PCA9538PWRG4 - Brand New Texas Instruments I/O Expanders
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Description
The PCA9538 is a 16-pin CMOS device that provides 8 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C/SMBus applications. It was developed to enhance the Philips family of I2C I/O expanders. I/O expanders are used when additional I/O is needed for ACPI power switches, sensors, pushbuttons, LEDs, fans, and more.
Specifications and features
• 8-bit I2C GPIO with interrupt and reset
• Operating power supply voltage range of 2.3 V to 5.5 V
• 5 V tolerant I/Os
• Polarity inversion register
• Active LOW interrupt output
• Active LOW reset input
• Low stand-by current
• Noise filter on SCL/SDA inputs
• No glitch on power-up
• Internal power-on reset
• 8 I/O pins which default to 8 inputs
• 0 kHz to 400 kHz clock frequency
• ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
• Latch-up testing is done to JESDEC Standard JESD78 which exceeds 100 mA
• Offered in three different packages: SO16, TSSOP16, and HVQFN16Application Scenarios
The PCA9538 is suitable for various I2C/SMBus applications where additional GPIO expansion with interrupt and reset is required. It can be used in ACPI power switches, sensors, pushbuttons, LEDs, fans, and other devices that require additional I/O.
Comparison
Advantages- Provides 8 bits of GPIO expansion
- Includes interrupt and reset features
- Wide operating power supply voltage range
- 5 V tolerant I/Os
- Internal power-on reset
- Offers three different packages: SO16, TSSOP16, and HVQFN16
Disadvantages- None identified
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Datasheet
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Popular parts of the same kind
- Datasheet: Download PCA9538PWRG4
- Chipdatas Part: CD88-PCA9538PWRG4
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- Last Updated: 2024/06/03 11:50 +0800
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