USB2412 Просмотр технического описания (PDF) - SMSC -> Microchip

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USB2412

2-Port USB 2.0 Hi-Speed Hub Controller

SMSC -> Microchip 

Chapter 4 DC Parameters

2-Port USB 2.0 Hi-Speed Hub Controller

Datasheet

4.1

Maximum Guaranteed Ratings

PARAMETER

SYMBOL

MIN

Storage Temperature

TSTOR

-55

Lead Temperature

3.3 V supply voltage

VDD33

PLLFILT

CRFILT

Voltage on any I/O pin

-0.5

Voltage on XTALIN

-0.5

Voltage on XTALOUT

-0.5

MAX

150

4.6

5.5

4.0

2.5

UNITS

°C

°C

V

V

V

V

4.2

Note 4.1 Refer to JEDEC Specification J-STD-020D 5..

Note 4.2

Stresses above the specified parameters could cause permanent damage to the device.

This is a stress rating only and functional operation of the device at any condition above

those indicated in the operation sections of this specification is not implied.

Note 4.3

When powering this device from laboratory or system power supplies, it is important that

the absolute maximum ratings not be exceeded or device failure can result. Some power

supplies exhibit voltage spikes on their outputs when the AC power is switched on or off.

In addition, voltage transients on the AC power line may appear on the DC output. When

this possibility exists, it is suggested that a clamp circuit be used.

Operating Conditions

PARAMETER

SYMBOL

MIN

Operating

TA

0

Temperature

3.3 V supply voltage VDD33

3.0

3.3 V supply rise

tRT

0

time

Voltage on any I/O

-0.3

pin

Voltage on XTALIN

-0.3

MAX

70

3.6

400

5.5

VDD33

UNITS

COMMENTS

°C Ambient temperature in still air.

V

μs See Figure 4.1

V If any 3.3 V supply voltage drops

below 3.0 V, then the MAX becomes:

(3.3 V supply voltage) + 0.5

V

Revision 1.3 (12-27-11)

16

DATASHEET

SMSC USB2412

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