PCA9538PW,118
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NXP USA Inc. PCA9538PW,118

Manufacturer No:
PCA9538PW,118
Manufacturer:
NXP USA Inc.
Package:
Tape & Reel (TR)
Description:
IC I/O EXPANDER I2C 8B 16TSSOP
Delivery:
Payment:
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Product Introduction

Overview

The PCA9538PW,118 is a 16-pin CMOS device manufactured by NXP USA Inc., designed to provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion. This device is part of NXP's family of I2C-bus I/O expanders and is developed to enhance the capabilities of I2C-bus/SMBus applications. It features an 8-bit Configuration register, 8-bit Input Port register, 8-bit Output Port register, and an 8-bit Polarity Inversion register, allowing for flexible input/output configuration and polarity inversion. The PCA9538PW,118 is particularly useful in scenarios where additional I/O is required for components such as ACPI power switches, sensors, push-buttons, LEDs, and fans.

Key Specifications

Attribute Value
Interface Type I2C/SMBus
Clock Frequency-Max 400 kHz
No of I/O Lines 8
Supply Voltage-Nom 2.3 V to 5.5 V (3.0 V to 5.5 V for PCA9538PW/Q900)
Supply Current 104 µA
Output Type Push Pull
Output Current 25 mA
Operating Temp Range -40°C to +125°C
Storage Temperature Range -65°C to +150°C
Power Dissipation 0.2 W
Moisture Sensitivity Level 1
Package Style TSSOP-16
Mounting Method Surface Mount

Key Features

  • 8-bit I2C-bus GPIO with interrupt and reset
  • Operating power supply voltage range of 2.3 V to 5.5 V (3.0 V to 5.5 V for PCA9538PW/Q900)
  • 5 V tolerant I/Os
  • Polarity Inversion register for active HIGH or active LOW operation
  • Active LOW interrupt output and Active LOW reset input
  • Low standby current
  • Noise filter on SCL/SDA inputs and no glitch on power-up
  • Internal power-on reset and RESET pin for initialization without de-powering the device
  • ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101
  • Latch-up testing done to JEDEC Standard JESD78 which exceeds 100 mA
  • Available in three different packages: SO16, TSSOP16, and HVQFN16

Applications

The PCA9538PW,118 is designed for various applications where additional I/O is necessary. These include:

  • ACPI power switches
  • Sensors
  • Push-buttons
  • LEDs
  • Fans
  • Other general-purpose I/O expansion needs in embedded systems

Q & A

  1. What is the PCA9538PW,118 used for?

    The PCA9538PW,118 is used for providing 8 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications.

  2. What is the operating voltage range of the PCA9538PW,118?

    The operating voltage range is from 2.3 V to 5.5 V (3.0 V to 5.5 V for PCA9538PW/Q900).

  3. How many I/O lines does the PCA9538PW,118 have?

    The device has 8 I/O lines.

  4. What is the maximum clock frequency of the PCA9538PW,118?

    The maximum clock frequency is 400 kHz.

  5. What type of output does the PCA9538PW,118 have?

    The output type is Push Pull.

  6. What is the operating temperature range of the PCA9538PW,118?

    The operating temperature range is from -40°C to +125°C.

  7. Does the PCA9538PW,118 have ESD protection?
  8. What packages are available for the PCA9538PW,118?

    The device is available in SO16, TSSOP16, and HVQFN16 packages.

  9. How does the PCA9538PW,118 handle power-on reset?

    The device has an internal power-on reset and a RESET pin that initializes the device state machine without de-powering the device.

  10. Can multiple PCA9538PW,118 devices share the same I2C-bus/SMBus?

Product Attributes

Number of I/O:8
Interface:I²C, SMBus
Interrupt Output:Yes
Features:POR
Output Type:Push-Pull
Current - Output Source/Sink:10mA, 25mA
Clock Frequency:400 kHz
Voltage - Supply:2.3V ~ 5.5V
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:16-TSSOP
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Similar Products

Part Number PCA9538PW,118 PCA9539PW,118 PCA9534PW,118 PCA9535PW,118 PCA9538PW,112
Manufacturer NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc. NXP USA Inc.
Product Status Active Active Active Active Obsolete
Number of I/O 8 16 8 16 8
Interface I²C, SMBus I²C, SMBus I²C, SMBus I²C, SMBus I²C, SMBus
Interrupt Output Yes Yes Yes Yes Yes
Features POR POR POR POR POR
Output Type Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull
Current - Output Source/Sink 10mA, 25mA 10mA, 25mA 10mA, 25mA 10mA, 25mA 10mA, 25mA
Clock Frequency 400 kHz 400 kHz 400 kHz 400 kHz 400 kHz
Voltage - Supply 2.3V ~ 5.5V 2.3V ~ 5.5V 2.3V ~ 5.5V 2.3V ~ 5.5V 2.3V ~ 5.5V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 16-TSSOP (0.173", 4.40mm Width) 24-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width) 24-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 16-TSSOP 24-TSSOP 16-TSSOP 24-TSSOP 16-TSSOP

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