SMSC USB464, USB4640i 10.2Operating Conditions, 10.3DC Electrical Characteristics, MIN, MAX, MIN, TYP, MAX, UNITS, UNITS, SYMBOL, SYMBOL, COMMENTS, COMMENTS, PARAMETER, PARAMETER

High Speed Inter-Chip USB 2.0 Hub and Flash Media Controller

Datasheet

10.2Operating Conditions

PARAMETER	SYMBOL	MIN	MAX	UNITS	COMMENTS
Commercial	TA	0	70	°C	Ambient temperature in still air.
USB4640
Operating
Temperature
Industrial	TA	-40	85	°C	Ambient temperature in still air.
USB4640i
Operating
Temperature
3.3 V supply voltage	VDD33	3.0	3.6	V	A 3.3 V regulator with an output
					tolerance of 1% must be used if
					the output of the internal power
					FET’s must support a 5%
					tolerance.
3.3 V supply rise time	tRT	0	400	μs	(Figure 10.1)
Voltage on		-0.3	5.5	V	If any 3.3 V supply voltage drops
USB+ and USB- pins					below 3.0 V, then the MAX
					becomes:
					(3.3 V supply voltage) + 0.5 ≤ 5.5
Voltage on any signal		-0.3	VDD33	V
pin
Voltage on XTAL1		-0.3	2.0	V
Voltage on XTAL2		-0.3	2.0	V

10.3DC Electrical Characteristics

PARAMETER	SYMBOL	MIN	TYP	MAX	UNITS	COMMENTS
I, IPU, IPD Type Input Buffer
Low Input Level	VILI			0.8	V	TTL Levels
High Input Level	VIHI	2.0			V
Pull Down	PD		72		μA
Pull Up	PU		58		μA
IS Type Input Buffer
Low Input Level	VILI			0.8	V	TTL Levels
High Input Level	VIHI	2.0			V
Hysteresis	VHYSI		420		mV

SMSC USB4640/USB4640i 57 Revision 1.0 (06-01-09)

DATASHEET