CD40208BMS 查看數據表（PDF） - Intersil
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CD40208BMS Datasheet PDF : 11 Pages
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CD40208BMS
WRITE WRITE
CLOCK ENABLE 1
1
S1
1
S1
X
X
X
1
0
WRITE
0
S2
S2
X
0
READ
1A
S1
S1
X
0
TRUTH TABLE
READ READ READ
0A
1B
0B
S2
S1
S2
S2
S1
S2
X
X
X
1
1
0
0
0
0
0
1
1
0
X
X
X
X
1
0
0
1
X
X
X
X
X
X
X
1 = High Level; 0 = Low Level; X = Don’t Care; Z = High Impedance
NOTE: S1 and S2 refer to input states of either 1 or 0.
ENABLE ENABLE
A
B
Dn
1
11
1
10
0
0X
1
1 Dn to
Word 0
1
1 Word 0
Not
Altered
1
1X
1
1X
QnA
1
0
Z
Word 1
Out
Word 1
Out
Word 2
Out
NC
QnB
1
0
Z
Word 2
Out
Word 2
Out
Word 1
Out
NC
Typical Performance Characteristics
AMBIENT TEMPERATURE (TA) = +25oC
AMBIENT TEMPERATURE (TA) = +25oC
30
GATE-TO-SOURCE VOLTAGE (VGS) = 15V
25
20
15
10V
10
5
5V
0
5
10
15
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
FIGURE 3. TYPICAL OUTPUT LOW (SINK) CURRENT CHAR-
ACTERISTICS
15.0
GATE-TO-SOURCE VOLTAGE (VGS) = 15V
12.5
10.0
10V
7.5
5.0
2.5
5V
0
5
10
15
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
FIGURE 4. MINIMUM OUTPUT LOW (SINK) CURRENT CHAR-
ACTERISTICS
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
-15
-10
-5
AMBIENT TEMPERATURE (TA) = +25oC
GATE-TO-SOURCE VOLTAGE (VGS) = -5V
-10V
-15V
0
0
-5
-10
-15
-20
-25
-30
DRAIN-TO-SOURCE VOLTAGE (VDS) (V)
-15
-10
-5
AMBIENT TEMPERATURE (TA) = +25oC
GATE-TO-SOURCE VOLTAGE (VGS) = -5V
-10V
-15V
0
0
-5
-10
-15
FIGURE 5. TYPICAL OUTPUT HIGH (SOURCE) CURRENT
CHARACTERISTICS
FIGURE 6. MINIMUM OUTPUT HIGH (SOURCE) CURRENT
CHARACTERISTICS
7-1438
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