Datasheet

MOTOROLA CMOS LOGIC DATA
347
MC14508B
Figure 1. AC Waveforms
STROBE
INPUT
D
n
INPUT
Q
n
OUTPUT
t
TLH
t
THL
t
PHL
t
PLH
50% 50%
t
h
t
su
50%
90%
10%
50%
MASTER RESET
INPUT
Q
n
OUTPUT
V
DD
V
SS
V
OH
V
OL
50%
t
WH(R)
t
WH(S)
Figure 2. 3–State AC Test Circuit and Waveforms
Test ST1 ST2 ST3 ST4
t
PHZ
Open Close Close Open
t
PLZ
Close Open Open Close
t
PZL
Close Open Open Close
t
PZH
Open Close Close Open
PULSE
GENERATOR
V
DD
ST3
ST4
V
DD
V
DD
ST1
ST2
C
L
1.0 k
1.0 k
V
SS
MR
ST
DISABLE
D0
D1
D2
D3
Q0
Q1
Q2
Q3
20 ns 20 ns
V
DD
V
SS
V
OH
V
OL
t
PZH
t
PZL
t
PLZ
t
PHZ
DISABLE
Q3 OUTPUT
50%
90%
10%
90%
10%
90%
10%
≈ 2 V @ V
DD
= 5 V
≈ 6 V @ V
DD
= 10 V
≈ 10 V @ V
DD
= 15 V
≈ 2.5 V @ V
DD
= 5 V,
10 V, AND 15 V