FDC37M81 SMSC [SMSC Corporation], FDC37M81 Datasheet - Page 9

• Manufacturer Part Number: FDC37M81
• Description: PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up
• Manufacturer: SMSC [SMSC Corporation]

Note 5:
Note 6:
Note 7:
Buffer Type Descriptions
I
IS
IOD16
IO24
IO4
O4
O24
OD24
IO8
ICLK
IO12
O12
OD12
O24PD
Requires external pull-up resistor.
When SYSOPT function is used on nRTS1/SYSOPT pin, an external pulldown register is
required to put the base I/O address for configuration at 0x3F0. An external pullup resistor
is required to move the base I/O address for configuration to 0x370.
VTR can be connected to VCC if no wakeup functionality is required.
Input, TTL compatible
Input with Schmitt trigger
Input/Output, 16mA sink
Input/Output, 24mA sink, 12mA source
Input/Output, 4mA sink, 2mA source
Output, 4mA sink, 2mA source
Output, 24mA sink, 12mA source
Output, Open Drain, 24mA sink
Input/Output, 8mA sink, 4mA source
Clock Input
Input/Output, 12mA sink, 6mA source
Output, 12mA sink, 6mA source
Output, Open Drain, 12 mA sink
Output, 12mA sink, 6mA source with 30 A pull-down
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