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tÉlÉcharger ic 74151 datasheet pdf

SN54/74LS151
8-INPUT MULTIPLEXER
The TTL / MSI SN54 / 74LS151 is a high speed 8-input Digital Multiplexer.
It provides, in one package, the ability to select one bit of data from up to eight
sources. The LS151 can be used as a universal function generator to
generate any logic function of four variables. Both assertion and negation
outputs are provided.





8-INPUT MULTIPLEXER
Schottky Process for High Speed
Multifunction Capability
On-Chip Select Logic Decoding
Fully Buffered Complementary Outputs
Input Clamp Diodes Limit High Speed Termination Effects
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
16
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC
16
I4
15
I5
14
I6
13
I7
12
S0
11
S1
10
1
S2
9
N SUFFIX
PLASTIC
CASE 648-08
16
1
1
I3
2
I2
3
I1
4
I0
5
Z
6
Z
7
E
8
GND
D SUFFIX
SOIC
CASE 751B-03
16
1
ORDERING INFORMATION
PIN NAMES
S0 – S2
E
I0 – I7
Z
Z
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
LOADING (Note a)
Select Inputs
Enable (Active LOW) Input
Multiplexer Inputs
Multiplexer Output (Note b)
Complementary Multiplexer Output
(Note b)
HIGH
LOW
0.5 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
10 U.L.
0.25 U.L.
0.25 U.L.
0.25 U.L.
5 (2.5) U.L.
5 (2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
Temperature Ranges.