USB2244-AEZG-05 SMSC, USB2244-AEZG-05 Datasheet

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USB2244-AEZG-05

Manufacturer Part Number
USB2244-AEZG-05
Description
USB Interface IC Ultra Fast USB 2.0 Flash Media CTRL
Manufacturer
SMSC
Datasheet

Specifications of USB2244-AEZG-05

Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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PRODUCT FEATURES
General Description
The SMSC USB224x is a USB 2.0 compliant, Hi-Speed
bulk only
for reading and writing to popular flash media from the xD-
Picture Card
(SD), and MultiMediaCard
The SMSC USB224x is a fully integrated, single chip
solution capable of ultra high performance operation.
Average sustained transfer rates exceeding 35 MB/s are
possible if the media and host can support those rates. The
USB2244/44i includes provisions to read/write secure
media formats.
General Features
Hardware Features
1.Bulk only is not applicable to USB2240/40i/41/41i.
2.xD-Picture Card is not applicable to USB2241/41i.
SMSC USB224x
Low pin count 36-pin QFN (6x6 mm) lead-free RoHS
USB2240/40i/41/41i
Hardware-controlled data flow architecture for all self-
Pipelined hardware support for access to non-self-
Order number with “i” denote the products that support
Support included for secure media format on a licensed,
Single chip flash media controller with
SDIO and MMC Streaming Mode support
Extended configuration options
Media Activity LED
compliant package
— Targeted for applications in which single or "combo"
mapped media
mapped media
the industrial temperature range of -40ºC to 85ºC
customized basis
— USB2244/44i: SD Secure
— USB2242/42i: Sony MagicGate
— USB2240/40i/41/4i: multiplexed interface for use with
— USB2242/42i: MS flash media reader/writer
— USB2244/44i: SD/MMC flash media reader/writer
— xD player mode operation
— Socket switch polarities, etc.
media sockets are used
“combo” card sockets
1
mass storage class peripheral controller intended
TM
(xD)
2
, Memory Stick
TM
(MMC) families.
®
TM
(MS), Secure Digital
DATASHEET
Flash Media Specification Compliance
Software Features
Applications
3.Only applicable to USB2240/40i/41/41i.
GPIO configuration and polarity
On board 24 MHz crystal driver circuit
Optional external 24 MHz clock input
Internal card power FET
8051 8-bit microprocessor
Supports a single external 3.3 V supply source; internal
Optimized pinout improves signal routing which eases
Secure Digital 2.0
MultiMediaCard 4.2
Memory Stick Formats
xD-Picture Card 1.2
Customizable vendor specific data
Optimized for low latency interrupt handling
Reduced memory footprint
Flash media card reader/writers
Desktop and mobile PCs
Printers
Consumer A/V and media players/viewers
Compatible with
— Up to 8 GPIOs for special function use
— One GPIO with up to 200 mA drive
— 200 mA
— "Fold-back" short circuit protection
— 60 MHz - single cycle execution
— 64 KB ROM | 14 KB RAM
regulators provide 1.8 V internal core voltage for
additional bill of materials and power savings
implementation for improved signal integrity
— HS-SD, SDHC
— TransFlash
— 1/4/8-bit MMC
— MS 1.43, Pro 1.02, Duo 1.10
— Pro-HG Duo 1.01
Ultra Fast USB 2.0 Multi-
Format, SD/MMC, and MS
Flash Media Controllers
USB224x
– MS, MS Duo, HS-MS, MS Pro-HG, MS Pro
– Microsoft
– Windows
– Apple Mac OSx
– Linux Mass Storage Class Drivers
TM
®
®
and reduced form factor media
Vista
XP, ME, 2K SP4
®
TM
and Vista ReadyBoost
Revision 2.0 (10-14-09)
3
Datasheet
TM

Related parts for USB2244-AEZG-05

USB2244-AEZG-05 Summary of contents

Page 1

... The SMSC USB224x is a fully integrated, single chip solution capable of ultra high performance operation. Average sustained transfer rates exceeding 35 MB/s are possible if the media and host can support those rates. The USB2244/44i includes provisions to read/write secure media formats. General Features Low pin count 36-pin QFN (6x6 mm) lead-free RoHS ...

