Super IO /SIO (Super input/output) is an integrated circuit in shape of a chip mostly (128 pins) on a computer motherboard.
There are various brands of SIO e.g. ITE, SMSC, NUVOTON, ENE, LENOVO, AND WINBOND ETC.

IO chip is the third major chip on a computer motherboard after CPU AND PCH. IO is the main controller IC of Laptop Motherboard.

For each brand and each model of SIO schematics are different. Here you will find different kinds of IO pinout datasheets which are taken out from laptop schematic

IF you cannot find a specific kind of SIO pinouts datasheet please feel free to leave a comment and let us know (which kind of SIO datasheet you are looking for?), We will be glad to reply you as soon as possible.
Part Number: WPCE773
Manufacturer: Winbond Electronics

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