SMSC USB20H04 manual 14

4-Port USB 2.0 Hub Controller

Datasheet

PARAMETER	SYMBOL	COMMENTS	MIN	TYP	MAX	UNITS
I, IPD, IPU Input Buffer	VILI	TTL Levels			0.8	V
Low Input Level
High Input Level	VIHI	TTL Levels	2.0			V
Low Input Leakage	IIL	VIN = 0	-10		+10	uA
High Input Leakage	IIH	VIN = VDD3.3	-10		+10	uA
ICLK Input Buffer	VILCK	TTL Levels			0.8	V
Low Input Level
High Input Level	VIHCK	TTL Levels	2.0			V
Hysteresis	VHYSC		50		100	mV
O8 and IO8 Buffer
Low Output Level	VOL	IOL = 8 mA @ VDD3.3 = 3.3V			0.8	V
High Output Level	VOH	IOH = -4mA @ VDD3.3 = 3.3V	2.4			V
Output Leakage	IOL	VIN = 0 to VDD3.3	-10		+10	uA
		(Note 6.1)
OD8 and IOD8 Buffer
Low Output Level	VOL	IOL = 8 mA @ VDD3.3 = 3.3V			0.8	V
Output Leakage	IOL	VIN = 0 to VDD3.3	-10		+10	uA
		(Note 6.1)
IOSD12 Buffer
Low Output Level	VOL	IOL = 12 mA @ VDD3.3 = 3.3V			0.8	V
	IOL	VIN = 0 to VDD3.3	-10		+10	uA
Output Leakage		(Note 6.1)
Hysteresis	VHYSI		250	300	350	mV

Note 6.1 - Output Leakage is measured with the current pins in high impedance.

Table 6.3 - Pin Capacitance

PARAMETER	SYMBOL	CONDITIONS	MIN	TYP	MAX	UNITS
Clock Input Capacitance	CCLKIN				12	pF
Input Capacitance	CIN	All pins – except DPx/DMx pins			8	pF
Output Capacitance	COUT	All pins – except DPx/DMx pins			12	pF

Revision 1.63 (03-30-07) Page 14 SMSC USB20H04

DATASHEET