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USB2512I-AEZG Datasheet(PDF) 11 Page - SMSC Corporation |
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USB2512I-AEZG Datasheet(HTML) 11 Page - SMSC Corporation |
11 / 37 page Industrial Temperature Rated USB 2.0 High-Speed 2-Port Hub Controller Datasheet SMSC USB2512i 11 Revision 1.92 (11-28-07) DATASHEET 0 1 Configured as an SMBus slave for external download of user-defined descriptors. SMBus slave address 58 (0101100x) Strap Options Disabled All Settings Controlled by Registers 1 0 Internal Default Configuration Strap Options Enabled Bus Power Operation 1 1 2-Wire I2C EEPROMS are supported. Strap Options Disabled All Settings Controlled by Registers Table 3.3 USB2512i Power, Ground, and No Connect PACKAGE SYMBOL 36-QFN EMB FUNCTION VDD18 14 VDD Core This pin must have a 1.0 μF (or greater) ±20% (ESR <0.1Ω) capacitor to VSS. VDD33PLL 36 VDD 3.3 PLL Regulator Reference +3.3V power supply for the PLL. If the internal PLL 1.8V regulator is enabled, then this pin acts as the regulator input. VDDPLL18 34 VDD PLL This pin must have a 1.0 μF (or greater) ±20% (ESR <0.1Ω) capacitor to VSS. VDDA33 5 10 29 VDD Analog I/O +3.3V Filtered analog PHY power, shared between adjacent ports. VDD33/VDD33CR 23 15 VDDIO/VDD 3.3 Core Regulator Reference +3.3V power supply for the Digital I/O If the internal core regulator is enabled, then VDD33CR acts as the regulator input. NC 6 7 8 9 18 19 20 21 No Connect Leave unconnected on the circuit board. Table 3.2 SMBus or EEPROM Interface Behavior (continued) CFG_SEL1 CFG_SEL0 SMBUS OR EEPROM INTERFACE BEHAVIOR |
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