Motorola CMOS Logic Manual page 280

PULSE
GENERATOR
INH
A A
B A
C A
D A
B
S1
E A
A B
A
B B
C B
D B
E B
PULSE
DIS
GENERATOR
MC14506UB
6–242
V DD
16
INH Z A
A A
B A
C A
D A
E A
A B
B B
C B
D B
E B
DIS Z B
C L C L
8 V SS
Figure 6. Switching Time Test Circuit and Waveforms
(Data Inputs)
V DD V out V DD
16
Z A
C L
1 k
A
S2
B
Z B
8 V SS
* To test other side of circuit connect to this output and
change switch (S1) to other expand input (E).
SWITCH POSITIONS
TEST
t PLZ
t PHZ
t PZL
t PZH
Figure 7. Switching Time Test Circuit and Waveforms
(For 3–State Output)
20 ns
90%
INPUT
50%
10%
OUTPUT
t THL
20 ns
90%
DISABLE
50%
INPUT
10%
t PLZ
10%
t PHZ
OUTPUT
90%
S1 S2
A A
B B
A A
B B
MOTOROLA CMOS LOGIC DATA
20 ns
V DD
V SS
t PLH
t PHL
V OH
90%
50%
10%
V OL
t TLH
20 ns
t PZL
V OH
90%
2.5 V @ V DD = 5 V,
10 V AND 15 V
2 V @ V DD = 5 V
t PZH
6 V @ V DD = 10 V
10 V @ V DD = 15 V
10%
V OL