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PCF8575CDW - Texas Instruments

Description: Remote 16-Bit I2C and SMBus I/O Expander with Interrupt Output

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PCF8575CDW - Texas Instruments - PCB symbol
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PCB Footprints
PCF8575CDW - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DW (R-PDSO-G24)
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PCF8575CDW - Texas Instruments - 3D model - Small Outline Packages - DW (R-PDSO-G24)
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PCF8575CDW Details

  • Manufacturer Part Number:

    PCF8575CDW

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOIC

  • Pin Count:

    24

  • Country Of Origin:

    Taiwan

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Address Bus Width:

    8

  • Clock Frequency-Max:

    0.4 MHz

  • JESD-30 Code:

    R-PDSO-G24

  • JESD-609 Code:

    e4

  • Length:

    15.4 mm

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    16

  • Number of I/O Lines:

    16

  • Number of Ports:

    2

  • Number of Terminals:

    24

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP24,.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:

    0.2 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    4.5 V

  • Supply Voltage-Nom:

    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

PCF8575CDW Frequently Asked Questions (FAQs)

  • The PCF8575CDW can support I2C bus frequencies up to 400 kHz, but it is recommended to operate at 100 kHz or lower for reliable operation.
  • No, the PCF8575CDW is not designed to be used as a level shifter. It is intended to be used as an I2C-bus extender or repeater, and its output voltage is the same as its supply voltage (VCC).
  • The PCF8575CDW has a built-in power-on reset (POR) circuit that resets the device when the power supply voltage (VCC) is applied. To handle POR, ensure that the I2C bus is idle during power-up, and wait for at least 1 ms after power-up before sending I2C commands.
  • Yes, the PCF8575CDW can be used to extend the I2C bus distance beyond 1 meter, but the maximum distance depends on the cable capacitance, signal frequency, and noise environment. It is recommended to use a repeater or buffer every 1-2 meters to maintain signal integrity.
  • To troubleshoot I2C bus communication issues, use a logic analyzer or oscilloscope to monitor the I2C bus signals (SCL and SDA). Check for proper signal levels, rise and fall times, and ensure that the I2C bus is not overloaded or noisy.

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PCF8575CDW 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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PCF8575CDW Alternates

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Part Image PCF8575CDWE4 Texas Instruments

Parallel I/O Port, 16-Bit, 16 I/O, CMOS, PDSO24