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參數資料
型號: ISP1122D
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Universal Serial Bus stand-alone hub
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PDSO32
封裝: PLASTIC, SO-32
文件頁數: 32/48頁
文件大小: 1159K
代理商: ISP1122D
Philips Semiconductors
ISP1122
USB stand-alone hub
Product specification
Rev. 03 — 29 March 2000
32 of 48
9397 750 07002
Philips Electronics N.V. 2000. All rights reserved.
[1]
[2]
[3]
[4]
D
+
is the USB positive data pin (DPn); D
is the USB negative data pin (DMn).
Includes external resistors of 20
±
1% on both D
+
and D
.
This voltage is available at pin V
reg(3.3)
.
In ‘suspend’ mode the minimum voltage is 2.7 V.
15. Dynamic characteristics
[1]
Dependent on the crystal oscillator start-up time.
Table 29: Static characteristics: analog I/O pins (D
+
, D
)
[1]
V
CC
= 4.0 to 5.5 V; V
GND
= 0 V; T
amb
=
40 to
+
85
°
C; unless otherwise specified.
Symbol
Parameter
Input levels
V
DI
differential input sensitivity
V
CM
differential common mode
voltage
V
IL
LOW-level input voltage
V
IH
HIGH-level input voltage
Output levels
V
OL
LOW-level output voltage
V
OH
HIGH-level output voltage
Leakage current
I
LZ
OFF-state leakage current
Capacitance
C
IN
transceiver capacitance
Resistance
Z
DRV
[2]
driver output impedance
Z
INP
input impedance
Termination
V
TERM
[3]
termination voltage for
upstream port pull-up (R
PU
)
Conditions
Min
Typ
Max
Unit
|
V
I(D
+
)
V
I(D
)
|
includes V
DI
range
0.2
0.8
-
-
-
2.5
V
V
-
2.0
-
-
0.8
-
V
V
R
L
= 1.5 k
to
+
3.6V
R
L
= 15 k
to GND
-
2.8
-
-
0.3
3.6
V
V
-
-
±
10
μ
A
pin to GND
-
-
20
pF
steady-state drive
28
10
-
-
44
-
M
3.0
[4]
-
3.6
V
Table 30: Dynamic characteristics
V
CC
= 4.0 to 5.5 V; V
GND
= 0 V; T
amb
=
40 to
+
85
°
C; unless otherwise specified.
Symbol
Parameter
Reset
t
W(RESET)
pulse width on input RESET
Conditions
Min
Typ
Max
Unit
crystal oscillator running
crystal oscillator stopped
10
-
-
2
[1]
-
-
μ
s
ms
Crystal oscillator
f
XTAL
crystal frequency
-
6
-
MHz
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