2 layers100 × 50 mm

Boards in 1 GitHub repository, designed in KiCad, that use the PCA9554DB by NXP Semiconductors (-40℃~+85℃ 2.3V~5.5V 24mA 250nA 4.1V 400kHz 700mV 8 8 I2C、SMBus Interrupt Output Reset function、Cascading and address extension SSOP-16-208mil I/O Expanders ROHS). See how each wires it, with its parts, size, README and files; the PCA9554DB’s symbol, footprint and pinout are on its own page.
