit the frequency to 100 kHz to ensure reliable operation.
  • No, the PCA9540BD is designed to switch between multiple I2C buses, not multiple I2C masters. It's intended to allow a single I2C master to access multiple I2C buses.
  • To ensure correct switching, make sure to follow the recommended switching sequence in the datasheet, and use the EN (enable) pin to disable the switch during power-up and power-down to prevent bus contention.
  • The PCA9540BD can drive I2C buses with capacitance up to 400 pF, but it's recommended to keep the bus capacitance as low as possible to ensure reliable operation.
  • No, the PCA9540BD is not designed to switch between I2C buses with different voltage levels. It's intended to operate within a single voltage domain.

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About NXP

NXP Semiconductors is a leading manufacturer of semiconductor devices with a wide range of semiconductor solutions, including microcontrollers, sensors, connectivity solutions, power management ICs, and security solutions. These products are used in a variety of applications such as automotive, industrial automation, smart homes, mobile devices, and more. NXP Semiconductors is one of the world’s largest semiconductor companies and is headquartered in Eindhoven, the Netherlands.

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Part Image PCA9540BD,112 NXP Semiconductors

Multiplexer, 9540 Series, 1-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDSO8