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Электронный компонент: 74F352

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1999 Fairchild Semiconductor Corporation
DS009519
www.fairchildsemi.com
May 1988
Revised August 1999
7
4F352 D
u
a
l
4-I
nput Mult
ip
lexer
74F352
Dual 4-Input Multiplexer
General Description
The 74F352 is a very high-speed dual 4-input multiplexer
with common Select inputs and individual Enable inputs for
each section. It can select two bits of data from four
sources. The two buffered outputs present data in the
inverted (complementary) form. The 74F352 is the func-
tional equivalent of the 74F153 except with inverted out-
puts.
Features
s
Inverted version of 74F153
s
Separate enables for each multiplexer
s
Input clamp diode limits high speed termination effects
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Truth Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Order Number
Package Number
Package Description
74F352SJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F352PC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Select
Inputs (a or b)
Output
Inputs
S
0
S
1
E
I
0
I
1
I
2
I
3
Z
X
X
H
X
X
X
X
H
L
L
L
L
X
X
X
H
L
L
L
H
X
X
X
L
H
L
L
X
L
X
X
H
H
L
L
X
H
X
X
L
L
H
L
X
X
L
X
H
L
H
L
X
X
H
X
L
H
H
L
X
X
X
L
H
H
H
L
X
X
X
H
L
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2
74F352
Unit Loading/Fan Out
Functional Description
The 74F352 is a dual 4-input multiplexer. It selects two bits
of data from up to four sources under the control of the
common Select inputs (S
0
, S
1
). The two 4-input multiplexer
circuits have individual active LOW Enables (E
a
, E
b
) which
can be used to strobe the outputs independently. When the
Enables (E
a
, E
b
) are HIGH, the corresponding outputs (Z
a
,
Z
b
) are forced HIGH. The logic equations for the outputs
are shown below:
Z
a
=
E
a
(I
0a
S
1
S
0
+
I
1a
S
1
S
0
+
I
2a
S
1
S
0
+
I
3a
S
1
S
0
)
Z
b
=
E
b
(I
0b
S
1
S
0
+
I
1b
S
1
S
0
+
I
2b
S
1
S
0
+
I
3b
S
1
S
0
)
The 74F352 can be used to move data from a group of reg-
isters to a common output bus. The particular register from
which the data came would be determined by the state of
the Select inputs. A less obvious application is as a func-
tion generator. The 74F352 can generate two functions of
three variables. This is useful for implementing highly irreg-
ular random logic.
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
Pin Names
Description
U.L.
Input I
IH
/I
IL
HIGH/LOW
Output I
OH
/I
OL
I
0a
I
3a
Side A Data Inputs
1.0/1.0
20
A/
-
0.6 mA
I
0b
I
3b
Side B Data Inputs
1.0/1.0
20
A/
-
0.6 mA
S
0
S
1
Common Select Inputs
1.0/1.0
20
A/
-
0.6 mA
E
a
Side A Enable Input (Active LOW)
1.0/1.0
20
A/
-
0.6 mA
E
b
Side B Enable Input (Active LOW)
1.0/1.0
20
A/
-
0.6 mA
Z
a
, Z
b
Multiplexer Outputs (Inverted)
50/33.3
-
1 mA/20 mA
3
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7
4F352
Absolute Maximum Ratings
(Note 1)
Recommended Operating
Conditions
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
AC Electrical Characteristics
Storage Temperature
-
65
C to
+
150
C
Ambient Temperature under Bias
-
55
C to
+
125
C
Junction Temperature under Bias
-
55
C to
+
150
C
V
CC
Pin Potential to Ground Pin
-
0.5V to
+
7.0V
Input Voltage (Note 2)
-
0.5V to
+
7.0V
Input Current (Note 2)
-
30 mA to
+
5.0 mA
Voltage Applied to Output
in HIGH State (with V
CC
=
0V)
Standard Output
-
0.5V to V
CC
3-STATE Output
-
0.5V to
+
5.5V
Current Applied to Output
in LOW State (Max)
twice the rated I
OL
(mA)
Free Air Ambient Temperature
0
C to
+
70
C
Supply Voltage
+
4.5V to
+
5.5V
Symbol
Parameter
Min
Typ
Max
Units
V
CC
Conditions
V
IH
Input HIGH Voltage
2.0
V
Recognized as a HIGH Signal
V
IL
Input LOW Voltage
0.8
V
Recognized as a LOW Signal
V
CD
Input Clamp Diode Voltage
-
1.2
V
Min
I
IN
=
-
18 mA
V
OH
Output HIGH
10% V
CC
2.5
V
Min
I
OH
=
-
1 mA
Voltage
5% V
CC
2.7
I
OH
=
-
1 mA
V
OL
Output LOW
10% V
CC
0.5
V
Min
I
OL
=
20 mA
Voltage
I
IH
Input HIGH
5.0
A
Max
V
IN
=
2.7V
Current
I
BVI
Input HIGH Current
7.0
A
Max
V
IN
=
7.0V
Breakdown Test
I
CEX
Output HIGH
50
A
Max
V
OUT
=
V
CC
Leakage Current
V
ID
Input Leakage
4.75
V
0.0
I
ID
=
1.9
A
Test
All Other Pins Grounded
I
OD
Output Leakage
3.75
A
0.0
V
IOD
=
150 mV
Circuit Current
All Other Pins Grounded
I
IL
Input LOW Current
-
0.6
mA
Max
V
IN
=
0.5V
I
OS
Output Short-Circuit Current
-
60
-
150
mA
Max
V
OUT
=
0V
I
CCH
Power Supply Current
9.3
14
mA
Max
V
O
=
HIGH
I
CCL
Power Supply Current
13.3
20
mA
Max
V
O
=
LOW
Symbol
Parameter
T
A
=
+
25
C
T
A
=
0
C to
+
70
C
Units
V
CC
=
+
5.0V
V
CC
=
+
5.0V
C
L
=
50 pF
C
L
=
50 pF
Min
Typ
Max
Min
Max
t
PLH
Propagation Delay
4.0
8.0
11.0
3.5
12.5
ns
t
PHL
S
n
to Z
n
3.5
6.5
8.5
3.0
9.5
t
PLH
Propagation Delay
3.0
4.5
6.0
2.5
7.0
ns
t
PHL
E
n
to Z
n
3.0
5.0
7.0
2.5
8.0
t
PLH
Propagation Delay
2.0
5.2
7.0
2.0
8.0
ns
t
PHL
I
n
to Z
n
1.3
2.5
4.0
1.0
4.5
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4
74F352
Physical Dimensions
inches (millimeters) unless otherwise noted
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M16D
5
www.fairchildsemi.com
7
4F352 D
u
a
l
4-I
nput Mult
ip
lexer
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N16E
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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