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PCA9545APWT - Texas Instruments

Description: 4-Channel I2C And SMBus Multiplexer With Interrupt Logic And Reset Functions

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PCA9545APWT - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0020A
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PCA9545APWT - Texas Instruments  - 3D model - Small Outline Packages - PW0020A
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PCA9545APWT Details

  • Manufacturer Part Number:

    PCA9545APWT

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    TSSOP

  • Pin Count:

    20

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    DIFFERENTIAL MULTIPLEXER

  • JESD-30 Code:

    R-PDSO-G20

  • Length:

    6.5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Channels:

    4

  • Number of Functions:

    1

  • Number of Terminals:

    20

  • On-state Resistance-Max (Ron):

    45 Ω

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TSSOP20,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    1.2 mm

  • Signal Current-Max:

    0.025 A

  • 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:

    0.65 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    4.4 mm

PCA9545APWT Frequently Asked Questions (FAQs)

  • The maximum frequency of operation for the PCA9545APWT is 400 kHz, which is the maximum clock frequency for the I2C bus.
  • To configure the PCA9545APWT for multiple masters on the same bus, you need to use the enable inputs (ENA0-ENA3) to select which master has control of the bus. You can also use the interrupt output (INT) to detect bus collisions and resolve conflicts between masters.
  • The maximum capacitance load that the PCA9545APWT can drive is 400 pF, which is the maximum capacitance load for the I2C bus.
  • The PCA9545APWT can be reset by pulling the reset input (RST) low for at least 1 ms. This will reset the device to its default state.
  • The power consumption of the PCA9545APWT depends on the operating mode and the frequency of operation. In the active mode, the typical power consumption is 1.5 mA, and in the standby mode, it is 1 μA.

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PCA9545APWT 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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