Rainbow Electronics BU4028B - Manual (Page 5)

5
Standard ICs BA4028B
•
Measurement circuits
V DD
V DD
V SS
V SS
V IN
TABLE
3 Q 0
A
10
16
B
13
C
12
D
11
14 Q 1
2 Q 2
15 Q 3
1 Q 4
6 Q 5
7 Q 6
4 Q 7
9 Q 8
5 Q 9
Fig. 1 DC characteristics measurement circuit
TEST
NO.
INPUT OUTPUT
A B C D Pos. Neg.
1 V
IN
V
SS
V
SS
V
SS
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
2 V
SS
V
IN
V
DD
V
SS
3 V
DD
V
DD
V
IN
V
SS
4 V
DD
V
SS
V
SS
V
IN
5 V
SS
V
IN
V
SS
V
SS
6 V
DD
V
SS
V
IN
V
SS
7 V
SS
V
SS
V
SS
V
IN
8 V
SS
V
SS
V
IN
V
SS
9 V
IN
V
DD
V
SS
V
SS
V IN
OUTPUT
Pos.
OUTPUT
Neg.
V DD
TABLE
3
A
10
16
B
13
C
12
D
11
14
2
15
1
6
7
4
9
5
P.G.
Note: Connect C L = 50pF to each output pin.
8
V DD
V SS
V SS
Q 0
Q 1
Q 2
Q 3
Q 4
Q 5
Q 6
Q 7
Q 8
Q 9
Fig. 2 Switching characteristics measurement circuit
90%
50%
10%
20ns 20ns
90%
50%
10%
t PHL
V DD
Input
GND
Neg.
Pos.
Output
t THL
t PLH
t TLH
Fig. 3 Switching time test waveform
TEST
NO.
INPUT OUTPUT
A B C D Pos. Neg.
1
2
3
4
5
6
7
8
9
P.G. V
SS
V
SS
V
SS
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
V
SS
P.G. V
DD
V
SS
V
DD
V
DD
P.G. V
SS
V
DD
V
SS
V
SS
P.G.
V
SS
P.G. V
SS
V
SS
V
DD
V
SS
P.G. V
SS
V
SS
V
SS
V
SS
P.G.
V
SS
V
SS
P.G. V
SS
P.G. V
DD
V
SS
V
SS