USB2244 Standard Microsystems Corp., USB2244 Datasheet

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... PRODUCT FEATURES General Description The SMSC USB2244/USB2244i is a USB 2.0 compliant, high speed Bulk Only Mass Storage Class Peripheral Controller intended for reading and writing to SD/MMC Flash Media Cards. The SMSC USB2244/USB2244i is a fully integrated, single chip solution capable of ultra high performance operation. ...

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... USB2244/USB2244i-AEZG-XX for 36 pin, QFN Lead-Free RoHS Compliant Package “XX” in the order number indicates the internal ROM firmware revision level. Please contact your SMSC sales representative for more information. 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright © 2008 SMSC or its subsidiaries. All rights reserved. ...

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... Chapter 5 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.1 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.2 Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Chapter 6 Pin Reset State Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.1 36-Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Chapter 7 DC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.1 Maximum Guaranteed Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7.2 Recommended Operating Conditions 7.3 DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7.4 Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Chapter 8 AC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.1 Oscillator/Clock Chapter 9 Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Chapter 10 GPIO Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 SMSC USB2244/USB2244i 3 DATASHEET Revision 1.0 (05-27-08) ...

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... Figure 6.1 Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 6.2 Legend for Pin Reset States Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 7.1 Supply Rise Time Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 8.1 Typical Crystal Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 8.2 Formula to Find Value of C1 and Figure 9.1 USB2244/USB2244i 36-QFN, 6x6mm Body, 0.5mm Pitch . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Revision 1.0 (05-27-08) Ultra Fast USB 2.0 SD/MMC Flash Media Controller 4 DATASHEET ...

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... Ultra Fast USB 2.0 SD/MMC Flash Media Controller Datasheet List of Tables Table 3.1 USB2244/2244i 36-Pin QFN Package Table 5.2 USB2244/2244i 36-Pin QFN Pin Descriptions Table 5.3 USB2244/USB2244i Buffer Type Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Table 6.1 USB2244/USB2244i Pin Reset States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Table 7.1 Pin Capacitance Table 10.1 USB2244/USB2244i GPIO Usage (ROM Rev 0x00 SMSC USB2244/USB2244i 5 DATASHEET Revision 1.0 (05-27-08) ...

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... SMSC Software License Agreement must be executed and in effect. Forms of these Software License Agreements may be obtained by contacting SMSC. Revision 1.0 (05-27-08) Ultra Fast USB 2.0 SD/MMC Flash Media Controller 6 DATASHEET Datasheet SMSC USB2244/USB2244i ...

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... Chapter 2 Block Diagram USB Host SIE BUS PHY CTL INTFC RAM 10KB ADDR MAP ROM 64KB Clock Generation and Control Figure 2.1 USB2244/USB2244i Block Diagram SMSC USB2244/USB2244i AUTO_ CBW PROC FMI BUS FMDU INTFC CTL EP0 TX EP0 RX BUS RAM INTFC EP1 RX EP1 TX ...

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... Chapter 3 Pin Table 3.1 36-Pin Package Table 3.1 USB2244/2244i 36-Pin QFN Package SD_D0 SD_D4 SD_CLK USB+ XTAL1 (CLKIN) GPIO1 (LED1) GPIO2 / RXD / SDA GPIO10 (CRD_PWR) TEST (3)VDD33 Revision 1.0 (05-27-08) Ultra Fast USB 2.0 SD/MMC Flash Media Controller SD/MMC INTERFACE (12 Pins) SD_D1 SD_D2 SD_D5 SD_D6 SD_CMD ...

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... Ultra Fast USB 2.0 SD/MMC Flash Media Controller Datasheet Chapter 4 Pin Configuration TEST GPIO4 SD _WP GPIO7 / TXD / SCK XTAL2 XTAL1 (CLKIN) VDD18PLL RBIAS VDDA33 Figure 4.1 USB2244/USB2244i 36 Pin QFN Diagram SMSC USB2244/USB2244i SMSC 31 USB2244/2244i 32 (Top View QFN-36 Thermal Slug 35 (must be connected to VSS) 36 Indicates pins on the bottom of the device ...

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... The term assert, or assertion, indicates that a signal is active, independent of whether that level is represented by a high or low voltage. The term negate, or negation, indicates that a signal is inactive. 5.1 Pin Descriptions Table 5.2 USB2244/2244i 36-Pin QFN Pin Descriptions NAME SYMBOL SD Data SD_D[7:0] ...

