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PCA9536 Datasheet Remote 4-Bit I2C and SMBus I/O Expander

Manufacturer: Texas Instruments

General Description

This 4-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation.

It provides general-purpose remote I/O expansion for most microcontroller families through the I2C interface [serial clock (SCL), serial data (SDA)].

The PCA9536

Overview

PCA9536 SCPS125H – APRIL 2006 – REVISED MARCH 2022 PCA9536 Remote 4-Bit I2C and SMBus I/O Expander with Configuration Registers.

Key Features

  • Available in the Texas Instruments NanoFree™ Package.
  • Low standby current consumption of 1 μA Max.
  • I2C to parallel port expander.
  • Operating power-supply voltage range of 2.3 V to 5.5 V.
  • 5-V Tolerant I/O ports.
  • 400-kHz fast I2C bus.
  • Input and output configuration register.
  • Polarity inversion register.
  • Internal power-on reset.
  • No glitch on power up.
  • Power-up with all channels configured as inputs.