Description
Features
- I2C to 16-bit I/O ports expander
- 1MHz Fast-mode Plus I2C bus
- Operating voltage range of 1.65V to 5.5V for both I2C bus and I/O ports
- Four adjustable I2C slave addresses via ADDR
- I2C multiple-register group programming with global loop or local loop
- Active low reset input (RESET)
- Active low open-drain interrupt output (INT)
- Internal power-on reset and I2C software reset
- Noise filter on SCL/SDA inputs
- Input/Output port configurable
- Input with polarity/latch/pull-up/pull-down/ interrupt functions
- Allowing port input voltage above supply
- Interrupt with trigger/mask/clear/status features
- Programmable input debounce enable/time
- Output with bank/pin selectable push-pull or open-drain
- Bit-wise programmable output drive strength
- Low standby current of 4µA typical at 3.3V
- Maximum 25mA driving capability for each port
- 25-ball 2.0mm x 2.0mm FO-WLP package and 24-pin 4.0mm x 4.0mm TQFN package.
Key Electrical Specifications
| Vin(Min) | Vin(Max) | Max. Drive Current per Channels (mA) | Number of I/O | Interrupt Out | Addresses | Operating Temperature | Package |
| 1.65V | 5.5V | 25mA | 16 | Yes | Four | -40°C  to 85°C | FO-WLP55-25 Alternate TQFN44-24 |
Typical Application Diagram
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