SMSC USB20H04 Chapter 5 Limiting Values

4-Port USB 2.0 Hub Controller

Datasheet

Chapter 5 Limiting Values

Table 5.1 - Absolute Maximum Ratings (In accordance with the Absolute Maximum Rating system (IEC 60134)

PARAMETER	SYMBOL	CONDITIONS	MIN	TYP	MAX	UNITS
1.8V Supply Voltage	VDD1.8		-0.5		2.5	V
(VDD1.8 and VDDA1.8)
3.3V Supply Voltage	VDD3.3		-0.5		4.0	V
(VDD3.3 and VDDA3.3)
Voltage on any I/O pin			-0.3		5.5	V
Voltage on XTAL1/CLKIN and			-0.3		3.6	V
XTAL2
Storage Temperature	TSTG		-40		+125	oC

Table 5.2 - Recommended Operating Conditions

PARAMETER	SYMBOL	CONDITIONS	MIN	TYP	MAX	UNITS
1.8V Supply Voltage	VDD1.8		1.74	1.8	2.0	V
(VDD1.8 and VDDA1.8)
3.3V Supply Voltage	VDD3.3		3.0	3.3	3.6	V
(VDD3.3 and VDDA3.3)
Input Voltage on Digital Pins	VI		0.0		VDD3.3	V
Input Voltage on Analog I/O	VI(I/O)		0.0		VDD3.3	V
Pins (DP, DM)
Ambient Temperature	TA		0		+70	oC
Table 5.3 - Recommended Crystal/External Clock Conditions
PARAMETER	SYMBOL	CONDITIONS	MIN	TYP	MAX	UNITS
Crystal Frequency				24		MHz
				(+/- 100ppm)
External Clock Frequency				24		MHz
		XTAL1/CLKIN driven by the		(+/- 100ppm)
External Clock Duty Cycle		external clock; no connection	45	50	55	%
		at XTAL2; and CLKIN_EN is
		high
External Clock RMS Jitter					100	ps

Revision 1.63 (03-30-07) Page 12 SMSC USB20H04

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