Standard ics bu4s81 – Rainbow Electronics BU4S81 User Manual
Page 3
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3
Standard ICs
BU4S81
Switching characteristics (unless otherwise noted, Ta = 25°C, 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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