Page 2

... USB2242-AEZG-XX USB2242i-AEZG-XX USB2244-AEZG-XX USB2244i-AEZG-XX “XX” in the order number indicates the internal ROM firmware revision level. Please contact your SMSC sales representative for more information. This product meets the halogen maximum concentration values per IEC61249-2-21 For RoHS compliance and environmental information, please visit 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © ...

Page 3

... External Hardware RESET_N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 7.3.2 USB Bus Reset Chapter 8 Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 8.1 USB2240/40i/41/41i Pin Reset States 8.2 USB2242/42i Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 8.3 USB2244/44i Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Chapter 9 DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 9.1 Maximum Guaranteed Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 9.2 Operating Conditions 9.3 DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 9.4 Capacitance ...

Page 4

... Table 8.1 Legend for Pin Reset States Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 8.2 USB2240/40i/41/41i 36-Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 8.3 USB2242/42i 36-Pin Reset States Table 8.4 USB2244/USB2244i 36-Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Table 9.1 Pin Capacitance Table 9.2 36-Pin QFN Package Thermal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Table 10.1 Crystal Circuit Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Table 11 ...

Page 5

... Figure 4.1 USB2240/USB2240i 36-Pin QFN Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 4.2 USB2241/USB2241i 36-Pin QFN Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 4.3 USB2242/USB2242i 36-Pin QFN Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 4.4 USB2244/USB2244i 36-Pin QFN Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 7.1 RESET_N Timing for EEPROM Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Figure 8.1 Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Figure 9.1 Supply Rise Time Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Figure 10 ...

Page 6

... Single chip flash media controller in low pin count 36-pin QFN, lead-free RoHS compliant package Commercial temperature products support 0°C to +70°C: USB2240/41, USB2242 and USB2244 Industrial temperature products support -40°C to +85°C: USB2240i/41i, USB2242i and USB2244i GPIOs - Configuration and polarity for special function use such as LED indicators, button inputs, and ...

Page 7

... SMSC Software License Agreement must be executed and in effect. Forms of these Software License Agreements may be obtained by contacting SMSC. 1.MMC, SDIO, and SDC are not applicable to USB2242/42i. 2.Not applicable to USB2244/44i. SMSC USB224x 1 2 ...

Page 8

... PROC FMI BUS FMDU INTFC CTL EP0 TX EP0 RX BUS RAM INTFC EP1 RX EP1 TX EP2 RX EP2 TX XDATA BRIDGE + BUS ARBITER Program Memory I/O Bus SFR 8051 RAM PROCESSOR 8 DATASHEET Datasheet SD/ MMC Multiplexed MS Interface xD* 4K total PWR_FET1 GPIO10 / CRD_PWR GPIOs 8 pins SMSC USB224x ...

Page 9

... V 1.8 V Reg VDD18 24 MHz Crystal PLL VDD18PLL 3.3 V 1.8 V Reg RAM 10 KB ADDR MAP ROM 64 KB Clock Generation and Control SMSC USB224x AUTO_CBW PROC FMI BUS FMDU INTFC CTL EP0 TX EP0 RX BUS RAM INTFC EP1 RX EP1 TX EP2 RX EP2 TX XDATA BRIDGE ...

Page 10

... INTFC CTL EP0 TX EP0 RX BUS RAM INTFC EP1 RX EP1 TX EP2 RX EP2 TX XDATA BRIDGE + BUS ARBITER Program Memory I/O Bus SFR 8051 RAM PROCESSOR Figure 3.3 USB2244/44i Block Diagram 10 DATASHEET Datasheet SD/ Media MMC Interface 4K total PWR_FET1 GPIO10 / CRD_PWR GPIOs 7 pins SMSC USB224x ...

Page 11

... Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers Datasheet Chapter 4 Pin Configurations TEST GPIO4 xD_D4 / GPIO6 (SD_WP) / MS_SCLK GPIO7 / TXD / SCK / MS_SKT_SEL XTAL2 XTAL1 (CLKIN) VDD18PLL RBIAS VDDA33 Figure 4.1 USB2240/USB2240i 36-Pin QFN Diagram SMSC USB224x SMSC 31 15 USB2240/2240i 32 14 ...

