Motorola CMOS Logic Manual page 496

PROGRAMMABLE
PULSE
GENERATOR
NOTE: Assume 10 Counter at "6" and
MC14566B
6–458
V DD
C A Q0 A
Q1 A
C B
Q2 A
RESET
Q3 A
5/ 6
Q0 B
CONTROL
Q1 B
B
Q2 B
A Q m
V SS
5/ 6 Counter at "2" at beginning of sequence.
20 ns
10 OR 5/ 6 90%
10%
CLOCK AND B
f cl
RESET
t PLH
Q3 A OR
Q2 B
t PLH
50%
Q m
t WH(Q m )
Figure 2. Switching Time Test Circuit and Waveforms
C L C L C L C L C L
t WH(cl)
50%
20 ns
90%
50%
10%
t WH(R)
t PHL
90%
50%
10%
t TLH
t THL
50%
t WH Q m
MOTOROLA CMOS LOGIC DATA
C L C L C L