Datasheet Details
| Part number | PCA9534A |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 2.15 MB |
| Description | Remote 8-BIT I2C and SMBus Low-Power I/O Expander |
| Datasheet |
 PCA9534A Datasheet
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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 PCA9534 See Device Comparison Table for I2C Expander offering.