Page 12

... Revision 2.0 (10-14-09) Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers SMSC 31 15 USB2241/2241i 32 14 (Top View QFN-36 Ground Pad 35 11 (must be connected to VSS Indicates pins on the bottom of the device. 12 DATASHEET Datasheet RESET_N VDD33 VDD18 NC SD_CMD / MS_D0 SD_D5 / MS_D1 SMSC USB224x ...

Page 13

... Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers Datasheet TEST GPIO4 MS _SCLK GPIO7 / TXD / SCK / MS_SKT_SEL XTAL2 XTAL1 (CLKIN) VDD18PLL RBIAS VDDA33 Figure 4.3 USB2242/USB2242i 36-Pin QFN Diagram SMSC USB224x SMSC 31 15 USB2242/2242i 32 14 (Top View QFN-36 Ground Pad ...

Page 14

... TEST GPIO4 SD _WP GPIO7 / TXD / SCK XTAL2 XTAL1 (CLKIN) VDD18PLL RBIAS VDDA33 Figure 4.4 USB2244/USB2244i 36-Pin QFN Diagram Revision 2.0 (10-14-09) Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers SMSC 31 15 USB2244/2244i 32 14 (Top View QFN-36 Ground Pad 35 11 ...

Page 15

... MS_BS xD_D6 / SD_D3 / xD_D5 / SD_D2 MS_D3 xD_D4 / GPIO6 (SD_WP) / MS_SCLK GPIO14 (xD_nCD) GPIO15 (SD_nCD) USB+ RBIAS GPIO1 (LED) GPIO10 (CRD_PWR) (3) VDD33 SMSC USB224x xD/SD/MS INTERFACE (18 PINS) xD_D2 / xD_D1 / SD_D0 / SD_D7 / MS_D4 MS_D6 xD_ALE / xD_CLE / SD_D5 / SD_CMD / MS_D1 MS_D0 xD_nRE xD_nB/R xD_nCE ...

Page 16

... SD_D2 (SD_WP) / MS_SCLK USB INTERFACE (5 PINS) USB- XTAL1 (CLKIN) MISC (11 Pins) GPIO2 / RXD / GPIO4 SDA TEST RESET_N DIGITAL, POWER (6 PINS) VDDA33 VDD18 TOTAL 36 16 DATASHEET Datasheet SD_D6 / MS_D7 SD_D4 / MS_D2 GPIO12 (MS_INS) XTAL2 GPIO7 / TXD / SCK / MS_SKT_SEL (4) NC VDD18PLL SMSC USB224x ...

Page 17

... Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers Datasheet Table 5.3 USB2242/2242i 36-Pin QFN Package MS_D0 MS_D4 MS_BS USB+ RBIAS GPIO1 (LED) GPIO10 (CRD_PWR) TEST (3) VDD33 SMSC USB224x MS INTERFACE (11 PINS) MS_D1 MS_D2 MS_D5 MS_D6 MS_SCLK GPIO12 (MS_INS) USB INTERFACE (5 PINS) USB- XTAL1 (CLKIN) MISC (14 PINS) ...

Page 18

... Table 5.4 USB2244/2244i 36-Pin QFN Package SD_D0 SD_D4 SD_CLK USB+ RBIAS GPIO1 (LED) GPIO10 (CRD_PWR) TEST (3)VDD33 Revision 2.0 (10-14-09) Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers SD/MMC INTERFACE (12 Pins) SD_D1 SD_D2 SD_D5 SD_D6 SD_CMD SD_WP USB INTERFACE (5 PINS) ...

Page 19

... SMSC USB224x Chapter 7, "Pin Configurations," on page for a list of the acronyms used. BUFFER TYPE DESCRIPTION I/O12PD xD Data These bi-directional data signals have weak internal pull-down resistors. O12PD xD Write Protect This pin is an active low write protect signal for the xD device and has a weak pull-down resistor that is permanently enabled ...

Page 20

... When using the internal FET, this pin has a weak internal pull-up resistor that is tied to the output of the internal power FET external FET is used (Internal FET is disabled), then the internal pull-up is not available (external pull- ups must be used). 20 DATASHEET Datasheet SMSC USB224x ...

