FDC37C78 datasheet(3/82 Pages) MICROCHIP

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GENERAL DESCRIPTION

The SMSC FDC37C78 Floppy Disk Controller

utilizes SMSC's proven SuperCell technology

for increased product reliability and functionality.

The

FDC37C78

optimized

for

motherboard

applications.

The FDC37C78 supports both 1

Mbps and 2 Mbps data rates and vertical vertical

recording operation at 1 Mbps Data Rate.

The FDC37C78 incorporates SMSC's true CMOS

765B floppy disk controller, advanced digital data

separator, 16 byte data FIFO, on-chip 12 mA bus

drivers and two floppy direct drive support.

The

true

CMOS

765B

core

provides

100%

compatibility

with

IBM

PC/XT

and

PC/AT

architectures in addition to providing data overflow

and underflow protection. The SMSC advanced

digital

data

separator

incorporates

SMSC's

patented data separator technology, allowing for

ease of testing and use.

The FDC37C78 incorporates sophisticated power

control circuitry (PCC).

The PCC supports

multiple low power down modes.

The

FDC37C78

Floppy

Disk

Controller

incorporates Software Configurable Logic (SCL)

for ease of use. Use of the SCL feature allows

programmable

system

configuration

key

functions of FDC

The FDC37C78 does not require any external

filter components, and is, therefore easy to use

and offers lower system cost and reduced board

area.

The FDC37C78 is software and register

compatible with SMSC's proprietary 82077AA

core.

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