SMSC USB97C242 User Manual
USB97C242
USB 2.0 Flash Drive
Controller
Datasheet
Product Features
2.5 Volt, Low Power Core Operation
3.3 Volt I/O with 5V input tolerance
Complete USB Specification 2.0 Compatibility
− Includes USB 2.0 Transceiver
− A Bi-directional Control and a Bi-directional Bulk
Endpoint are provided.
Complete System Solution for interfacing
SmartMedia (SM), and NAND flash devices to
USB 2.0 bus
− Supports USB Bulk Only Mass Storage Compliant
Bootable BIOS
− Support for the following devices:
- SM: 2M –15MB/sec
- NAND Flash: 2M – 15MB/sec
− Built-in hardware 1-bit ECC support.
8051 8 bit microprocessor
− Provides low speed control functions
− 30 Mhz execution speed at 4 cycles per instruction
average
− 12K Bytes of internal SRAM for general purpose
scratchpad
− 768 Bytes of internal SRAM for general purpose
scratchpad or program execution with external flash
Double Buffered Bulk Endpoint
− Bi-directional 512 Byte Buffer for Bulk Endpoint
− 64 Byte RX Control Endpoint Buffer
− 64 Byte TX Control Endpoint Buffer
Internal or External Program Memory Interface
− 48K Byte Internal Code Space or optional 64K Byte
External Code Space using Flash, SRAM, or
EPROM memory.
On Board 12Mhz Crystal Driver Circuit
Internal PLL for 480Mhz USB2.0 Sampling,
30Mhz MCU clock
Supports firmware upgrade via USB bus if sector-
erasable Flash program memory is used
7 GPIOs for special function use: LED indicators,
button inputs, power control to memory devices,
etc.
− Inputs capable of generating interrupts with either
edge sensitivity
100 Pin TQFP (12x12x1.4 body) Lead-Free
RoHS Compliant Package also available
ORDERING INFORMATION
Order Number(s):
USB97C242-MN-xx for 100 pin TQFP package
USB97C242-MV-04 for 100 pin TQFP Lead-Free RoHS Compliant Package
SMSC USB97C242 Page 1 Revision 1.4 (05-03-07)
DATASHEET
USB 2.0 Flash Drive Controller
Datasheet
80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123
Copyright © 2007 SMSC or its subsidiaries. All rights reserved.
Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete
information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no
responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without
notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information
does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of
SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's
standard Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or
errors known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon
request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure
could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC
and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms
of Sale Agreement, may be obtained by visiting SMSC’s website at http://www.smsc.com. SMS C is a re gis te red trademark of Standard Microsystems
Corporation (“SMSC”). Product names and company names are the trademarks of their respective holders.
SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND
ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE. IN NO EVENT SHALL SMSC BE LIABLE FOR ANY
DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES; OR FOR LOST DATA, PROFITS, SAVINGS OR
REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON CONTRACT; TORT; NEGLIGENCE OF SMSC
OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR NOT ANY REMEDY OF BUYER IS HELD TO
HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
SMSC USB97C242 Page 2 Revision 1.4 (05-03-07)
DATASHEET
USB 2.0 Flash Drive Controller
Datasheet
USB97C242 Revision History
PAGE(S) SECTION/FIGURE/ENTRY CORRECTION DATE REVISED
1 Cover Added lead-free ordering information Rev. 1.4
02-16-06
5 Chapter 1 – General Description First bullet modified under the
following section:
Internal program code provides the
following features:
Support for 1 to 8, 128Mb through
2Gb, 512byte and 2048 byte page
size, 8bit parallel NAND flash
memories, including multiple
memory aggregates in multi-chipmodules (MCM) up to 8, 2Gb
devices (ie 16Gb), as long as
individual memory device Chip
Enables are pinned out in the
MCM.