Page 21

... SD_CLK 9 SD_CMD 11 SMSC USB224x BUFFER TYPE MEMORY STICK (MS) INTERFACE I/O12PD MS System Data In/Out These pins are the bi-directional data signals for the MS device. MS_D0, MS_D2, and MS_D3 have weak pull-down resistors. In serial mode, the most significant bit (MSB) of each byte is transmitted first by either MSC or MS device on MS_D0 ...

Page 22

... VSS. MISC I/O12 General Purpose I/O (GPIO): This pin may be used either as input, edge sensitive interrupt input, or output. Custom firmware is required to activate this function. LED: GPIO1 can be used as an LED output. 22 DATASHEET Datasheet SMSC USB224x ...

Page 23

... RESET_N 18 TEST 28 GPIO12 GPIO14 GPIO15 26 SMSC USB224x BUFFER TYPE I/O12 GPIO: This pin may be used either as input, edge sensitive interrupt input, or output. Custom firmware is required to activate this function. I RXD: This signal can be used as input to the RXD of UART in the device. Custom firmware is required to activate this function ...

Page 24

... No Connect. No trace or signal should be routed/attached to these pins DIGITAL / POWER +1.8 V core power. This pin must have a 1.0 μF (or greater) ±20% (ESR <0.1 Ω) capacitor to VSS. 3.3 V Power and Regulator Input Ground Pad. Table 6.2 Buffer Type Descriptions DESCRIPTION 24 DATASHEET Datasheet DESCRIPTION SMSC USB224x ...

Page 25

... Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers Datasheet Chapter 7 Pin Configurations 7.1 Card Reader The SMSC USB224x is fully compliant with the following flash media card reader specifications: Secure Digital 2.0 - HS-SD and SDHC - TransFlash™ and reduced form factor media MultiMediaCard 4.2 - 1/4/8 bit MMC Memory Stick 1 ...

Page 26

... Note 7.2) 04h (See Note 7.2) 10h 03h “Generic” (See Note 7.1) 00h 24h 03h “Ultra Fast Media Reader" (See Note 7.1) 80h 30h (96 mA) 00h 00h 00h 08h 00h 80h 00h 00h 08h SMSC USB224x ...

Page 27

... The “SM” value will be overridden with “xD” once an xD-Picture Card has been identified. 7.2.3 EEPROM Data Descriptor Register Descriptions 7.2.3.1 00h: USB Serial String Descriptor Length BYTE NAME 0 USB_SER_LEN SMSC USB224x DESCRIPTION Secure Digital Device Power Lo byte Secure Digital Device Power Hi byte LED Blink Interval LED Blink After Access Device 0 Identifier String ...

Page 28

... USB 2.0 Specification (Revision 2.0, 2000). This field is the “bDescriptorType” which is a constant value associated with a string descriptor type. DESCRIPTION English language code = ‘0409’. See language ID’s defined by the USB-IF. 28 DATASHEET Datasheet Note 7.2 to reference additional SMSC USB224x ...

Page 29

... USB Product String Descriptor Type BYTE NAME 1 USB_PRD_STR _TYP SMSC USB224x DESCRIPTION English language code = ‘0409’. See language ID’s defined by the USB-IF. DESCRIPTION USB manufacturer string descriptor length as defined by Section 9.6.7 “String” of the USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength” ...

Page 30

... When configured as a bus-powered device, the SMSC device consumes less than 100 mA of current prior to being configured. After configuration, the bus-powered SMSC device (along with all associated device circuitry, any ...

Page 31

... ATT_HB 6:0 7 SMSC USB224x DESCRIPTION Always reads ‘0’. Inquire Manufacturer and Product ID Strings ‘1’ - Use the Inquiry Manufacturer and Product ID Strings. ‘0’ (default) - Use the USB Descriptor Manufacturer and Product ID Strings. Always reads ‘0’. Reverse SD Card Write Protect Sense ‘ ...

