FDC37C665GT(1994) Ver la hoja de datos (PDF) - SMSC -> Microchip

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FDC37C665GT
(Rev.:1994)

High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers

SMSC -> Microchip 

PIN NO.

NAME

15,72 Power

6,47, Ground

67,95

DESCRIPTION OF PIN FUNCTIONS

BUFFER

SYMBOL TYPE

DESCRIPTION

VCC

+ 5 Volt supply pin.

GND

Ground pin.

Note 1: These active low open drain outputs select motor drives 0-3. In non-ECP modes, four drives

can be supported directly. These motor enable bits are controlled by software via the Digital

Output Register (DOR). In ECP mode, MTR0,1 can be used to directly support 2 drives or

can support 4 drives by using an external 2 to 4 decoder.

Note 2: Active low open drain outputs select drives 0-3. In non-ECP modes, four drives can be

supported directly. These drive select outputs are a decode of bits 0 and 1 of the Digital

Output Register and qualified by the appropriate Motor Enable Bit of the DOR (bits 4-7). In

ECP mode, DS0,1 can be used to directly support 2 drives or can support 4 drives by using

an external 2 to 4 decoder.

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