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SMSC USB2512Ai DA T ASHEET Revision 1.97 (08-1 1- 08) Datasheet PRODUCT FEA TURES USB2512Ai Industrial T emperature Rated USB 2.0 Hi-S peed 2-Port Hub Controller General Description The SMSC 2-Port Hub is a low power , OEM configurable, STT (single transaction translator) Hub controller IC with 2 downstream ports for embedded USB solutions.
ORDER NUMBER: USB2512Ai-AEZG FOR 36 PIN, QFN LE AD-FREE ROHS COMPLIANT PACKAGE Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 2 SMSC USB2512Ai DA T ASHEET 80 ARKA Y DRIVE, HAUPP AUGE, NY 1 1788 (631) 435-6000 , F AX (631) 273-3123 Copyright © 20 08 SMSC or it s subsidiaries.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 3 Revision 1.97 (08-1 1-08) DA T ASHEET T able of Content s Chapter 1 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 4 SMSC USB2512Ai DA T ASHEET List of Figures Figure 1.1 USB2512Ai 36-Pin QFN (Embedded Footprint). . . . . . . . . . . . . . . . . . . . . . . . .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 5 Revision 1.97 (08-1 1-08) DA T ASHEET List of T ables Table 3.1 USB2512Ai Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 6 SMSC USB2512Ai DA T ASHEET Chapter 1 Pin Configuration Figure 1.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 7 Revision 1.97 (08-1 1-08) DA T ASHEET Chapter 2 Block Diagram Figure 2.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 8 SMSC USB2512Ai DA T ASHEET Chapter 3 Pin Descriptions 3.1 Pin Descriptions This section provides a detailed description of each signal. The signals are arranged in functional groups according to their associated interface.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 9 Revision 1.97 (08-1 1-08) DA T ASHEET RBIAS 35 I-R USB T ranscei ver Bias A 12.0k Ω (+/- 1%) resistor is attached from ground to this pin to set the transceiver ’s internal bias settings.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 10 SMSC USB2512Ai DA T ASHEET XT AL2 32 OCLKx Crystal Output 24MHz Crystal This is the other terminal of the crystal, or a NO CONNECT when an external clock source is used to drive XT AL1/CLKIN.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 1 1 Revision 1.97 (08-1 1-08) DA T ASHEET T able 3.2 SMBus or EEPROM Interface Behavior CFG_SEL1 CFG_SEL0 .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 12 SMSC USB2512Ai DA T ASHEET 3.2 Buffer T ype Descriptions T able 3.4 Buffer T y pe Descriptions BUFFER DESCRIPTION I/O Input/Output. IPD Input with internal weak pull -down resistor .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 13 Revision 1.97 (08-1 1-08) DA T ASHEET Chapter 4 Configuration Options 4.1 2-Port Hub SMSC’s USB 2.0 2-Port Hub is fully specification co mpliant to the Universal Serial Bus S pecifica tion Revision 2.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 14 SMSC USB2512Ai DA T ASHEET 4.2.1.1 Register 00h: V e ndor ID (LSB) 03h R/W PID MSB PIDM 25h .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 15 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.2 Register 01h: V e ndor ID (MSB) 4.2.1.3 Register 02h: Product ID (LSB) 4.2.1.4 Register 03h: Product ID (MSB) 4.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 16 SMSC USB2512Ai DA T ASHEET 4.2.1.7 Register 06h: CONFIG_BYTE_1 BIT NUMBER BIT NAME DESCRIPTION 7 SELF_BUS_PWR Self or Bus Power: Selects between Self- and Bus-Powered operation.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 17 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.8 Register 07h: Configurat ion Dat a Byte 2 0 PORT_PWR Port.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 18 SMSC USB2512Ai DA T ASHEET 4.2.1.9 Register 08h: Configurat ion Dat a Byte 3 4.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 19 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.1 1 Register 0Ah: Port Disa ble For Self-Powered Op eration 4.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 20 SMSC USB2512Ai DA T ASHEET 4.2.1.13 Register 0Ch: Max Powe r For Self-Powered Operation 4.2.1.14 Register 0Dh: Max Power For Bus -Powered Operation 4.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 21 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.16 Register 0Fh: Hu b Controller Max Current For Bus-Powered Operation 4.2.1.17 Register 10h: Power-On T ime 4.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 22 SMSC USB2512Ai DA T ASHEET 4.2.1.19 Register F8h: Boost_2:0 4.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 23 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.1.21 Register FBh: Port Remap 12 BIT NUMBER BIT NAME DESCRIPTION 7:0 PRTR12 Port remap register for ports 1 & 2.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 24 SMSC USB2512Ai DA T ASHEET 4.2.1.22 Register FFh: S tatus/Co mmand 4.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 25 Revision 1.97 (08-1 1-08) DA T ASHEET 4.2.3 In-Circuit EEPROM Programming The EEPROM can be programmed via A T E by pulling RESET_N low (which tri-states the Hub’ s EEPROM interface and allows an exter nal source to program the EEPROM).