Page 32

... Not applicable. BIT TYPE Low Nibble 0000b Disabled High Nibble Low Nibble 0000b Disabled 0001b External FET enabled 1000b Internal FET with 100 mA power limit 1010b Internal FET with 200 mA power limit High Nibble 0000b Disabled 32 DATASHEET Datasheet DESCRIPTION DESCRIPTION SMSC USB224x ...

Page 33

... NAME 6:0 DEV0_ID_STR 7.2.5.2 B1h-B7h: Device 1 Identifier String BYTE NAME 6:0 DEV1_ID_STR SMSC USB224x BIT TYPE Low Nibble 0000b Disabled High Nibble Low Nibble 0000b Disabled 0001b External FET enabled 1000b Internal FET with 100 mA power limit 1010b Internal FET with 200 mA power limit ...

Page 34

... DEV_LUN_MAP registers for all devices to "FF" forces the use of the default mapping configuration. Not all configurations are valid. Valid configurations depend on the hardware, packaging, and OEM board layout. The number of unique LUNs mapped must match the value in the 7.2.5.7, "D3h: Dynamic Number of LUNs," on page 34 DATASHEET Datasheet Section 34. SMSC USB224x ...

Page 35

... BYTE NAME 3:0 NVSTORE_SIG 7.3 Default Configuration Option The SMSC device can be configured via its internal default configuration. Please see "EEPROM Data Descriptor" Table 7.1 for the internal default values that are loaded when this option is selected. 7.3.1 External Hardware RESET_N A valid hardware reset is defined as assertion of RESET_N for a minimum of 1 μ ...

Page 36

... Processor reinitializes and restarts. 5. All media interfaces are disabled. Revision 2.0 (10-14-09) Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers MIN TYP 1 20 100 Undefined 36 DATASHEET Datasheet MAX UNITS μsec μsec 500 50 msec 100 msec msec msec 5 msec Chapter 9, DC SMSC USB224x ...

Page 37

... Table 8.1 Legend for Pin Reset States Table 8.1 USB2240/40i/41/41i Pin Reset States Table 8.2 USB2240/40i/41/41i 36-Pin Reset States PIN xD_D4 / GPIO6 (SD_WP) / MS_SCLK 25 26 SMSC USB224x Hardware Firmware Initialization Operational RESET Figure 8.1 Pin Reset States SYMBOL DESCRIPTION 0 Output driven low 1 Output driven high IP ...

Page 38

... TEST TEST RESET_N RESET_N xD_nWE none xD_nB/R none xD_nCE none USB+ USB+ USB- USB- RESET STATE INPUT PU/ FUNCTION / OUT- PD PUT none DATASHEET Datasheet RESET STATE INPUT/ PU/ OUT- PD PUT POST-RESET STATE MS MODE OUT- PU/ IN- FUNCTION PUT PD PUT MS_D7 hw pd yes SMSC USB224x ...

Page 39

... GPIO2 / RXD / SDA 29 GPIO4 31 GPIO7 / TXD / SCK / MS_SKT_SEL 21 GPIO10 (CRD_PWR) 28 TEST 18 RESET_N 1 GPIO1 (LED USB+ 3 USB- 35 RBIAS 33 XTAL1 (CLKIN) 32 XTAL2 SMSC USB224x POST-RESET STATE RESET STATE INPUT PU/ FUNCTION / OUT- FUNCTION PD PUT none z -- MS_D6 none z -- MS_D4 none z -- MS_D5 SD_WP 0 -- MS_SCLK none z -- none none z ...

Page 40

... USB2244/44i Pin Reset States Table 8.4 USB2244/USB2244i 36-Pin Reset States PIN PIN NAME 8 SD_D6 7 SD_D7 5 SD_D0 4 SD_D1 30 SD_WP 25 SD_D2 23 SD_D3 20 SD_D4 9 SD_CLK 10 SD_D5 11 SD_CMD 19 GPIO14 26 GPIO15 (SD_nCD) 24 GPIO12 27 GPIO2 / RXD / SDA 29 GPIO4 31 GPIO7 / TXD / SCK 21 GPIO10 (CRD_PWR) 28 TEST 18 RESET_N 1 GPIO1 (LED) ...

