PCA9557 1. General description The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications
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8-bit I2C-bus and SMBus I/O port with reset
PCA9557 1. General description The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications