Datasheet Details
| Part number | NCA9555 |
|---|---|
| Manufacturer | Nexperia |
| File Size | 449.34 KB |
| Description | Low-voltage 16-bit I2C and SMBus I/O expander |
| Datasheet |
 NCA9555 Datasheet
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General Description
The NCA9555 provides 16 bits of General Purpose Input/Output (GPIO) expansion for I²C-bus/SMBus applications.
It is designed for a wide voltage range of 1.65 V to 5.5 V with interrupt and default pull-up resistors on GPIOs.
Key Features
- I²C-bus to parallel port expander.
- Operating power supply voltage range of 1.65 V to 5.5 V.
- Low standby current consumption:.
- 2.5 µA (maximum).
- Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs.
- Vhys = 0.10 × VCC (typical).
- Noise filter on SCL and SDA inputs.
- 5 V tolerant I/Os.
- 16 I/O pins which power up configured in input state with weak pull-up resi.