F151A [FAIRCHILD]
8-Input Multiplexer; 8输入多路复用器
| 型号： | F151A |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 8-Input Multiplexer |
| 文件： | 总7页 (文件大小：81K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
April 1988
Revised September 2000
74F151A
8-Input Multiplexer
universal function generator to generate any logic function
of four variables. Both assertion and negation outputs are
provided.
General Description
The F151A is a high-speed 8-input digital multiplexer. It
provides in one package the ability to select one line of
data from up to eight sources. The F151A can be used as a
Ordering Code:
Order Number Package Number
Package Description
74F151ASC
74F151ASJ
74F151APC
M16A
M16D
N16E
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
Connection Diagram
IEEE/IEC
Unit Loading/Fan Out
Input IIH/IIL
U.L.
Pin Names
Description
Data Inputs
Output IOH/IOL
HIGH/LOW
1.0/1.0
I0–I7
20 µA/−0.6 mA
20 µA/−0.6 mA
20 µA/−0.6 mA
S0–S2
Select Inputs
1.0/1.0
E
Z
Z
Enable Input (Active LOW)
Data Output
1.0/1.0
50/33.3 −1 mA/20 mA
50/33.3 −1 mA/20 mA
Inverted Data Output
© 2000 Fairchild Semiconductor Corporation
DS009481
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Functional Description
Truth Table
The F151A is a logic implementation of a single pole, 8-
position switch with the switch position controlled by the
state of three Select inputs, S0, S1, S2. Both assertion and
Inputs
S1
Outputs
E
S2
S0
Z
Z
negation outputs are provided. The Enable input (E) is
active LOW. When it is not activated, the negation output is
HIGH and the assertion output is LOW regardless of all
other inputs. The logic function provided at the output is:
H
L
L
L
X
L
L
L
X
L
X
L
H
I0
I1
I2
L
I0
I1
I2
L
H
L
Z = E • (I0 S2 S1
S
0 + I1 S2 S1
0 + I4 S2 S1 0 + I5 S2 S1 S0
0 + I7 S2 S1 S0)
S0 + I2 S2 S1 S0 +
H
I3 S2 S1
6 S2 S1
S
S
S
+
I
The F151A provides the ability, in one package, to select
from eight sources of data or control information. By proper
manipulation of the inputs, the F151A can provide any logic
function of four variables and its negation.
L
L
L
L
L
L
H
H
H
H
H
L
H
L
I3
I4
I5
I6
I7
I3
I4
I5
I6
I7
L
H
L
H
H
H
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
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.
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2
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions
Storage Temperature
Ambient Temperature under Bias
Junction Temperature under Bias
VCC Pin Potential to
−65°C to +150°C
−55°C to +125°C
−55°C to +150°C
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
Ground Pin
−0.5V to +7.0V
−0.5V to +7.0V
Input Voltage (Note 2)
Input Current (Note 2)
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output
−30 mA to +5.0 mA
−0.5V to VCC
3-STATE Output
−0.5V to +5.5V
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.
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Min
Typ
Max
VCC
Symbol
VIH
Parameter
Input HIGH Voltage
Units
Conditions
2.0
V
V
V
Recognized as a HIGH Signal
Recognized as a LOW Signal
VIL
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH
0.8
VCD
VOH
−1.2
Min
Min
I
I
I
I
IN = −18 mA
OH = −1 mA
OH = −1 mA
OL = 20 mA
10% VCC
5% VCC
2.5
2.7
V
Voltage
VOL
IIH
Output LOW Voltage
Input HIGH Current
Input HIGH Current
Breakdown Test
Output HIGH
10% VCC
0.5
5.0
V
Min
µA
Max
V
IN = 2.7V
IBVI
7.0
50
µA
µA
V
Max
Max
0.0
V
IN = 7.0V
ICEX
V
OUT = VCC
Leakage Current
Input Leakage
VID
I
ID = 1.9 µA
All Other Pins Grounded
IOD = 150 mV
All Other Pins Grounded
4.75
Test
IOD
Output Leakage
Circuit Current
V
3.75
µA
0.0
IIL
Input LOW Current
Output Short-Circuit Current
Power Supply Current
−0.6
−150
21.0
mA
mA
mA
Max
Max
Max
VIN = 0.5V
VOUT = 0V
VO = HIGH
IOS
ICC
−60
13.5
3
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AC Electrical Characteristics
T
A = +25°C
TA = 0°C to +70°C
V
CC = +5.0V
CL = 50 pF
Symbol
Parameter
Units
C
L = 50 pF
Min
4.0
3.2
4.5
4.0
3.0
3.0
5.0
3.5
3.0
1.5
3.0
3.7
Typ
6.2
5.2
7.5
6.2
4.7
4.4
7.0
5.3
4.8
2.5
4.8
5.5
Max
9.0
7.5
10.5
9.0
6.1
6.0
9.5
7.0
6.5
4.0
6.5
7.0
Min
Max
tPLH
Propagation Delay
Sn to Z
3.5
3.2
4.5
4.0
3.0
2.5
4.0
3.0
3.0
1.5
2.5
3.7
9.5
7.5
12.0
9.0
7.0
6.0
10.5
7.5
7.0
5.0
7.5
7.5
ns
ns
ns
ns
ns
ns
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Propagation Delay
Sn to Z
Propagation Delay
E to Z
Propagation Delay
E to Z
Propagation Delay
In to Z
Propagation Delay
In to Z
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4
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M16A
5
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M16D
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6
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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7
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