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參數(shù)資料
| 型號(hào)： | W-20 |
| 元件分類： | 保險(xiǎn)絲 |
| 英文描述： | Fuse |
| 中文描述： | 保險(xiǎn)絲 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 211K |
| 代理商： | W-20 |
Preliminary W81181D/AD
Publication Release Date: October 1999
- 9 -
Revision A1
Pin Description ( W81181D ), continued
PIN
NUMBER
PAD NAME
I/O
TYPE
PIN FUNCTION
PULL UP/
DOWN
-
21
XTAL2
OSCM
Crystal OUT. For 12 MHz oscillation.
22
VDD
Power1
Digital supply voltage.
23
EXTPUEN
O2
External pull-up connection control.
O
24
OCP4_
IUD2T
Downstream port4 over-current status. Active low.
-
25
PWEN4_
O2
Downstream port4 power control. Active low.
O
26
OCP3_
IUD2T
Downstream port3 over-current status. Active low.
-
27
PWEN3_
O2
Downstream port3 power control. Active low.
O
28
LEDEN0_
IOU2P
Upstream port0 LED. Active low to drive
bright/blinking LED when upstream port0 enable.
O
29
OCP2_
IUD2T
Downstream port2 over-current status. Active low.
-
30
PWEN2_
O2
Downstream port2 power control. Active low.
O
31
GND
Power0
Digital ground.
32
OCP1_
IUD2T
Downstream port1 over-current LED. Active low.
-
33
PWEN1_
O2
Downstream port1 power control. Active low.
O
34
FWKP5
IUD2
Embedded function wake-up input.
D
35
P1[2]/
FSUSP5/
PWRDET
IOUD2
Normally, this pin is a P12 and used as embedded
function suspend control. If no embedded function
this pin is self-powered (High) or bus-powered
(Low) hub setting.
36
GND3V
Power0
Ground of port3 and port4 transceivers.
-
37
DP4
AIO
USB D+ for downstream port4.
-
38
DM4
AIO
USB D- for downstream port4.
-
39
DP3
AIO
USB D+ for downstream port3.
-
40
DM3
AIO
USB D- for downstream port3.
-
41
GND3V
Power0
Ground of port1 and port2 transceivers.
-
42
DP2
AIO
USB D+ for downstream port2.
-
43
DM2
AIO
USB D- for downstream port2.
-
44
DP1
AIO
USB D+ for downstream port1.
-
45
DM1
AIO
USB D- for downstream port1.
-
46
GND3V
Power0
Ground of port0 transceivers.
-
47
DP0
AIO
USB D+ for upstream port0.
-
48
DM0
AIO
USB D- for upstream port0.
-
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