Rainbow Electronics BU4S11 - Manual (Page 3)

3
Standard ICs BS4S11
Switching characteristics (unless otherwise noted, V
SS
= 0V, Ta = 25°C, C
L
= 50 pF)
Parameter Symbol Min. Typ. Max. Unit
Measurement
circuit V
DD
(V)
Conditions
t
TLH
— 70 — ns 5
—
Fig.2
— 35 — ns 10
— 30 — ns 15
t
THL
— 70 — ns 5
— — 35 — ns 10
— 30 — ns 15
t
PLH
— 85 — ns 5
— — 40 — ns 10
— 30 — ns 15
t
PHL
— 85 — ns 5
— — 40 — ns 10
— — ns 15
C
IN
— 5 — pF 5 — —
30
Output rise time
Output fall time
Propagation delay time
Input capacitance
•
Measurement circuits
V
A
V DD
V SS
Fig.1 DC characteristics measurement circuit
V DD
P.G
C L = 50pF
V SS
t TLH t THL
20ns 20ns
90%
50%
10%
90%
50%
10%
t PHL
V OL
V SS
V DD
t PLH
V OH
Input waveform
Output waveform
Fig.2 Switching characteristics measurement circuit