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BU4028B
P1-P3
P4-P6
P7-P7
4
Standard ICs
BA4028B
Switching characteristics (Ta = 25°C, C
L
= 50pF, V
SS
= 0V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Measurement
circuit
t
TLH
—
180
—
ns
5
—
Fig.2, 3
—
90
—
10
—
65
—
15
t
THL
—
100
—
ns
5
—
Fig.2, 3
—
50
—
10
—
40
—
15
“L” to “H” propagation delay time
t
PLH
—
300
—
ns
5
—
Fig.2, 3
—
130
—
10
—
90
—
15
“H” to “L” propagation delay time
t
PHL
—
300
—
ns
5
—
Fig.2, 3
—
130
—
10
—
90
—
15
Input capacitance
C
IN
—
5
—
pF
——
—
V
DD
(V)
Output rise time
Output fall time
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.
1V
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
2V
SS
V
IN
V
DD
V
SS
3V
DD
V
DD
V
IN
V
SS
4V
DD
V
SS
V
SS
V
IN
5V
SS
V
IN
V
SS
V
SS
6V
DD
V
SS
V
IN
V
SS
7V
SS
V
SS
V
SS
V
IN
8V
SS
V
SS
V
IN
V
SS
9V
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
6
Standard ICs
BA4028B
•
Electrical characteristics curve
POWER DISSIPATION: P
d
(mW)
1200
1000
800
600
400
200
0
0
2
55
07
5
1
0
0
1
2
5
1
5
0
AMBIENT TEMPERATURE: Ta (
°
C)
Fig.4 Power dissipation vs. Ta
•
External dimensions (Units: mm)
DIP16
0.51Min.
0.3
±
0.1
9
16
8
1
6.5
±
0.3
3.2
±
0.2
4.25
±
0.3
0.5
±
0.1
19.4
±
0.3
2.54
0
°
~ 15
°
7.62
P1-P3
P4-P6
P7-P7
BU4028B
Mfr. #:
Buy BU4028B
Manufacturer:
ROHM Semiconductor
Description:
Encoders, Decoders, Multiplexers & Demultiplexers RECOMMENDED ALT
Lifecycle:
New from this manufacturer.
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