1
Standard ICs
Single 2-input AND gate
BU4S81
The BU4S81 is an ultra-compact IC with one dual-input positive logic AND gate BU4081B circuit built into an SMP.
Features
1) Low current dissipation.
2) Super-mini mold package designed for surface
mounting.
3) Wide range of operating power supply voltages.
4) Direct drive of 2 L-TTL inputs and 1 LS-TTL input.
Block diagram
5
4
1
2
3
V
DD
Y
A
B
V
SS
Absolute maximum ratings (Ta = 25C)
Parameter
Symbol
Limits
Unit
V
DD
V
SS
0.3 ~ V
SS
+ 18
V
170
mW
I
IN
10
mA
40 ~ + 85
C
Tstg
55 ~ + 150
C
V
IN
V
SS
0.3 ~ V
DD
+ 0.3
V
Topr
Pd
Power supply voltage
Power dissipation
Input current
Operating temperature
Storage temperature
Input voltage
1 These values indicate the limits at which voltage can be applied to the terminal without
causing destruction, but operation is not guaranteed at these values.
2 Power dissipation is reduced by 1.7mW for each increase in Ta of 1
C over 25
C.
Recommended operating conditions (Ta = 25C, V
SS
= 0V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
V
DD
3
--
16
V
V
IN
0
--
V
DD
V
Power supply voltage
Input voltage
2
Standard ICs
BU4S81
Electrical characteristics
DC characteristics (unless otherwise noted, Ta = 25C, V
SS
= 0V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Measurement
circuit
V
DD
(V)
3.5
2.75
--
V
5
| I
OUT
| < 1
A
Fig.1
7.0
5.5
--
V
10
11.0
8.25
--
V
15
V
IL
--
2.25
1.5
V
5
| I
OUT
| < 1
A
--
4.5
3.0
V
10
--
6.75
4.0
V
15
--
--
0.3
A
18
V
IH
= 18V
I
IL
--
--
0.3
A
18
V
IL
= 0V
4.95
5.0
--
V
5
| I
OUT
| < 1
A
V
IN
= V
SS
or V
DD
9.95
10.0
--
V
10
14.95
15.0
--
V
15
V
OL
--
--
0.05
V
5
| I
OUT
| < 1
A
V
IN
= V
SS
--
--
0.05
V
10
--
--
0.05
V
15
0.51
1.0
--
mA
5
2.1
4.0
--
mA
5
1.3
2.2
--
mA
10
3.4
9.0
--
mA
I
OL
0.51
1.2
--
mA
5
V
OL
= 0.4V
1.3
3.2
--
mA
10
V
OL
= 0.5V
3.4
12.0
--
mA
15
V
OL
= 1.5V
I
DD
--
0.001
0.25
A
5
--
0.001
0.5
A
10
--
0.002
1.0
A
15
Conditions
15
V
IN
= V
SS
or V
DD
I
OH
V
OH
I
IH
V
IH
V
OH
= 13.5V
V
OH
= 9.5V
V
OH
= 2.5V
V
OH
= 4.6V
Input high level voltage
Input low level voltage
Input high level current
Input low level current
Output high level voltage
Output low level voltage
Output high level current
Output low level current
Static current dissipation
3
Standard ICs
BU4S81
Switching characteristics (unless otherwise noted, Ta = 25C, V
SS
= 0V, C
L
= 50pF)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Measurement
circuit
--
70
200
ns
5
--
Fig.2
--
35
100
ns
10
--
30
80
ns
15
--
70
200
ns
5
--
--
35
100
ns
10
--
30
80
ns
15
--
90
200
ns
5
--
--
45
100
ns
10
--
30
80
ns
15
--
90
200
ns
5
--
--
45
100
ns
10
--
30
80
ns
15
V
DD
(V)
t
PLH
t
THL
t
TLH
t
PHL
Output rise time
Output fall time
Propagation delay time
Measurement circuits
V
A
V
DD
V
SS
Fig.1 DC characteristics measurement circuit
V
DD
V
SS
P.G.
C
L
= 50pF
t
TLH
t
THL
20ns
20ns
90%
50%
10%
90%
50%
10%
t
PHL
t
PLH
V
DD
V
SS
V
OH
V
OL
Fig.2 Switching characteristics measurement circuit
Input waveform
Output waveform
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