SM5010 series
Load cct 1
Load cct 2
Q output
R
C
L
Q output
(Including probe
capacitance)
C
L
(Including probe
capacitance)
C = 15pF : DUTY , I , t , t
DD r1 f1
C = 15pF : DUTY, I , t , t
DD r3 f3
L
C = 30pF : t , t
L
C = 50pF : t , t
L
C = 50pF : t , t
r4 f4
L
r5 f5
R = 400Ω
L
r2 f2
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 —23
NPC [ NIPPON PRECISION CIRCUITS INC ]
