USB2517 datasheet(48/58 Pages) MICROCHIP

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USB2517/USB2517I

DS00001598B-page 48

 2013-2016 Microchip Technology Inc.

8.2

Operating Conditions

Note 8-1

If RESET_N is controlled low during the 3.3V rise time and driven high after VDD33 is stable, the

rise time can be extended to 100 ms.

Note 8-2

0°C for commercial temperature version, -40°C for industrial temperature version

Note 8-3

70°C for commercial temperature version, +85°C for industrial temperature version

Parameter

Symbol

Min

Max

Units

Comments

Operating

Temperature

Note 8-2

Note 8-3

°C

Ambient temperature in still air.

1.8V supply

voltage

VDDA18PLL

VDD18

1.62

1.98

3.3V supply

voltage

VDDA33

VDDA33PLL

VDD33

VDD33CR

3.0

3.6

3.3V supply

rise time

tRT

400

s

(See Note 8-1and Figure 8-1, "SUPPLY

RISE TIME MODEL")

Voltage on any

I/O pin

-0.3

5.5

If any 3.3V supply voltage drops below

3.0V, then the MAX becomes:

(3.3V supply voltage) + 0.5

Voltage on

XTAL1

-0.3

VDD33

Voltage on

XTAL2

-0.3

VDD18

FIGURE 8-1:

SUPPLY RISE TIME MODEL

t10%

10%

90%

Voltage

tRT

t90%

Time

100%

3.3V

VSS

VDD33

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