USB3370 datasheet(10/75 Pages) MICROCHIP

10 / 75 page

USB3370

DS00001915B-page 10

 2012 - 2015 Microchip Technology Inc.

4.0

ELECTRICAL CHARACTERISTICS

The following conditions are assumed unless otherwise specified:

VDD33 = 3.0 to 3.6V; VDD18 = 1.6 to 2.0V; VSS = 0V; TA = -40C to +85C

4.1

Operating Current

Note 4-1

ClockSuspendM

bit = 0.

Note 4-2

SessEnd, VbusVld, and IdFloat comparators disabled. STP Interface protection disabled.

Note 4-3

REFCLK is OFF

4.2

Clock Specifications

The model number for each frequency of REFCLK is provided in Product Identification System on page 73.

Note 1:

TSTART and TPREP are measured from the time when REFCLK and RESETB are both valid to when the

USB3370 de-asserts DIR.

The USB3370 uses the AutoResume feature, Section 6.4.1.4, to allow a host start-up time of less than 1ms.

Note 4-4

REFCLK with oscillator Input

Note 4-5

Crystal Input

TABLE 4-1:

OPERATING CURRENT

Parameter

Symbol

Conditions

MIN

TYP

MAX

Units

Synchronous Mode Current

(Default Configuration)

IVBAT(SYNC)

USB Idle

IVIO(SYNC)

Synchronous Mode Current

(HS USB operation)

IVBAT(HS)

Active USB Transfer

IVIO(HS)

Synchronous Mode Current

(FS/LS USB operation)

IVBAT(FS)

Active USB Transfer

28.5

IVIO(FS)

Serial Mode Current

(FS/LS USB)

Note 4-1

IVBAT(FS_S)

IVIO(FS_S)

00.1

0.7

USB UART Current

Note 4-1

IVBAT(UART)

IVIO(UART)

00.1

0.7

Low Power Mode

Note 4-2

Note 4-3

IVBAT(SUSPEND)

VVBAT = 4.2V

VVDDIO = 1.8V

IVIO(SUSPEND)

RESET Mode

Note 4-3

IVBAT(RSTB)

RESETB

= 0

VVBAT = 4.2V

VVDDIO = 1.8V

0.1

IVIO(RSTB)

TABLE 4-2:

CLOCK SPECIFICATIONS

Parameter

Symbol

Conditions

MIN

TYP

MAX

Units

Suspend Recovery Time

TSTART

LPM Enable = 0

1.0

1.1

1.32

TSTART_LPM

LPM Enable = 1

125

150

PHY Preparation Time

60MHz REFCLK

TPREP

LPM Enable = 0

1.0

1.1

1.32

TPREP_LPM

LPM Enable = 1

125

150

CLKOUT

Duty Cycle

DCCLKOUT

ULPI Clock Input Mode

REFCLK

Duty Cycle

DCREFCLK

REFCLK

Frequency Accuracy

FREFCLK

-500

+500

PPM

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