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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data Rev. 03 — 24 November 2004 34 of 53
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
13. Limiting values
[1] Valid only when supply voltage is present.
[2] Test method available on request.
[3] Equivalent to discharging a 100 pF capacitor via a 1.5 kΩ resistor (Human Body Model).
14. Recommended operating conditions
[1] All internal pull-up resistors are connected to this voltage.
Table 34: Absolute maximum ratings
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage 3.3 V −0.5 +4.6 V
V
REF(5V0)
input reference voltage 5.0 V −0.5 +6.0 V
V
I(5V0)
input voltage on 5 V buffers 3.0 V < V
CC
< 3.6 V
[1]
−0.5 +6.0 V
V
I(3V3)
input voltage on 3.3 V buffers 3.0 V < V
CC
< 3.6 V −0.5 +4.6 V
V
O(3V3)
output voltage on 3.3 V buffers −0.5 +4.6 V
I
lu
latch-up current V
I
< 0 or V
I
>V
CC
- 100 mA
V
esd
electrostatic discharge voltage on pins DM1 to DM7, DP1 to DP7,
OC1_N to OC7_N, and all
V
REF(5V0)
and GND pins; I
LI
<1µA
[2][3]
−4000 +4000 V
on all other pins; I
LI
<1µA
[2][3]
−2000 +2000 V
T
stg
storage temperature −40 +125 °C
Table 35: Recommended operating ranges
Symbol Parameter Min Typ Max Unit
V
CC
supply voltage 3.3 V 3.0 3.3 3.6 V
V
REF(5V0)
input reference voltage 5.0 V
[1]
4.5 5.0 5.5 V
V
I(3V3)
input voltage on 3.3 V pins 0 - V
CC
V
V
I(5V0)
input voltage on 5 V tolerant pins 0 - V
REF(5V0)
V
T
amb
ambient temperature −40 - +70 °C