PCA9554D,118
by NXP(恩智浦)When a controller needs more digital connections over its I2C bus, NXP's PCA9554D,118 provides configurable I/O expansion. It suits control and status tasks such as reading switches or handling digital signals without dedicating a controller pin to every connection. The device's interrupt output can notify the host of input changes. Its KiCad library files are free to download and include a 16-pin symbol, the 16-pad SOP-16_L10.3-W7.5-P1.27-LS10.4-BL footprint, and a 3D model of the surface-mount package. A real ProtoFlow import was converted, then checked in the editor to verify the conversion. Open PCA9554D,118 directly in ProtoFlow when adding it to a project.
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