SMSC USB2512Ai CFG_SEL1, CFG_SEL0, FUNCTION, 36-QFNEMB, PACKAGE SYMBOL, SMBUS OR EEPROM INTERFACE BEHAVIOR, Table 3.3 Power, Ground, and No Connect

Industrial Temperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller

Datasheet

Table 3.2 SMBus or EEPROM Interface Behavior

CFG_SEL1	CFG_SEL0				SMBUS OR EEPROM INTERFACE BEHAVIOR
0	0			Internal Default Configuration
				„	Strap Options Enabled
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 Power, Ground, and No Connect
PACKAGE SYMBOL		36-QFN EMB			FUNCTION
VDD18		14			VDD Core
					This pin must have a 1.0μF (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.
VDD18PLL		34			VDD PLL
					This pin must have a 1.0μF (or greater) ±20% (ESR <0.1Ω) capacitor to
					VSS.
VDDA33		5			VDD Analog I/O
		10			+3.3V Filtered analog PHY power, shared between adjacent ports.
		29
VDD33/VDD33CR		23			VDDIO/VDD 3.3 Core Regulator Reference
		15			+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			No Connect
		7			No trace or signal should be routed or attached to these pins.
		8
		9
		18
		19
		20
		21

SMSC USB2512Ai	11	Revision 1.97 (08-11-08)
	DATASHEET