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https://www.digikey.ca/en/products/detail/microchip-technology/MCP23008-E-P/735951 (through hole)
https://www.digikey.ca/en/products/detail/nxp-usa-inc/PCF8574ATSPCF8574T-3-118518/812958735691(100KHz)
https://www.digikey.ca/en/products/detail/nxp-usa-inc/PCF8574ATS-3/PCA8574D-518/1692859(400KHz)
https://www.digikey.ca/en/products/detail/nxp-usa-inc/PCA9674APW-118/8129581301000(400KHz1MHz)
IC REMOTE THERMAL CTLR 24QSOP (Fan Controller)
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