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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data Rev. 03 — 24 November 2004 35 of 53
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
15. Static characteristics
[1] Irrespective of the number of devices connected, the value of I
CC
is always 91 mA in full-speed.
[2] Including R
pu
drop current.
[1] All pins are 5 V tolerant.
Table 36: Static characteristics: supply pins
V
CC
= 3.0 V to 3.6 V; T
amb
=
−
40
°
Cto+70
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Full-speed
I
REF(5V0)
supply current 5 V - 0.5 - mA
I
CC(tot)
total supply current 3.3 V I
CC(tot)
=I
CC1
+I
CC2
+I
CC3
+I
CC4
[1]
-91-mA
High-speed
I
CC(tot)
total supply current 3.3 V suspend mode; internal clock stopped
[2]
- 0.5 - mA
no device connected - 183 - mA
1 active device connected - 231 - mA
2 active devices connected - 276 - mA
3 active devices connected - 318 - mA
4 active devices connected - 362 - mA
5 active devices connected - 400 - mA
6 active devices connected - 446 - mA
7 active devices connected - 492 - mA
Table 37: Static characteristics: digital input and outputs
[1]
V
CC
= 3.0 V to 3.6 V; T
amb
=
−
40
°
Cto+70
°
C; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Digital input pins
V
IL
LOW-level input voltage - - 0.8 V
V
IH
HIGH-level input voltage 2.0 - - V
I
LI
input leakage current −1- +1µA
Schmitt-trigger input pins
V
th(LH)
positive-going threshold voltage 1.4 - 1.9 V
V
th(HL)
negative-going threshold voltage 0.9 - 1.5 V
V
hys
hysteresis voltage 0.4 - 0.7 V
Overcurrent detection pins OC1_N to OC7_N
∆V
trip
overcurrent detection trip voltage ∆V=V
CC
− V
OCn_N
-84-mV
Digital output pins
V
OL
LOW-level output voltage - - 0.4 V
V
OH
HIGH-level output voltage 2.4 - - V
Open-drain output pins
I
OZ
OFF-state output current −1- +1µA