Page 41

... AC power is switched on or off. In addition, voltage transients on the AC power line may appear on the DC output. When this possibility exists suggested that a clamp circuit be used. Voltage VDD33 SMSC USB224x MAX 150 4.0 (3.3 V supply voltage + 2) ≤ ...

Page 42

... IL 42 DATASHEET Datasheet COMMENTS Operating Temperature Ambient temperature in still air. (Note 9.3) If any 3.3 V supply voltage drops below 3.0 V, then the MAX becomes: (3.3 V supply voltage) + 0.5 ≤ 5.5 UNITS COMMENTS V TTL Levels V μA μA V TTL Levels μ DD33 SMSC USB224x ...

Page 43

... Pull Down Pull Up IO-U (Note 9.5) I-R (Note 9.6) I/O200 Integrated Power FET for GPIO10 High Output Current Mode Low Output Current Mode (Note 9.7) On Resistance (Note 9.7) Output Voltage Rise Time SMSC USB224x SYMBOL MIN TYP MAX I -10 + - DD33 - 0 ...

Page 44

... Table 11.1, “USB2240/40i and USB2241/41i GPIO Usage,” 1 DDP Table 9.1 Pin Capacitance LIMITS MIN TYP MAX C 2 XTAL OUT 44 DATASHEET Datasheet UNITS COMMENTS µA µA UNIT TEST CONDITION pF All pins (except USB pins and pins under test) are tied to AC ground SMSC USB224x ...

Page 45

... PARAMETER Thermal Resistance Junction-to-Top-of-Package Note 9.10 Thermal parameters are measured or estimated for devices with the exposed pad soldered to thermal vias in a multilayer 2S2P PCB per JESD51. Thermal resistance is measured from the die to the ambient air. SMSC USB224x VELOCITY (meters/sec) SYMBOL 0 Θ ...

Page 46

... Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers 1 M Crystal Figure 10.1 Typical Crystal Circuit Table 10.1 Crystal Circuit Legend IN ACCORDANCE WITH Crystal manufacturer’s specification (See OEM board design SMSC IC and OEM board design SMSC IC Calculated values based on Figure 10.2, "Capacitance Formulas" (See – – ...

Page 47

... Ceramic Resonator 24 MHz ± 350 ppm 24 MHz Ceramic Resonator Figure 10.3 Ceramic Resonator Usage with SMSC IC 10.3 External Clock 50% Duty cycle ± 10%, 24 MHz ± 350 ppm, Jitter < 100 ps rms. The external clock is recommended to conform to the signaling level designated in the JESD76-2 specification on 1 ...

Page 48

... Table 11.2 USB2242/42i GPIO Usage SYMBOL LED RXD / SDA GPIO SD_WP TXD / SCK / MS_SKT_SEL CRD_PWR MS_INS GPIO GPIO Table 11.3 USB2244/44i GPIO Usage SYMBOL LED RXD / SDA 48 DATASHEET Datasheet DESCRIPTION AND NOTE LED indicator Receive Port of Debugger / Serial EEPROM Data User defined ...

Page 49

... Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers Datasheet Table 11.3 USB2244/44i GPIO Usage (continued) GPIO4 USER GPIO6 L GPIO7 H GPIO10 L GPIO12 USER GPIO14 USER GPIO15 L SMSC USB224x GPIO User defined SD_WP SD Write Protect Detection TXD / SCK / MS_SKT_SEL Transmit Port of Debugger / Serial EEPROM Clock / Memory Stick Socket (1 = 8-bit ...

Page 50

... BSC 50 DATASHEET Datasheet NOTE REMARKS - Overall Package Height - Standoff - Mold Thickness - Leadframe Thickness - X/Y Overall Body Size - X/Y Mold Cap Size 2 X/Y Exposed Pad Size - Terminal Length 2 Terminal Width - Terminal Pitch SMSC USB224x ...

Page 51

... Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers Datasheet Note 12.4 Details of terminal #1 identifier are optional but must be located within the area indicated. Note 12.5 Coplanarity zone applies to exposed pad and terminals. Figure 12.2 Additional Package Information and Notes SMSC USB224x 51 DATASHEET Revision 2.0 (10-14-09) ...

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