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... Ultra Fast USB 2.0 SD/MMC Flash Media Controller Datasheet Table 5.2 USB2244/2244i 36-Pin QFN Pin Descriptions (continued) NAME SYMBOL 24MHz Crystal XTAL1 or external clock (CLKIN) input 24MHz Crystal XTAL2 3.3V Analog VDDA33 Power 1.8V PLL Power VDD18PLL General Purpose GPIO1 (LED1) I/O General Purpose GPIO2 / RXD / ...

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... Table 5.2 USB2244/2244i 36-Pin QFN Pin Descriptions (continued) NAME SYMBOL TEST Input TEST No Connects NC +1.8V Core VDD18 power 3.3V Power & VDD33 Regulator Input. Ground VSS 5.2 Buffer Type Descriptions Table 5.3 USB2244/USB2244i Buffer Type Descriptions BUFFER I Input. IS Input with Schmitt trigger. I/O12 Input/Output buffer with 12mA sink and 12mA source. ...

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... VDD hardware supplies power through pin, applicable only to CARD_PWR pins none hardware disables pad Figure 6.2 Legend for Pin Reset States Table SMSC USB2244/USB2244i Hardware Initialization RESET Figure 6.1 Pin Reset States 13 DATASHEET Firmware ...

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... Reset States Table 6.1 USB2244/USB2244i 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(CARD_PWR) 28 TEST 18 nRESET 1 GPIO1 (LED1) 17: USB+ ...

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... Absolute Maximum Ratings not be exceeded or device failure can result. Some power supplies exhibit voltage spikes on their outputs when the 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. SMSC USB2244/USB2244i MAX UNITS 150 ° ...

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... Figure 7.1 Supply Rise Time Model MIN MAX UNITS 0 70 °C -40 85 °C 3.0 3.6 V μs 0 400 -0.3 5 DD33 -0 DDA33 -0 DD18 16 DATASHEET Datasheet 3.3V 100% Time COMMENTS (Note 7.3) If any 3.3V supply voltage drops below 3.0V, then the MAX becomes: (3.3V supply voltage) + 0.5 ≤ 5.5 SMSC USB2244/USB2244i ...

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... ICLK Input Buffer Low Input Level High Input Level Input Leakage Input Leakage (All I and IS buffers) Low Input Leakage High Input Leakage O12 Type Buffer Low Output Level High Output Level Output Leakage SMSC USB2244/USB2244i SYMBOL MIN TYP MAX V 0.8 ILI V 2.0 IHI PD ...

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... CSBY I 350 900 CSBYI 18 DATASHEET Datasheet UNITS COMMENTS 12mA @ 3.3V DD33 -12mA @ 3.3V DD33 µ DD33 (Note 7.4) μA μA mA Vdrop = 0.46V FET mA Vdrop = 0.23V FET Ω 70mA FET μ 10μF LOAD µA µA SMSC USB2244/USB2244i ...

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... The 3.3V supply should be at least at 75% of its operating condition before the 1.8V supply is allowed to ramp up. 7.4 Capacitance T = 25° 1MHz PARAMETER SYMBOL Clock Input Capacitance Input Capacitance Output Capacitance SMSC USB2244/USB2244i Table 10.1, “USB2244/USB2244i GPIO Usage (ROM Rev 0x00),” 1.8V DD, DDP Table 7.1 Pin Capacitance LIMITS MIN TYP MAX C 2 XTAL ...

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... Figure 8.2 Formula to Find Value of C Revision 1.0 (05-27-08) Ultra Fast USB 2.0 SD/MMC Flash Media Controller 1Meg C L Figure 8.1 Typical Crystal Circuit ( DATASHEET Datasheet XTAL1 ( XTAL XTAL2 ( XTAL and C 2 SMSC USB2244/USB2244i ...

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... Chapter 9 Package Outline Figure 9.1 USB2244/USB2244i 36-QFN, 6x6mm Body, 0.5mm Pitch ...

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... Chapter 10 GPIO Usage Table 10.1 USB2244/USB2244i GPIO Usage (ROM Rev 0x00) NAME ACTIVE LEVEL GPIO1 H GPIO2 H GPIO4 USER GPIO7 H GPIO10 L GPIO12 USER GPIO14 USER GPIO15 L Revision 1.0 (05-27-08) Ultra Fast USB 2.0 SD/MMC Flash Media Controller SYMBOL LED1 LED indicator RXD / SDA Receive Port of Debugger / Serial ...