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    STMPE801

    Abstract: AN2466 keypad matrix
    Text: AN2466 Application note STMPE801 - Hardware Interface guide Introduction STMPE801 is an eight-bit port expander that can be interfaced to the main digital ASIC or processor via the two-line bidirectional I2C bus. The digital engines in mobile multimedia platforms usually come with a limited number of I/Os. The port expander ICs can be used to


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