參數資料
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: 3/19頁
文件大?。?/td> 260K
代理商: CM220
CM220
Updateable USB2.0 Card Reader Controller
Date: 8/2/2005
Version:
1.4
- 11 -
5.ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
SYMBOL
PARAMETER
RATING
UNITS
VCC
Power Supply
-0.3 to VCC+0.3
V
Input Voltage of 3.3V I/O
-0.3 to VCC3I+0.3
V
VIN3
Input Voltage of 3.3V I/O with 5V
Tolerance
-0.3 to 5.5
V
TSTG
Storage Temperature
-40 to 150
Recommended Operating Conditions
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
VCCK
Core Power Supply
2.25
2.5
2.75
V
VCC3V
Power Supply 3.3V I/O
3.0
3.3
3.6
V
VIN
Input Voltage of 3.3V I/O with 5V
Tolerance
0
3.3
5.25
V
Tj
Commercial Junction Operating
Temperature
0
115
DC Characteristcs of 3.3V I/O cells
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V25
Regulator output voltage
VCC=3.3V
2.2
2.5
2.7
V
V25Iload
Regulator driving current
VCC=3.3V
150
mA
VIL
Input Low Voltage
0.8
V
VIH
Input High Voltage
LVTTL
2.0
V
Vt-
Schmitt Trigger Negative Going
Threshold Voltage
0.8
1.1
V
Vt+
Schmitt Trigger Positive Going
Threshold Voltage
LVTTL
1.6
2.0
V
VOL
Output Low Voltage
I
OL
=2 ~ 16mA
0.4
V
VOH
Output High Voltage
I
OH
=2 ~ 16mA
2.4
V
Rpu
Input Pull-Up Resistance
PU=high,PD=low
40
75
190
K
Rpd
Input Pull-Down Resistance
PU=low,PD=high
40
75
190
K
IIL
Input Leakage Current
Vin=VCC3I or 0
-10
±1
10
A
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