CD74HC157, CD74HCT157, CD74HC158, CD74HCT158
Switching Specifications
Input t
r
, t
f
= 6ns
PARAMETER
Enable to Output
SYMBOL
(Continued)
V
CC
(V)
2
4.5
HC157
HCT157
C
L
= 50pF
Select to Output
t
PLH,
t
PHL
C
L
= 50pF
6
2
4.5
HC157
HCT157
C
L
= 50pF
Power Dissipation
Capacitance (Notes 4, 5)
HC157
HCT157
HC/HCT158 TYPES
Data to Output
t
PLH,
t
PHL
C
L
= 50pF
2
4.5
HC158
HCT 158
C
L
= 50pF
Enable to Output
t
PLH,
t
PHL
C
L
= 50pF
6
2
4.5
HC158
HCT 158
C
L
= 50pF
Select to Output
t
PLH,
t
PHL
C
L
= 50pF
6
2
4.5
HC158
HCT 158
C
L
= 50pF
Output Transition Time
t
TLH,
t
THL
C
L
= 50pF
6
2
4.5
6
Power Dissipation
Capacitance (Notes 4, 5)
HC158
HCT 158
Input Capacitance
NOTES:
4. C
PD
is used to determine the dynamic power consumption, per multiplexer.
5. P
D
= V
CC2
f
i
(C
PD
+ C
L
) where f
i
= input frequency, C
L
= output load capacitance, V
CC
= supply voltage.
C
IN
C
L
= 50pF
-
C
PD
-
5
-
-
-
35
35
-
-
-
10
-
-
-
-
-
10
-
-
-
-
-
10
pF
pF
pF
C
L
=15pF
5
C
L
=15pF
5
C
L
=15pF
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
11
13
-
-
-
13
15
-
-
-
12
14
-
-
-
-
140
28
-
-
24
160
32
-
-
27
150
30
-
-
26
75
15
13
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
175
35
-
-
30
200
40
-
-
34
190
38
-
-
33
95
19
16
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
210
42
-
-
36
240
48
-
-
41
225
45
-
-
38
110
22
19
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
C
PD
-
6
5
-
-
62
70
-
-
-
-
-
-
-
-
-
-
pF
pF
C
L
=15pF
5
C
L
=15pF
5
25
o
C
MIN
-
-
-
-
-
-
-
-
-
-
TYP
-
-
11
12
-
-
-
12
15
-
MAX
135
27
-
-
23
145
29
-
-
25
-40
o
C TO 85
o
C
MIN
-
-
-
-
-
-
-
-
-
-
MAX
170
34
-
-
29
180
36
-
-
31
-55
o
C TO 125
o
C
MIN
-
-
-
-
-
-
-
-
-
-
MAX
205
41
-
-
35
220
44
-
-
38
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TEST
CONDITIONS
t
PLH,
t
PHL
C
L
= 50pF
5
HARRIS [ HARRIS CORPORATION ]
