Datasheet Details
| Part number | TCA9539 |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 2.85 MB |
| Description | Low Voltage 16-Bit I2C and SMBUS Low-Power I/O Expander |
| Datasheet |
 TCA9539 Datasheet
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General Description
The TCA9539 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol).
The device can operate with a power supply voltage (VCC) range from 1.65 V to 5.5 V.
Key Features
- 1 I2C to Parallel Port Expander.
- Low Standby-Current Consumption.
- Open-Drain Active-Low Interrupt Output.
- Active-Low Reset Input.
- 5-V Tolerant I/O Ports.
- Compatible With Most Microcontrollers.
- 400-kHz Fast I2C Bus.
- Input and Output Configuration Register.
- Polarity Inversion Register.
- Internal Power-on Reset.
- No Glitch on Power Up.
- Noise Filter on SCL and SDA Inputs.
- Address by Two.