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Philips Semiconductors
Table 29: Static characteristics: analog I/O pins (D+, D−)
V
= 4.0 to 5.5 V; V
= 0 V; T
CC
GND
Symbol
Parameter
Input levels
V
differential input sensitivity
DI
V
differential common mode
CM
voltage
V
LOW-level input voltage
IL
V
HIGH-level input voltage
IH
Output levels
V
LOW-level output voltage
OL
V
HIGH-level output voltage
OH
Leakage current
I
OFF-state leakage current
LZ
Capacitance
C
transceiver capacitance
IN
Resistance
[2]
Z
driver output impedance
DRV
Z
input impedance
INP
Termination
[3]
V
termination voltage for
TERM
upstream port pull-up (R
[1]
D+ is the USB positive data pin (DPn); D− is the USB negative data pin (DMn).
Includes external resistors of 20 Ω ±1% on both D+ and D−.
[2]
[3]
This voltage is available at pin V
[4]
In 'suspend' mode the minimum voltage is 2.7 V.
15. Dynamic characteristics
Table 30: Dynamic characteristics
V
= 4.0 to 5.5 V; V
= 0 V; T
CC
GND
Symbol
Parameter
Reset
t
pulse width on input RESET
W(RESET)
Crystal oscillator
f
crystal frequency
XTAL
[1]
Dependent on the crystal oscillator start-up time.
9397 750 08958
Product data
= − 40 to + 85 ° C; unless otherwise specified.
amb
Conditions
|V
− V
I(D+)
I(D−)
includes V
DI
= 1.5 kΩ to +3.6V
R
L
R
= 15 kΩ to GND
L
pin to GND
steady-state drive
)
PU
.
reg(3.3)
= − 40 to + 85 ° C; unless otherwise specified.
amb
Conditions
crystal oscillator running
crystal oscillator stopped
Rev. 03 — 30 October 2001
[1]
Min
|
0.2
range
0.8
-
2.0
-
2.8
-
-
28
10
[4]
3.0
Min
10
-
-
ISP1122A
USB stand-alone hub
Typ
Max
-
-
-
2.5
-
0.8
-
-
-
0.3
-
3.6
±10
-
-
20
-
44
-
-
-
3.6
Typ
Max
-
-
[1]
2
-
6
-
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
Unit
V
V
V
V
V
V
µA
pF
Ω
MΩ
V
Unit
µs
ms
MHz
32 of 48
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