NS PC97338

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NS PC87338/PC97338

This is a National Semiconductor SuperIO chip

Note: National Semiconductor sold the SuperIO product line to Winbond Electronics


  • Serial (16550A compatible)
  • Parallel (IEEE P1284-A, EPP, ECP, bidirectional)
  • Floppy
  • IrDA 1.1
  • PS/2 keyboard/mouse

Linux support

This chipset is supported by recent 2.4 and 2.6 kernels

IrDA function is not enabled on the X20, X21 or any i Series ThinkPads other than the i1720/1721



ThinkPads this chip may be found in