INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
•
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
•
The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
•
The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT151
8-input multiplexer
Product specification
File under Integrated Circuits, IC06
December 1990
Philips Semiconductors
Product specification
8-input multiplexer
FEATURES
•
True and complement outputs
•
Multifunction capability
•
Permits multiplexing from n lines to 1 line
•
Non-inverting data path
•
See the “251” for the 3-state version
•
Output capability: standard
•
I
CC
category: MSI
GENERAL DESCRIPTION
74HC/HCT151
The 74HC/HCT151 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).
They are specified in compliance with JEDEC standard no. 7A.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°C;
t
r
= t
f
= 6 ns
TYPICAL
SYMBOL
t
PHL
/ t
PLH
PARAMETER
propagation delay
I
n
to Y, Y
S
n
to Y, Y
E to Y
E to Y
C
I
C
PD
Notes
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
µW):
P
D
= C
PD
×
V
CC2
×
f
i
+ ∑
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz
f
o
= output frequency in MHz
∑
(C
L
×
V
CC2
×
f
o
) = sum of outputs
C
L
= output load capacitance in pF
V
CC
= supply voltage in V
2. For HC the condition is V
I
= GND to V
CC
For HCT the condition is V
I
= GND to V
CC
−
1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
input capacitance
power dissipation capacitance per package
notes 1 and 2
CONDITIONS
HC
C
L
= 15 pF; V
CC
= 5 V
17
19
12
14
3.5
40
19
20
13
18
3.5
40
ns
ns
ns
ns
pF
pF
HCT
UNIT
December 1990
2
Philips Semiconductors
Product specification
8-input multiplexer
PIN DESCRIPTION
PIN NO.
4, 3, 2, 1, 15, 14, 13, 12
5
6
7
8
11, 10, 9
16
SYMBOL
I
0
to I
7
Y
Y
E
GND
S
0
, S
1
, S
2
V
CC
NAME AND FUNCTION
multiplexer inputs
multiplexer output
complementary multiplexer output
enable input (active LOW)
ground (0 V)
select inputs
positive supply voltage
74HC/HCT151
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
Philips Semiconductors
Product specification
8-input multiplexer
FUNCTION TABLE
INPUTS
E
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care.
S
2
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
S
1
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
S
0
X
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
I
0
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
I
1
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
X
X
I
2
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
X
X
I
3
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
X
X
I
4
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
X
X
I
5
X
X
X
X
X
X
X
X
X
X
X
L
H
X
X
X
X
I
6
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
X
X
74HC/HCT151
OUTPUTS
I
7
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
H
Y
H
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
Y
L
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
Fig.4 Functional diagram.
Fig.5 Logic diagram.
December 1990
4
Philips Semiconductors
Product specification
8-input multiplexer
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
T
amb
(°C)
74HC
SYMBOL PARAMETER
+25
min. typ.
t
PHL
/ t
PLH
propagation delay
I
n
to Y
propagation delay
I
n
to Y
propagation delay
S
n
to Y
propagation delay
S
n
to Y
propagation delay
E to Y
propagation delay
E to Y
52
19
15
58
21
17
61
22
18
61
22
18
41
15
12
47
17
14
19
7
6
max.
170
34
29
185
37
31
185
37
31
205
41
35
125
25
21
145
29
25
75
15
13
−40
to
+85
min. max.
215
43
37
230
46
39
230
46
39
255
51
43
155
31
26
180
36
31
95
19
16
−40
to
+125
min.
max.
255
51
43
280
56
48
280
56
48
310
62
53
190
38
32
220
44
38
110
22
19
ns
UNIT
74HC/HCT151
TEST CONDITIONS
V
CC
WAVEFORMS
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Fig.6
t
PHL
/ t
PLH
ns
Fig.6
t
PHL
/ t
PLH
ns
Fig.7
t
PHL
/ t
PLH
ns
Fig.7
t
PHL
/ t
PLH
ns
Fig.7
t
PHL
/ t
PLH
ns
Fig.7
t
THL
/ t
TLH
output transition time
ns
Figs 6 and 7
December 1990
5
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