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74AC151SCX

P1-P3P4-P6P7-P9
© 1999 Fairchild Semiconductor Corporation DS009927 www.fairchildsemi.com
November 1988
Revised November 1999
74AC151 • 74ACT151 8-Input Multiplexer
74AC151 • 74ACT151
8-Input Multiplexer
General Description
The AC/ACT151 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 AC/ACT151 can be
used as a universal function generator to generate any
logic function of four variables. Both true and complemen-
tary outputs are provided.
Features
■ I
CC
reduced by 50%
■ Outputs source/sink 24 mA
■ ACT151 has TTL-compatible inputs
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Pin Descriptions
FACT is a trademark of Fairchild Semiconductor Corporation.
Order Number Package Number Package Description
74AC151SC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
74AC151SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74AC151MTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74AC151PC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
74ACT151SC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body
74ACT151SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT151PC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Pin Names Description
I
0
–I
7
Data Inputs
S
0
–S
2
Select Inputs
E
Enable Input
Z Data Output
Z
Inverted Data Output
www.fairchildsemi.com 2
74AC151 • 74ACT151
Truth Table
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Functional Description
The AC/ACT151 is a logic implementation of a single pole,
8-position switch with the switch position controlled by the
state of three Select inputs, S
0
, S
1
, S
2
. Both true and com-
plementary outputs are provided. The Enable input (E
) is
active LOW. When it is not activated, the complementary
output is HIGH and the true output is LOW regardless of all
other inputs. The logic function provided at the output is:
Z = E
• (I
0
• S
0
• S
1
• S
2
+ I
1
• S
0
• S
1
• S
2
+
I
2
• S
0
• S
1
• S
2
+ I
3
• S
0
• S
1
• S
2
+ I
4
• S
0
• S
1
• S
2
+ I
5
•
S
0
• S
1
• S
2
+ I
6
• S
0
• S
1
• S
2
+ I
7
• S
0
• S
1
• S
2
)
The AC/ACT151 provides the ability, in one package, to
select from eight sources of data or control information. By
proper manipulation of the inputs, the AC/ACT151 can pro-
vide any logic function of four variables and its comple-
ment.
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.
Inputs Outputs
E
S
2
S
1
S
0
Z Z
H X X X H L
L L L L I
0
I
0
L L L H I
1
I
1
L L H L I
2
I
2
L L H H I
3
I
3
L H L L I
4
I
4
L H L H I
5
I
5
L H H L I
6
I
6
L H H H I
7
I
7
3 www.fairchildsemi.com
74AC151 • 74ACT151
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions
Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable over its power
supply, temperature, and output/input loading variables. Fairchild does not
recommend operation of FACT circuits outside databook specifications.
DC Electrical Characteristics for AC
Note 2: All outputs loaded; thresholds on input associated with output under test.
Note 3: Maximum test duration 2.0 ms, one output loaded at a time.
Note 4: I
IN
and I
CC
@ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V V
CC
.
Supply Voltage (V
CC
) −0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
= −0.5V −20 mA
V
I
= V
CC
+ 0.5V +20 mA
DC Input Voltage (V
I
) −0.5V to V
CC
+ 0.5V
DC Output Diode Current (I
OK
)
V
O
= −0.5V −20 mA
V
O
= V
CC
+ 0.5V +20 mA
DC Output Voltage (V
O
) −0.5V to V
CC
+ 0.5V
DC Output Source
or Sink Current (I
O
) ±50 mA
DC V
CC
or Ground Current
per Output Pin (I
CC
or I
GND
) ±50 mA
Storage Temperature (T
STG
) −65°C to +150°C
Junction Temperature (T
J
)
PDIP 140°C
Supply Voltage (V
CC
)
AC 2.0V to 6.0V
ACT 4.5V to 5.5V
Input Voltage (V
I
) 0V to V
CC
Output Voltage (V
O
) 0V to V
CC
Operating Temperature (T
A
) −40°C to +85°C
Minimum Input Edge Rate (∆V/∆t)
AC Devices
V
IN
from 30% to 70% of V
CC
V
CC
@ 3.3V, 4.5V, 5.5V 125 mV/ns
Minimum Input Edge Rate (∆V/∆t)
ACT Devices
V
IN
from 0.8V to 2.0V
V
CC
@ 4.5V, 5.5V 125 mV/ns
Symbol Parameter
V
CC
T
A
= +25°C T
A
= −40°C to +85°C
Units Conditions
(V) Typ Guaranteed Limits
V
IH
Minimum HIGH Level 3.0 1.5 2.1 2.1 V
OUT
= 0.1V
Input Voltage 4.5 2.25 3.15 3.15 V or V
CC
− 0.1V
5.5 2.75 3.85 3.85
V
IL
Maximum LOW Level 3.0 1.5 0.9 0.9 V
OUT
= 0.1V
Input Voltage 4.5 2.25 1.35 1.35 V or V
CC
− 0.1V
5.5 2.75 1.65 1.65
V
OH
Minimum HIGH Level 3.0 2.99 2.9 2.9
Output Voltage 4.5 4.49 4.4 4.4 V I
OUT
= −50 µA
5.5 5.49 5.4 5.4
V
IN
= V
IL
or V
IH
3.0 2.56 2.46 I
OH
= −12 mA
4.5 3.86 3.76 V I
OH
= −24 mA
5.5 4.86 4.76 I
OH
= −24 mA(Note 2)
V
OL
Maximum LOW Level 3.0 0.002 0.1 0.1
Output Voltage 4.5 0.001 0.1 0.1 V I
OUT
= 50 µA
5.5 0.001 0.1 0.1
V
IN
= V
IL
or V
IH
3.0 0.36 0.44 I
OL
= 12 mA
4.5 0.36 0.44 V I
OL
= 24 mA
5.5 0.36 0.44 I
OL
= 24 mA (Note 2)
I
IN
(Note 4)
Maximum Input
Leakage Current
5.5 ±0.1 ±1.0 µA V
I
= V
CC
, GND
I
OLD
Minimum Dynamic 5.5 75 mA V
OLD
= 1.65V Max
I
OHD
Output Current (Note 3) 5.5 −75 mA V
OHD
= 3.85V Min
I
CC
(Note 4)
Maximum Quiescent
Supply Current
5.5 4.0 40.0 µAV
IN
= V
CC
or GND
P1-P3P4-P6P7-P9

74AC151SCX

Mfr. #:
Buy 74AC151SCX
Manufacturer:
ON Semiconductor / Fairchild
Description:
Encoders, Decoders, Multiplexers & Demultiplexers 8-Input Multiplexer
Lifecycle:
New from this manufacturer.
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