USB2231/USB2232
5th Generation Hi-Speed
USB Flash Media and
CIR Controller with
Integrated Card Power
FETs
PRODUCT FEATURES
CIR Controller
■
Consumer IR (CIR) Controller with support for all
popular CIR formats.
Flash Media Controller
■
Complete System Solution for interfacing
SmartMedia
TM
(SM) or xD Picture Card
TM
(xD)
1
,
Memory Stick
TM
(MS), High Speed Memory Stick
(HSMS), Memory Stick PRO (MSPRO), MS Duo
TM
,
Secure Digital (SD), High Speed SD, Mini-Secure
Digital (Mini-SD), TransFlash (SD),
MultiMediaCard
TM
(MMC), Reduced Size
MultiMediaCard (RS-MMC), NAND Flash, Compact
Flash
TM
(CF) and CF Ultra
TM
I & II, and CF form-
factor ATA hard drives to Hi-Speed USB
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Datasheet
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12K Bytes of internal SRAM for general purpose
scratchpad
768 Bytes of internal SRAM for general purpose scratchpad
or program execution while re-flashing external ROM
Two, Double Buffered Bulk Endpoints
Two, Bi-directional 512 Byte Buffers for Bulk Endpoints
64 Byte RX Control Endpoint Buffer
64 Byte TX Control Endpoint Buffer
76K Byte Internal Code Space or Optional 128K Byte
External Code Space using Flash, SRAM or EPROM
memory.
Internal or External Program Memory Interface
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Supports USB Bulk Only Mass Storage Compliant Bootable
BIOS
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Support for simultaneous operation of all above
devices. (only one at a time of each of the following
groups supported: CF or ATA drive, SM or XD or
NAND, SD or MMC)
On-Chip 4-Bit High Speed Memory Stick and MS
PRO Hardware Circuitry
On-Chip firmware reads and writes High Speed
Memory Stick and MS PRO
1-bit ECC correction performed in hardware for
maximum efficiency
Hardware support for SD Security Command
Extensions
On-chip power FETs with short circuit protection for
supplying flash media card power
USB Bus Power Certified
3.3 Volt I/O with 5V input tolerance on VBUS/GPIO3
Complete USB Specification 2.0 Compatibility for Bus
Powered Operation
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Includes Hi-Speed USB Transceiver
A Bi-directional Control and two Bi-directional Bulk
Endpoints are provided.
Provides low speed control functions
30 Mhz execution speed at 1 clock per instruction cycle
average
On Board 24Mhz Crystal Driver Circuit
Can be clocked by 48MHz external source
On-Chip 1.8V Regulator for Low Power Core
Operation
Internal PLL for 480Mhz Hi-Speed USB Sampling,
Configurable MCU clock
Supports firmware upgrade via USB bus if “boot
block” Flash program memory is used
12 GPIOs for special function use: LED indicators,
button inputs, power control to memory devices, etc.
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Inputs capable of generating interrupts with either edge
sensitivity
Activity LED polarity/operation/blink rate
Full or Partial Card compliance checking
Bus or Self Powered
LUN configuration and assignment
Write Protect Polarity
SmartDetach
TM
- Detach from USB when no Card Inserted
for Notebook apps
Cover Switch operation for xD compliance
Inquiry Command operation
SD Write Protect operation
Older CF card support
Force USB 1.1 reporting
Internal or External Power FET operation
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Attribute bit controlled features:
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8051 8 bit microprocessor
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Compatible with Microsoft WinXP, WinME, Win2K
SP3, Apple OS10, Softconnex, and Linux Multi-LUN
Mass Storage Class Drivers
Win2K, Win98/98SE and Apple OS8.6 and OS9
Multi-LUN Mass Storage Class Drivers available from
SMSC
128 Pin TQFP Package (1.0mm height, 14mmx14mm
footprint); green, lead-free package also available.
1.xD Picture Card not applicable to USB2231
SMSC USB2231/USB2232
DATASHEET
Revision 1.3 (07-12-05)
5th Generation Hi-Speed USB Flash Media and CIR Controller with Integrated Card Power FETs
Datasheet
ORDER NUMBER(S):
USB2231/USB2232-NE-03 FOR 128 PIN, TQFP PACKAGE; USB2231/USB2232-NU-03 FOR 128 PIN, TQFP
PACKAGE (GREEN LEAD-FREE) PACKAGE
80 Arkay Drive
Hauppauge, NY 11788
(631) 435-6000
FAX (631) 273-3123
Copyright © 2005 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. SMSC is a
registered 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.
Revision 1.3 (07-12-05)
DATASHEET
2
SMSC USB2231/USB2232
5th Generation Hi-Speed USB Flash Media and CIR Controller with Integrated Card Power FETs
Datasheet
Table of Contents
Chapter 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 2 Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 3 Pin Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1
3.2
128-Pin Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
128-Pin List Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 5 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter 6 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1
6.2
PIN Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chapter 7 DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7.1
7.2
7.3
Maximum Guaranteed Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 8 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 9 GPIO Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SMSC USB2231/USB2232
DATASHEET
3
Revision 1.3 (07-12-05)
5th Generation Hi-Speed USB Flash Media and CIR Controller with Integrated Card Power FETs
Datasheet
List of Figures
Figure 5.1 USB2231/USB2232 128-Pin TQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8.1 USB2231/USB2232 128-Pin TQFP Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Revision 1.3 (07-12-05)
DATASHEET
4
SMSC USB2231/USB2232
5th Generation Hi-Speed USB Flash Media and CIR Controller with Integrated Card Power FETs
Datasheet
List of Tables
Table 3.1
Table 3.2
Table 6.1
Table 6.2
Table 8.1
Table 9.1
USB2231/USB2232 128-Pin Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
USB2231/USB2232 128-Pin TQFP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
USB2231/USB2232 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
USB2231/USB2232 Buffer Type Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
USB2231/USB2232 128-Pin TQFP Package Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
GPIO Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SMSC USB2231/USB2232
DATASHEET
5
Revision 1.3 (07-12-05)
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