Owner's manual
3
Standard ICs BU4538B
Parameter Symbol Min. Typ. Max. Unit Conditions
t
TLH
— 100 —
ns
5
—— 50 — 10
— 40 — 15
t
THL
— 100 —
ns
5
—— 50 — 10
— 40 — 15
t
PLH
tPHL
— 300 —
ns
5
—— 150 — 10
— 100 — 15
t
PLH
tPHL
— 250 —
ns
5
—
— 125 — 10
— 95 — 15
t
WIN
— 50 —
ns
5
—— 30 — 10
— 25 — 15
t
WOUT1
185 200 215
µ
s
5
185 200 215 10
185 200 215 15
t
WOUT2
8.8 9.4 10.0
ms
5
8.8 9.4 10.0 10
8.8 9.4 10.0 15
t
rr
— 0 —
ns
5
—— 0 — 10
— 0 — 15
C
IN — 5 — pF ——
C
X = 2000pF, RX = 100kΩ
C
X = 0.1µ
F, R
X = 100kΩ
V
DD
(
V
)
Output rise time
Output fall time
Propagation delay
time A, B to Q, Q
Propagation delay
time C
D to Q, Q
Minimum input
pulse width
Output pulse width 1
Output pulse width 2
Minimum retrigger
time
Input capacitance
Switching characteristics (unless otherwise noted, Ta = 25°C, CL = 50pF, VSS = 0V)
•
Recommended operating conditions
Parameter Symbol Min. Typ. Max. Unit Conditions
R
X 5
—
1000 k
Ω
—
C
X No Limit pF
—
External timing resistance
External timing capacitance





