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PCA9538DW - Texas Instruments

Description: Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output, Reset, and Config Registers

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PCA9538DW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G16)
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PCA9538DW - Texas Instruments  - 3D model - Small Outline Packages - DW (R-PDSO-G16)
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PCA9538DW Details

  • Manufacturer Part Number:

    PCA9538DW

  • 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:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Address Bus Width:

    4

  • Clock Frequency-Max:

    0.4 MHz

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    10.3 mm

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    8

  • Number of I/O Lines:

    8

  • Number of Ports:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.4

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    2.65 mm

  • Supply Current-Max:

    0.175 mA

  • 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:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    7.5 mm

  • uPs/uCs/Peripheral ICs Type:

    PARALLEL IO PORT, GENERAL PURPOSE

PCA9538DW Frequently Asked Questions (FAQs)

  • The PCA9538DW can support I2C bus frequencies up to 400 kHz, but it is recommended to operate at 100 kHz or 400 kHz to ensure compatibility with other devices on the bus.
  • In such cases, you can try resetting the device by toggling the RESET pin or by performing a power-on reset. If the issue persists, it may indicate a hardware fault or a problem with the I2C bus.
  • No, the PCA9538DW is not designed to be used as a level shifter. It is intended to be used as an I2C-bus controlled 8-bit I/O expander. If you need to level shift, you should use a dedicated level shifter IC.
  • The maximum current that can be sourced or sunk by each I/O pin is 25 mA. However, the total current sourced or sunk by all I/O pins should not exceed 100 mA to prevent overheating and ensure reliable operation.
  • No, the PCA9538DW is not designed to drive inductive loads. It is intended to drive resistive loads such as LEDs or switches. If you need to drive inductive loads, you should use a dedicated driver IC or a transistor with a suitable current rating.

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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 PCA9538DWR Texas Instruments

Parallel I/O Port, 8-Bit, 8 I/O, CMOS, PDSO16