Rainbow Electronics BU4S71 - Manual (Page 3)

3
Standard ICs BU4S71
Parameter Symbol Min. Typ. Max. Unit
Measurement
circuit
t
TLH
— 70 200 ns 5
— Fig.2 — 35 100 ns 10
— 30 80 ns 15
t
THL
— 70 200 ns 5
—
Fig.2
— 35 100 ns 10
— 30 80 ns 15
t
PLH
— 90 200 ns 5
— — 45 100 ns 10
— 30 80 ns 15
t
PHL
— 90 200 ns 5
— — 45 100 ns 10
— 30 80 ns 15
Conditions
V
DD
(V)
Output rise time
Output fall time
Propagation delay time
Switching characteristics (unless otherwise noted, V
SS
= 0V, Ta = 25°C, C
L
= 50pF)
•
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
Input waveform
Output waveform
Fig. 2 Switching characteristics measurement circuit