FDC37C669 datasheet(3/164 Pages) SMSC

3 / 164 page

GENERAL DESCRIPTION

The SMSC FDC37C669 PC 95 Compatible Super

I/O Floppy Disk Controller with Infrared Support

utilizes SMSC's proven SuperCell technology for

increased product reliability and functionality. The

FDC37C669 is PC95 compliant and is optimized

for motherboard applications.

The FDC37C669

supports both 1 Mbps and 2 Mbps data rates and

vertical vertical recording operation at 1 Mbps

Data Rate.

The FDC37C669 incorporates

SMSC's

true

CMOS 765B floppy disk controller, advanced

digital data separator, 16 byte data FIFO, two

16C550

compatible

UARTs, one Multi-Mode

parallel port which includes ChiProtect circuitry

plus EPP and ECP support, IDE interface, on-chip

12 mA AT bus drivers, game port chip select 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.

Both on-chip UARTs are compatible with the

NS16C550.

One UART includes additional

support for a Serial Infrared Interface, complying

with

IrDA,

HPSIR,

and

ASKIR

formats (used by Sharp, Apple Newton, and other

PDAs). The parallel port, the IDE interface, and

the game port select logic are compatible with

IBM

PC/AT

architectures.

The

FDC37C669

incorporates sophisticated power control circuitry

(PCC).

The PCC supports multiple low power

down modes.

The

FDC37C669

Floppy

Disk

Controller

incorporates Software Configurable Logic (SCL)

for ease of use. Use of the SCL feature allows

programmable

system

configuration

key

functions such as the FDC, parallel port, and

UARTs.

The parallel port ChiProtect prevents

damage caused by the printer being powered

when the FDC37C669 is not powered.

The FDC37C669 does not require any external

filter components, and is, therefore easy to use

and offers lower system cost and reduced board

area. The FDC37C669 is software and register

compatible with SMSC's proprietary 82077AA

core.

FDC37C669 Folha de dados(PDF) 3 Page - SMSC Corporation

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