16 Table 7.1 - DC Electrical Characteristics Updated High Input Leakage units. Rev. 1.2
5 Chapter 1 - General Description Revised list of object code software
and licenses; internal program code
features
8 Chapter 3 - Pin TablesTable 3.1 –
USB97C242 100 Pin Package
10 Figure 4.1 – 100 Pin TQFP Diagram updated, new pin names Rev. 1.1
12 Table 6.1 – USB97C242 Pin
Descriptions
22 Table 11.1 - GPIO Usage Updated table Rev. 1.1
23 Chapter 12 - Typical Application Typical application diagram deleted Rev. 1.1
Updated tables Rev. 1.1
Updated misc pin section Rev. 1.1
Rev. 1.3
07-08-04
11-05-03
Rev. 1.1
04-03-03
04-03-03
04-03-03
04-03-03
04-03-03
04-03-03
SMSC USB97C242 Page 3 Revision 1.4 (05-03-07)
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USB 2.0 Flash Drive Controller
Datasheet
TABLE OF CONTENTS
REVISION HISTORY.....................................................................................................................................................2
CHAPTER 1 GENERAL DESCRIPTION...................................................................................................................5
CHAPTER 2 ACRONYMS & DEFINITION ................................................................................................................7
2.1 Acronyms.........................................................................................................................................................7
CHAPTER 3 PIN TABLES.........................................................................................................................................8
3.1 100 Pin List......................................................................................................................................................8
CHAPTER 4 PIN CONFIGURATION.......................................................................................................................10
CHAPTER 5 BLOCK DIAGRAM.............................................................................................................................11
CHAPTER 6 PIN DESCRIPTIONS..........................................................................................................................12
6.1 Buffer Type Descriptions................................................................................................................................15
CHAPTER 7 DC PARAMETERS.............................................................................................................................16
7.1 Maximum Guaranteed Ratings ......................................................................................................................16
7.1.1 Capacitance TA = 25°C; FC = 1MHz; VDD, VDDP = 2.5V.....................................................................18
CHAPTER 8 AC SPECIFICATIONS........................................................................................................................19
CHAPTER 9 PACKAGE OUTLINE..........................................................................................................................20
CHAPTER 10 REFERENCE ..................................................................................................................................21
CHAPTER 11 GPIO USAGE TABLE.....................................................................................................................22
CHAPTER 12 TYPICAL APPLICATION................................................................................................................23
LIST OF FIGURES
Figure 4.1 – 100 Pin TQFP ..........................................................................................................................................10
Figure 9.1 – 100 Pin TQFP Package Outline, 12x12x1.4 Body (Rev A).......................................................................20
LIST OF TABLES
Table 3.1 – USB97C242 100 Pin Package ....................................................................................................................8
Table 3.2 – 100 Pin TQFP .............................................................................................................................................8
Table 6.1 – USB97C242 Pin Descriptions....................................................................................................................12
Table 6.2 - USB97C242 Buffer Type Descriptions .......................................................................................................15
Table 7.1 - DC Electrical Characteris t i cs.......................................................................................................................16
Table 9.1 – 100 Pin TQFP Package Parameters (Rev A)............................................................................................20
Table 11.1 - GPIO Usage.............................................................................................................................................22
SMSC USB97C242 Page 4 Revision 1.4 (05-03-07)
DATASHEET
USB 2.0 Flash Drive Controller
Datasheet
Chapter 1 General Description
The USB97C242 is a USB2.0 Bulk Only Mass Storage Class Peripheral Controller intended for supporting
SmartMedia (SM), and NAND flash memory devices. It provides a single chip USB reader solution for the
SM and NAND flash devices in the market*.
The device consists of a USB 2.0 PHY and SIE, buffers, Fast 8051 microprocessor with expanded
scratchpad, and program SRAM, 48KB program ROM and SM controller.
Provisions for optional external Flash Memory up to 64K bytes for program storage is provided.
12K bytes of scratchpad SRAM and 768Bytes of scratchpad SRAM are also provided.
Seven GPIO pins are for the 100-pin device. Provisions are made to allow dynamic attach and re-attach to
the USB bus to allow hot swap of flash media to be implemented.
SMSC provides the following object code software and licenses free of charge with purchase of the
USB97C242**:
Windows 98 Mass Storage Class driver.
Windows application for programming VID/PID/OEM strings, and unique serial number into serial
EEPROM (SM reader) or NAND Flash via USB.
Production test and format utilities
Password protection API and example applet.
Firmware with field upgrade capability via USB (requires external specific model 128KB Flash for
firmware storage).
