General Description
	Data Sheet, Application Notes, Drivers and Design Tools

Features

	3.3 Volt, Low Power Operation
	Complete USB Specification 1.1 Compatibility Includes USB Transceiver Based on an Enhanced Version of SMSC's Industry Proven USB97C100 USB Controller
	Complete System Solution Including USB Mass Storage Class Compliant Win98/2000 Driver and Firmware Supports 640K, 720K, 1.44M, 1.2M Windows 98 J, and 1.2M NEC DOS 6.x Formats Supports Both the UFI and SFF8070i Command Sets Supports USB Mass Storage Compliant Bootable Floppy BIOS 4ms Seek Times USB 1.1 Compliance, Including Low Power Device Class SUSPEND Mode Operation and Power Control of Disk Drive Disk Drive Feedback of Readiness Upon Power Re-Application Option Option for Ultra High Performance Using Additional Caching SRAM Support for Floppy Drive Power Control
	Contains SMSC's Industry Proven Floppy Disk Controller Licensed CMOS 765B Floppy Disk Controller Supports Single Normal or Three Mode Floppy Drives Supports Vertical Recording Format and High Capacity Drives in User Written Firmware Applications Detects All Overrun and Underrun Conditions Sophisticated Power Control Circuitry (PCC) Including Multiple Powerdown Modes for Reduced Power Consumption
	Enhanced Digital Data Separator 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps Data Rates Programmable Precompensation Modes
	Intelligent Auto Power Management <250uA SUSPEND Current <75mA Operating Current
	Integrated 32Kbyte Program ROM Uses External 3 Wire Serial EEPROM Provides Storage for Unique OEM Identification and String Descriptors and Drive Options Settings Ten Options for Various Drive Parameters Are Externally Selectable Via Serial EEPROM Data
	Optional External Program Memory Interface for Custom Applications 32K Byte Code Space Flash, SRAM, or EPROM Memory
	4KB Internal Buffer SRAM for High Performance Operation
	Integrated 14.318 MHz Crystal Driver Circuit
	100 Pin TQFP Lead-Free RoHS Compliant Package (12.0 x 12.0 mm Body) 25% Smaller than Other 100 Pin TQFP Packages

General Description

The USB97CFDC2-01 is an integration of an Enhanced Multi-Endpoint USB 1.1 Peripheral Controller, a 32K Byte Program ROM, and the SMSC Floppy Disk Controller used in many of its Super I/O products, such as the FDC37C869. Special care in the design has been taken to assure the lowest possible system current draw (<250uA) during SUSPEND mode operation.

Provision for external Flash Memory up to 32K Bytes for program storage is provided for customized applications.

Several pins are provided for controlling external power control elements and sensing specialized drive functions. Individual manufacturers may provide their unique USB vendor and product IDs and descriptor strings via an external 3 wire serial EEPROM. Up to 16 different configuration options for various drive related parameters are provided by four external configuration input pins which can be read at power-on reset.

USB97CFDC2-01 Data Sheet, Application
Notes, Drivers and Design Tools

Description	File Name	File Size	Date
USB97CFDC2-01 Data Sheet	97cfdc2_01.pdf	162K	2/27/07
Reference Designs	Contact your local SMSC representative
Evaluation/Demonstration Boards	Contact your local SMSC representative
Application Note
Application Note 11-19: Migrating the USB97CFDC to the USB97CFDC2	an1119.pdf	150K	7/7/04
Using the Adobe® Acrobat® Reader	aacrobat.html