NXP PCA8574APW,112 输入/输出扩展, 8bit, 400 kHz, I2C, 2.3 V, 5.5 V, TSSOP
The is a remote 8-bit I/O Expander for I²C-bus with interrupt and provides general-purpose remote I/O expansion via the Two-Wire bi-directional I²C-bus serial clock SCL, serial data SDA. This expander has eight quasi-bi-directional ports, 400kHz I²C-bus interface, three hardware address inputs and interrupt output operating between 2.3 and 5.5V. The quasi-bi-directional port can be independently assigned as an input to monitor interrupt status or keypads or as an output to activate indicator devices such as LEDs. The system master can read from the input port or write to the output port through a single register.
ESD sensitive device, take proper precaution while handling the device.
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