The Internal program code provides the following features:
Support for 1 to 8, 128Mb through 2Gb, 512byte and 2048 byte page size, 8bit parallel NAND flash
memories, including multiple memory aggregates in multi-chip-modules (MCM) up to 8, 2Gb devices
(ie 16Gb), as long as individual memory device Chip Enables are pinned out in the MCM.
Autodetection of NAND Flash memory type and capacity
Supports write protect switch
Wear leveling
Internal VID/PID/Serial Number/OEM String storage in NAND flash itself, eliminating need for external
serial EEPROM
High performance transfers (interleaving, copy block caching, etc.)
Drive password protection
SMSC may make complete internal specifications available for those customers requiring programming
information, subject to SMSC’s applicable Proprietary Information Agreement (nondisclosure agreement).
Contact your SMSC sales representative for more information.**
SMSC USB97C242 Page 5 Revision 1.4 (05-03-07)
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USB 2.0 Flash Drive Controller
Datasheet
Note:
* In order to develop, make, use, or sell readers and/or other products using or incorporating any of the
SMSC devices made the subject of this document or to use related SMSC software programs, technical
information and licenses under patent and other intellectual property rights from or through various persons
or entities, including without limitation media standard companies, forums, and associations, and other
patent holders may be required. These media standard companies, forums, and associations include
without limitation the following: Sony Corporation (Memory Stick), SD3 LLC (Secure
Digital/MultiMediaCard), the SSFDC Forum (SmartMedia), and the Compact Flash Association (Compact
Flash). SMSC does not make such licenses or technical information available; does not promise or
represent that any such licenses or technical information will actually be obtainable from or through the
various persons or entities (including the media standard companies, forums, and associations), or with
respect to the terms under which they may be made available; and is not responsible for the accuracy or
sufficiency of, or otherwise with respect to, any such technical information.
SMSC's obligations (if any) under the Terms of Sale Agreement, or any other agreement with any
customer, or otherwise, with respect to infringement, including without limitation any obligations to defend
or settle claims, to reimburse for costs, or to pay damages, shall not apply to any of the devices made the
subject of this document or any software programs related to any of such devices, or to any combinations
involving any of them, with respect to infringement or claimed infringement of any existing or future patents
related to solid state disk or other flash memory technology or applications (“Solid State Disk Patents”). By
making any purchase of any of the devices made the subject of this document, the customer represents,
warrants, and agrees that it has obtained all necessary licenses under then-existing Solid State Disk
Patents for the manufacture, use and sale of solid state disk and other flash memory products and that the
customer will timely obtain at no cost or expense to SMSC all necessary licenses under Solid State Disk
Patents; that the manufacture and testing by or for SMSC of the units of any of the devices made the
subject of this document which may be sold to the customer, and any sale by SMSC of such units to the
customer, are valid exercises of the customer’s rights and licenses under such Solid State Disk Patents;
that SMSC shall have no obligation for royalties or otherwise under any Solid State Disk Patents by reason
of any such manufacture, use, or sale of such units; and that SMSC shall have no obligation for any costs
or expenses related to the customer’s obtaining or having obtained rights or licenses under any Solid State
Disk Patents.
SMSC MAKES NO WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, IN REGARD TO
INFRINGEMENT OR OTHER VIOLATION OF INTELLECTUAL PROPERTY RIGHTS. SMSC
DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES AGAINST INFRINGEMENT AND THE LIKE.
No license is granted by SMSC expressly, by implication, by estoppel or otherwise, under any patent,
trademark, copyright, mask work right, trade secret, or other intellectual property right.
**To obtain this software program the appropriate SMSC Software License Agreement must be executed
and in effect. Forms of these Software License Agreements may be obtained by contacting SMSC.
SMSC USB97C242 Page 6 Revision 1.4 (05-03-07)
DATASHEET
USB 2.0 Flash Drive Controller
Datasheet
Chapter 2 Acronyms & Definition
2.1 Acronyms
SM: SmartMedia
SMC: SmartMedia Controller
FM: Flash Media
FMC: Flash Media Controller
ECC: Error Checking and Correcting
CRC: Cyclic Redundancy Checking
SMSC USB97C242 Page 7 Revision 1.4 (05-03-07)
DATASHEET
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