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參數(shù)資料
| 型號： | μPD72012 |
| 廠商： | NEC Corp. |
| 英文描述： | Hub Controller For USB(集線器控制器) |
| 中文描述： | 集線器控制器的USB（集線器控制器） |
| 文件頁數(shù)： | 7/40頁 |
| 文件大?。?/td> | 342K |
| 代理商： | ΜPD72012 |
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Preliminary Data Sheet S13918EJ2V0DS00
7
μ
PD72012
1. PIN FUNCTIONS
1.1 List of Pin Functions
(1/3)
Pin No.
Note
Pin Name
I/O
Signal Name
Function
1(6)
RST
I
RESET
Inputs reset signals.
2(7)
UD0
I/O
Data0
Connects to upstream port #0 D+ signal line.
Actually, pull up to 3.3-V line using 1.5 k
.
3(8)
UD1
I/O
Data1
Connects to upstream port #0 D- signal line.
4(9)
D10
I/O
Data0
Connects to downstream port #1 D+ signal line.
Pull down to GND using 15 k
.
5(10)
D11
I/O
Data1
Connects to downstream port #1 D- signal line.
Pull down to GND using 15 k
.
6(11)
DGND
-
DGND
Connect to digital GND.
7(12)
D20
I/O
Data0
Connects to downstream port #2 D+ signal line.
Pull down to GND using 15 k
.
8(13)
D21
I/O
Data1
Connects to downstream port #2 D- signal line.
Pull down to GND using 15 k
.
9(14)
D30
I/O
Data0
Connects to downstream port #3 D+ signal line.
Pull down to GND using 15 k
.
10(15)
D31
I/O
Data1
Connects to downstream port #3 D- signal line.
Pull down to GND using 15 k
.
11(16,
17)
DGND
-
DGND
Connect to digital GND.
This pin is used as both pins 16 and 17 internally in the QFP product.
12(18)
D40
I/O
Data0
Connects to downstream port #4 D+ signal line.
Pull down to GND using 15 k
.
13(19)
D41
I/O
Data1
Connects to downstream port #4 D- signal line.
Pull down to GND using 15 k
.
14(20)
D50
I/O
Data0
Connects to downstream port #5 D+ signal line.
Pull down to GND using 15 k
.
15(21)
D51
I/O
Data1
Connects to downstream port #5 D- signal line.
Pull down to GND using 15 k
.
16(22)
DGND
-
DGND
(TS3)
Test pin of
μ
PD72012 (corresponds to TS3 pin in
μ
PD72011). Connect
to digital GND.
17(23)
OSL
O
OSC CTL
Pin that outputs high level on suspend. Can be used by LED switch or to
turn oscillator ON/OFF on suspend.
CAUTION
For self-power, always input an oscillator output signal. If the clock
is cut-off, subsequent operation my not be possible.
Note
QFP pin numbers are shown in ( ).
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