SM5009 series
Load cct 1
Load cct 2
Q output
R
C
L
Q output
(Including probe
CL
capacitance)
(Including probe
capacitance)
C = 15pF: DUTY, I , t , t
L
R = 400Ω
C = 15pF: DUTY, I , t , t
DD r1 f1
DD
r
f
L
C = 30pF: t , t
L
C = 50pF: t , t
r2 f2
L
r3 f3
Switching Time Measurement Waveform
Output duty level (CMOS)
0.9VDD
Q output
0.9VDD
0.1VDD
DUTY measurement
voltage (0.5VDD)
0.1VDD
TW
tr
tf
Output duty level (TTL)
DUTY measurement
voltage (1.4V)
2.4V
2.4V
0.4V
Q output
0.4V
TW
tr
tf
Output duty cycle (CMOS)
DUTY measurement
voltage (0.5VDD)
Q output
TW
DUTY= TW/ T 100 (%)
T
Output duty cycle (TTL)
DUTY measurement
voltage (1.4V)
Q output
TW
DUTY= TW/ T 100 (%)
T
SEIKO NPC CORPORATION —18
SEIKO [ SEIKO EPSON CORPORATION ]
