Rainbow Electronics BU4081BFV - Manual (Page 3)

3
Standard ICs BU4081B / BU4081BF / BU4081BFV
Switching characteristics (unless otherwise noted, V
SS
= 0V, Ta = 25°C, C
L
= 50pF)
Parameter Symbol Min. Typ. Max. Conditions
Measurement
circuit
t
TLH
— 180 —
ns
5
— Fig.2 — 90 — 10
— 65 — 15
t
THL
— 100 —
ns
5
— Fig.2 — 50 — 10
— 40 — 15
“L” to “H”
Propagation delay time
t
PLH
— 160 —
ns
5
— Fig.2 — 65 — 10
— 50 — 15
“H” to “L”
Propagation delay time
t
PHL
— 160 —
ns
5
— Fig.2 — 65 — 10
— 50 — 15
Input capacitance C
IN
— 5 — pF — — —
V
DD
(V)
Unit
Output rise time
Output fall time
•
Measurement circuits
V
A
V DD
GND
Fig. 1 DC characteristics
P.G.
V DD
GND
C L = 50pF
90%
50%
10%
20ns 20ns
V DD
V SS
V OH
V OL
Input waveform
Output waveform
90%
50%
10%
t PLH
t PHL
t THL t TLH
Fig. 2 Switching characteristics