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參數(shù)資料
| 型號： | CM220 |
| 廠商： | C-Media Electronics Inc. |
| 英文描述： | Updateable USB2.0 Card Reader Controller |
| 中文描述： | 更新的USB2.0接口讀卡器控制器 |
| 文件頁數(shù)： | 18/19頁 |
| 文件大?。?/td> | 260K |
| 代理商： | CM220 |
CM220
Updateable USB2.0 Card Reader Controller
Date: 8/2/2005
Version:
1.4
- 8 -
NC
29
32
VCC3V(O)
Digital power. Connected to 3.3 V
NC
29
32
VCC3V(I)
Digital power. Connected to 3.3 V
NC
30
33
CFD[1]
DIO, PD
CF card data bus
NC
31
34
CFD[8]
DIO, PD
CF card data bus
NC
32
35
CFD[2]
DIO, PD
CF card data bus
NC
33
36
CFD[9]
DIO, PD
CF card data bus
NC
34
37
CFD[10]
DIO, PD
CF card data bus
NC
35
38
CFCD
DI, PU
CF Card detect pin, low active
NC
36
39
GND(O)
Digital Ground pin
13
37
45
VCC(CORE)
Digital power. Connected to 2.5 V
14
38
47
VDDH
Digital power. Connected to 3.3 V
(Regulator input)
15
39
49
GND(CORE)
Digital Ground pin
16
40
56
VCC_U20
Digital power pin. Connected to 2.5V
power
17
41
57
GND_U20
Analog ground
18
42
58
XSCI
Analog input. Crystal oscillator input 12M
19
43
59
XSCO
Analog output. Crystal oscillator output
12M
20
44
60
VCC3O_U20
Analog power pin. Connected to 3.3V
power
20
44
60
VCCHSR
Analog power pin. Connected to 3.3V
power
20
44
60
VCCHST
Analog power pin. Connected to 3.3V
power
21
45
61
GND_U20
Analog ground
22
46
62
RREF
Analog input.
Connects external reference resistor (12.1k
+- 1%) to
Analog GND
23
47
63
DM
Bidirection pin, USB 2.0 data in data
negative pin terminal
24
48
64
DP
Bidirection pin, USB 2.0 data in data
positive pin terminal
25
49
65
GND_U20
Analog ground
26
50
66
RPU
Connects external register (1.5K+- 1.5%) to
analog 3.3V
27
51
67
DMRS
USB 1.1 data in data negative pin terminal
28
52
68
DPRS
USB 1.1 data in data positive pin terminal
29
53
69
VCC3I_U20
Analog power pin. Connected to 3.3V
power
29
53
69
VCC3O_U20
Analog power pin. Connected to 3.3V
power
30
54
70
GND_U20
Analog ground
31
55
71
VCCA
PHY power in for analog. Connected to
3.3V
NC
56
72
GND(O)
Digital Ground pin
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