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 26 SMSC USB2512Ai DA T ASHEET Figure 4.1 Block Write Block Read A Block Read differs from a block write in that th e repeated start conditio n exists to satisfy the I 2 C specification’s requirement for a ch ange in the t ransfer direction .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 27 Revision 1.97 (08-1 1-08) DA T ASHEET 4.3.5 Stretching the SCLK Signal The Hub supports stretching o f the SCLK by othe r device s on the SMBus. The Hub does not stretch the SCLK.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 28 SMSC USB2512Ai DA T ASHEET 4.6.2 External Hardware RESET_N A valid hardware reset is defined as assertion of RESET_N for a minimum of 1us after all power supplies are within ope rating range.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 29 Revision 1.97 (08-1 1-08) DA T ASHEET Notes: When in Bus-Powered mode, the Hub and its associated circuitry must not consume more than 100mA from the upstream USB power source during t1+t5.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 30 SMSC USB2512Ai DA T ASHEET 4.6.2.3 RESET_N for SMBus Slave Configuration Figure 4.5 Reset_N Timing for SMBus Mode Notes: For Bus-Powered configu rations, the 99.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 31 Revision 1.97 (08-1 1-08) DA T ASHEET 4. Clears all TT buffers. 5. Moves device from suspended to active (if suspende d). 6. Complies with Section 1 1.10 of the USB 2.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 32 SMSC USB2512Ai DA T ASHEET Chapter 5 DC Parameters 5.1 Maximum Guaranteed Ratings Note 5.1 S tresses above the specified parameters co uld cause permanent damage to the device.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 33 Revision 1.97 (08-1 1-08) DA T ASHEET 5.2 Operating Conditions PARAMETER SYMBOL MIN MAX UNITS COMMENT S Operating T e mperature T A -40 85 °C Ambient temperature in still air .
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 34 SMSC USB2512Ai DA T ASHEET Notes: 1. Output leakage i s measured with the current pins in high impedance. 2. See USB 2.0 S pecification for U SB DC electrical characteristics.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet SMSC USB2512Ai 35 Revision 1.97 (08-1 1-08) DA T ASHEET CAP ACIT ANCE T A = 25°C; fc = 1MHz; V DD18 , V DDPLL = 1.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 36 SMSC USB2512Ai DA T ASHEET Chapter 6 AC S pecifications 6.1 Oscillator/Clock Crystal: Parallel Resonant, Fundamental Mode, 24 MHz ± 350ppm. External Clock: 50% Duty cycl e ± 1 0 % , 2 4 M H z ± 350ppm, Jitter < 100 ps rms.
Industrial T emperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller Datasheet Revision 1.97 (08-1 1-08) 37 SMSC USB2512Ai DA T ASHEET Chapter 7 Package Outline Figure 7.
Een belangrijk punt na aankoop van elk apparaat SMSC USB2512Ai (of zelfs voordat je het koopt) is om de handleiding te lezen. Dit moeten wij doen vanwege een paar simpele redenen:
Als u nog geen SMSC USB2512Ai heb gekocht dan nu is een goed moment om kennis te maken met de basisgegevens van het product. Eerst kijk dan naar de eerste pagina\'s van de handleiding, die je hierboven vindt. Je moet daar de belangrijkste technische gegevens SMSC USB2512Ai vinden. Op dit manier kan je controleren of het apparaat aan jouw behoeften voldoet. Op de volgende pagina's van de handleiding SMSC USB2512Ai leer je over alle kenmerken van het product en krijg je informatie over de werking. De informatie die je over SMSC USB2512Ai krijgt, zal je zeker helpen om een besluit over de aankoop te nemen.
In een situatie waarin je al een beziter van SMSC USB2512Ai bent, maar toch heb je de instructies niet gelezen, moet je het doen voor de hierboven beschreven redenen. Je zult dan weten of je goed de alle beschikbare functies heb gebruikt, en of je fouten heb gemaakt die het leven van de SMSC USB2512Ai kunnen verkorten.
Maar de belangrijkste taak van de handleiding is om de gebruiker bij het oplossen van problemen te helpen met SMSC USB2512Ai . Bijna altijd, zal je daar het vinden Troubleshooting met de meest voorkomende storingen en defecten #MANUAl# samen met de instructies over hun opplosinge. Zelfs als je zelf niet kan om het probleem op te lossen, zal de instructie je de weg wijzen naar verdere andere procedure, bijv. door contact met de klantenservice of het dichtstbijzijnde servicecentrum.