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BU4028B データシートの表示(PDF) - ROHM Semiconductor
部品番号
コンポーネント説明
メーカー
BU4028B
BCD-to-decimal decoder
ROHM Semiconductor
BU4028B Datasheet PDF : 6 Pages
1
2
3
4
5
6
Standard ICs
•
Measurement circuits
10
13
TABLE
12
V
IN
11
V
DD
16
V
DD
Q
0
3
A
Q
1
14
Q
2
2
B
Q
3
15
Q
4
1
C
Q
5
6
Q
6
7
D
Q
7
4
Q
8
9
V
SS
Q
9
5
V
SS
Fig. 1 DC characteristics measurement circuit
BA4028B
TEST
NO.
A
INPUT
B
C
OUTPUT
D Pos. Neg.
1
V
IN
V
SS
V
SS
V
SS
Q
1
Q
0
2
V
SS
V
IN
V
DD
V
SS
Q
6
Q
4
3
V
DD
V
DD
V
IN
V
SS
Q
7
Q
3
4
V
DD
V
SS
V
SS
V
IN
Q
9
Q
1
5
V
SS
V
IN
V
SS
V
SS
Q
2
Q
0
6
V
DD
V
SS
V
IN
V
SS
Q
5
Q
1
7
V
SS
V
SS
V
SS
V
IN
Q
8
Q
0
8
V
SS
V
SS
V
IN
V
SS
Q
4
Q
0
9
V
IN
V
DD
V
SS
V
SS
Q
3
Q
2
V
IN
V
DD
16
V
DD
Q
0
3
10
A
Q
1
14
TABLE
13
B
12
C
Q
2
2
Q
3
15
Q
4
1
Q
5
6
P.G.
Q
6
7
11
D
Q
7
4
Q
8
9
Q
9
5
V
SS
OUTPUT
Pos.
OUTPUT
Neg.
8
Note: Connect C
L
= 50pF to each output pin.
V
SS
Fig. 2 Switching characteristics measurement circuit
20ns
20ns
V
DD
Input
90%
50%
GND
10%
t
PHL
t
PLH
Neg.
Output
90%
50%
Pos.
10%
t
TLH
t
THL
Fig. 3 Switching time test waveform
TEST
NO.
1
2
3
4
5
6
7
8
9
A
P.G.
V
SS
V
DD
V
DD
V
SS
V
DD
V
SS
V
SS
P.G.
INPUT
B
C
V
SS
V
SS
P.G. V
DD
V
DD
P.G.
V
SS
V
SS
P.G. V
SS
V
SS
P.G.
V
SS
V
SS
V
SS
P.G.
V
DD
V
SS
D
V
SS
V
SS
V
SS
P.G.
V
SS
V
SS
P.G.
V
SS
V
SS
OUTPUT
Pos. Neg.
Q
1
Q
0
Q
6
Q
4
Q
7
Q
3
Q
9
Q
1
Q
2
Q
0
Q
5
Q
1
Q
8
Q
0
Q
4
Q
0
Q
3
Q
2
5
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