Rainbow Electronics BU4SU69 - Manual (Page 3)

3
Standard ICs BU4SU69
Switching characteristics (unless otherwise noted, V
SS
= 0V, Ta = 25°C, C
L
= 50pF)
Parameter Symbol Min. Typ. Max. Unit
Measurement
circuit V
DD
(V)
Output rise time t TLH
— 70 — ns 5
—
Fig.2
— 35 — ns 10
— 30 — ns 15
Output fall time t
THL
— 70 — ns 5
— — 35 — ns 10
— 30 — ns 15
Propagation delay time
t
PLH
— 55 — ns 5
— — 30 — ns 10
— 25 — ns 15
t
PHL
— 55 — ns 5
— — 30 — ns 10
— 25 — ns 15
Input capacitance C
IN
— 5 — pF 5 — —
Conditions
•
Measurement circuits
V
A
V DD
V SS
Fig.1 DC characteristics measurement circuit
V DD
V SS
P.G
C L
t THL t TLH
Output
Input
20ns 20ns
90%
50%
10%
90%
50%
10%
t PLH t PHL
V DD
V SS
V OH
V OL
Fig.2 Switching characteristics measurement circuit