PCAL9555A 1. General description The PCAL9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander
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Low-voltage 16-bit I2C-bus GPIO with Agile I/O, interrupt and weak pull-up
PCAL9555A 1. General description The PCAL9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander