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PCA9534 - Remote 8-Bit I2C and SMBus Low-Power I/O Expander

General Description

This 8-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 via the I2C interface [serial clock (SCL), serial data (SDA)].

Key Features

  • 1 Low Standby Current Consumption of 1 μA Max.
  • I2C to Parallel Port Expander.
  • Open-Drain Active-Low Interrupt Output.
  • Operating Power-Supply Voltage Range of 2.3 V to 5.5 V.
  • 5-V Tolerant I/O Ports.
  • 400-kHz Fast I2C Bus.
  • Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus.
  • Allows Up to 16 Devices on the I2C/SMBus When Used in Conjunction with the PCA9534A See Device Comparison Table for I2C Expander offerin.

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Other Datasheets by Texas Instruments

Part Number Description
PCA9534A Remote 8-BIT I2C and SMBus Low-Power I/O Expander
PCA9535 Remote 16-BIT I2C and SMBus Low-Power I/O Expander
PCA9536 Remote 4-Bit I2C and SMBus I/O Expander
PCA95380 Remote 8-Bit I2C AND SMBus Low-power I/O Expander
PCA9539 Remote 16-Bit I2C and SMBus Low-Power I/O Expander

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community PCA9534 SCPS124G – SEPTEMBER 2006 – REVISED JUNE 2014 PCA9534 Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers 1 Features •1 Low Standby Current Consumption of 1 μA Max • I2C to Parallel Port Expander • Open-Drain Active-Low Interrupt Output • Operating Power-Supply Voltage Range of 2.3 V to 5.