| Part Number | PCA9555A |
| Manufacturer | NXP (https://www.nxp.com/) |
| Title | Low-voltage 16-bit I2C-bus I/O port |
| Description | The PCA9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors for I2C-bus/SMBus appl... |
| Features |
See the respective data sheet for more details.
The PCA9555A open-drain interrupt (INT) output is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input stat...
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| Datasheet |
 PCA9555A Datasheet
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