Datasheet
MOTOROLA CMOS LOGIC DATAMC14014B MC14021B
54
Figure 3. Power Dissipation Test Circuit and Waveform
PULSE
GENERATOR 1
V
DD
P/S
C
P6
P7
P8
D
S
Q8
Q7
Q6
PULSE
GENERATOR 2
500
µ
F I
D
0.01
µ
F
CERAMIC
C
L
C
L
C
L
V
SS
P5
P4
P3
P2
P1
CLOCK
DATA
50%
1
f
Figure 4. Switching Time Test Circuit and Waveforms
PULSE
GENERATOR 1
PULSE
GENERATOR 2
V
DD
1
2
22
1 1
V
DD
V
SS
SW 1
SW 2
C
L
Q8
Q7
Q6
P/S
C
P6
P7
P8
D
S
P5
P4
P3
P2
P1
V
DD
V
SS
V
DD
V
SS
V
OH
V
OL
20 ns 20 ns
PARALLEL OR
SERIAL DATA
INPUT
CLOCK OR P/S
INPUT
Q
OUTPUT
90%
50%
10%
t
su
t
WH
t
THL
90%
50%
10%
t
WH
t
WL
t
PLH
t
PHL
90%
50%
10%
t
TLH
t
THL
t
WL
= t
WH
= 50% DUTY CYCLE
SWITCH POSITION 1 = PARALLEL IN
SWITCH POSITION 2 = SERIAL IN