FDC37C669-MT View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37C669-MT

PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support

SMSC -> Microchip 

QFP/

TQFP

PIN NO.

NAME

6,47, Ground

67,95

DESCRIPTION OF PIN FUNCTIONS

SYMBOL

GND

BUFFER

TYPE

DESCRIPTION

Ground Supply.

Note 1: Refer to Configuration Register 00 for information on the pull-ups for these pins!

Note IDE does not decode for 377, 3F7

Note RI and the Serial interrupt is always active if system power is applied to the chip.

BUFFER TYPE DESCRIPTIONS

BUFFER TYPE

I/O24

O24

OD48

O4

OD24

OD24P

OP24

024P

OCLK

ICLK

I

IS

DESCRIPTION

Input/Output. 24 mA sink; 12 mA source

Output. 24 mA sink; 12 mA source

Open drain. 48 mA sink

Output. 4 mA sink; 2 mA source

Output. 24 mA sink

Open drain. 24 mA sink; 30μA source

Output. 24 mA sink; 4 mA source

Output. 24 mA sink; 12 mA source; with 30μA pull-up

Output to external crystal

Input to Crystal Oscillator Circuit (CMOS levels)

Input TTL compatible.

Input with Schmitt Trigger.

15

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