ISP1521 datasheet(35/53 Pages) PHILIPS

35 / 53 page

Philips Semiconductors

ISP1521

Hi-Speed USB hub controller

Product data

Rev. 03 — 24 November 2004

35 of 53

9397 750 13702

15. Static characteristics

[1]

Irrespective of the number of devices connected, the value of ICC is always 91 mA in full-speed.

[2]

Including Rpu drop current.

[1]

All pins are 5 V tolerant.

Table 36:

Static characteristics: supply pins

VCC = 3.0 V to 3.6 V; Tamb = −40 °Cto+70 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Full-speed

IREF(5V0)

supply current 5 V

0.5

ICC(tot)

total supply current 3.3 V

ICC(tot) =ICC1 +ICC2 +ICC3 +ICC4

[1] -91

High-speed

ICC(tot)

total supply current 3.3 V

suspend mode; internal clock stopped

[2] -

0.5

no device connected

183

1 active device connected

231

2 active devices connected

276

3 active devices connected

318

4 active devices connected

362

5 active devices connected

400

6 active devices connected

446

7 active devices connected

492

Table 37:

Static characteristics: digital input and outputs[1]

VCC = 3.0 V to 3.6 V; Tamb = −40 °Cto+70 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Digital input pins

VIL

LOW-level input voltage

0.8

VIH

HIGH-level input voltage

2.0

ILI

input leakage current

−1-

µA

Schmitt-trigger input pins

Vth(LH)

positive-going threshold voltage

1.4

1.9

Vth(HL)

negative-going threshold voltage

0.9

1.5

Vhys

hysteresis voltage

0.4

0.7

Overcurrent detection pins OC1_N to OC7_N

∆Vtrip

overcurrent detection trip voltage

∆V=VCC − VOCn_N

-84

Digital output pins

VOL

LOW-level output voltage

0.4

VOH

HIGH-level output voltage

2.4

Open-drain output pins

IOZ

OFF-state output current

−1-

µA

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