FDC37M81 View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37M81

PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up

SMSC -> Microchip 

Note 5:

Note 6:

Note 7:

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.

Buffer Type Descriptions

I

IS

IOD16

IO24

IO4

O4

O24

OD24

IO8

ICLK

IO12

O12

OD12

O24PD

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 µA pull-down

9

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