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PCA9575 - low voltage GPIO

Description

The PCA9575 is a CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion in low voltage processor and handheld battery powered mobile applications and was developed to enhance the NXP family of I2C-bus I/O expanders.

Features

  • Separate supply rails for core logic and each of the two I/O banks provides voltage level shifting.
  • 1.1 V to 3.6 V operation with level shifting feature.
  • Very low standby current: < 2 μA.
  • 16 configurable I/O pins organized as 2 banks that default to inputs at power-up.
  • Outputs:.
  • Totem pole: 1 mA source and 3 mA sink.
  • Independently programmable 100 kΩ pull-up or pull-down for each I/O pin.
  • Open-drain active LOW interrupt (IN.

📥 Download Datasheet

Datasheet Details

Part number PCA9575
Manufacturer NXP Semiconductors
File Size 626.67 KB
Description low voltage GPIO
Datasheet download datasheet PCA9575 Datasheet

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Full PDF Text Transcription

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PCA9575 16-bit I2C-bus and SMBus, level translating, low voltage GPIO with reset and interrupt Rev. 5.0 — 31 May 2023 Product data sheet 1 General description The PCA9575 is a CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion in low voltage processor and handheld battery powered mobile applications and was developed to enhance the NXP family of I2C-bus I/O expanders. The improvements include lower supply current, lower operating voltage of 1.1 V to 3.6 V, separate supply rails to allow voltage level translation anywhere between 1.1 V and 3.6 V, 400 kHz clock frequency, and smaller packaging. Any of the 16 I/O ports can be configured as an input or output independent of each other and default on start-up to inputs.
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