Philips Semiconductors
Product specification
Octal D-type transparent latch; 3-state
74HC/HCT573
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
TEST CONDITIONS
74HC
SYMBOL PARAMETER
UNIT
VCC
(V)
+25
−40 to +85 −40 to +125
WAVEFORMS
min. typ. max. min. max. min. max.
tPHL/ tPLH propagation delay
Dn to Qn
47
17
14
150
30
26
190
38
33
225
45
38
ns
ns
ns
ns
ns
ns
ns
ns
2.0 Fig.6
4.5
6.0
t
t
t
t
PHL/ tPLH propagation delay
LE to Qn
50
18
14
150
30
26
190
38
33
225
45
38
2.0 Fig.7
4.5
6.0
PZH/ tPZL 3-state output enable
time OE to Qn
44
16
13
140
28
24
175
35
30
210
42
36
2.0 Fig.8
4.5
6.0
PHZ/ tPLZ 3-state output disable
time OE to Qn
55
20
16
150
30
26
190
38
33
225
45
38
2.0 Fig.8
4.5
6.0
THL/ tTLH output transition time
14
5
4
60
12
10
75
15
13
90
18
15
2.0 Fig.6
4.5
6.0
tW
tsu
th
enable pulse width
HIGH
80
16
14
14
5
4
100
20
17
120
24
20
2.0 Fig.7
4.5
6.0
set-up time
Dn to LE
50
10
9
11
4
3
65
13
11
75
15
13
2.0 Fig.9
4.5
6.0
hold time
Dn to LE
5
5
5
3
1
1
5
5
5
5
5
5
2.0 Fig.9
4.5
6.0
December 1990
5
NXP [ NXP ]
