SMSC USB2513i 3.2Buffer Type Descriptions, 36 QFN, 48 QFN, SYMBOL, BUFFER, PACKAGE, FUNCTION, DESCRIPTION, Table 3.4 USB2514 Buffer Type Descriptions

				Industrial Temperature Rated USB 2.0 High-Speed 3-Port Hub Controller
				Datasheet
		Table 3.3 USB2514 Power, Ground, No Connect
PACKAGE	36 QFN		48 QFN	FUNCTION
SYMBOL
VDD18	14		17	VDD Core
				+1.8V core power. If the internal regulator is enabled, then this pin
				must have a 1.0μF (or greater) ±20% (ESR <0.1Ω) capacitor to
				VSS.
VDD33PLL	36		48	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		46	VDD PLL
				+1.8V Filtered analog power for internal PLL. If the internal
				regulator is enabled, then this pin must have a 1.0μF (or greater)
				±20% (ESR <0.1Ω) capacitor to VSS.
VDDA33	5		5	VDD Analog I/O
	10		10	+3.3V Filtered analog PHY power, shared between adjacent ports.
	29		41
VDD33/VDD33CR	23		30	VDDIO/VDD 3.3 Core Regulator Reference
	15		18	+3.3V power supply for the Digital I/O
				If the internal core regulator is enabled, then VDD33CR acts as
				the regulator input.
VSS	n/a		n/a	VSS
				Ground

3.2Buffer Type Descriptions

	Table 3.4 USB2514 Buffer Type Descriptions
BUFFER	DESCRIPTION
I	Input.
IPD	Input with internal weak pull-down resistor.
IPU	Input with internal weak pull-up resistor.
IS	Input with Schmitt trigger.
O12	Output 12mA.
OD12	Open drain... 12mA sink.
I/O12	Input/Output buffer with 12mA sink and 12mA source.

Revision 1.98 (11-19-07)	16	SMSC USB2513i
	DATASHEET