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PCA9540BDP - NXP

Description: Analog Multiplexer, 2:1, 1 Circuit, 31 ohm, 20 µA, 2.3V to 5.5V, TSSOP-8 - 40 C+ 85 C

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PCB Footprints
PCA9540BDP - NXP PCB footprint - Other - Other - SOT505-1_2025-1.1
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PCA9540BDP - NXP  - 3D model - Other - SOT505-1_2025-1.1
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PCA9540BDP Details

  • Manufacturer Part Number:

    PCA9540BDP

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Package Description:

    3 MM, PLASTIC, SOT505-1, TSSOP-8

  • Pin Count:

    8

  • Country Of Origin:

    Thailand

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    NXP Semiconductors

  • YTEOL:

    6

  • Additional Feature:

    ALSO OPERATES WITH 3.6 TO 5.5V SUPPLY

  • Family:

    9540

  • JESD-30 Code:

    S-PDSO-G8

  • Length:

    3 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:

    TSSOP

  • Package Equivalence Code:

    TSSOP8,.19

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • 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:

    1.1 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:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3 mm

PCA9540BDP Frequently Asked Questions (FAQs)

  • The PCA9540BDP can handle I2C bus frequencies up to 400 kHz, but it's recommended to limit it to 100 kHz for reliable operation.
  • Yes, the PCA9540BDP is a voltage-level translator, allowing you to connect I2C buses with different voltage levels, such as 1.8V, 2.5V, 3.3V, or 5V.
  • Make sure to connect the VCC pin to a stable power supply, and the RESET pin to a pull-up resistor to VCC. A reset pulse is required after power-up to initialize the device.
  • Yes, the PCA9540BDP provides electrical isolation between the upstream and downstream I2C buses, allowing you to isolate I2C buses with different clock domains or noise levels.
  • The PCA9540BDP can support up to 8 devices on each downstream I2C bus, but the total capacitance of the bus should not exceed 400 pF to ensure reliable operation.

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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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