5-252
FAST AND LS TTL DATA
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.
• Schottky Process for High Speed
• Multifunction Capability
• On-Chip Select Logic Decoding
• Fully Buffered Complementary Outputs
• Input Clamp Diodes Limit High Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
C0049C0052 C0049C0051 C0049C0050 C0049C0049 C0049C0048 C0057
C0049 C0050 C0051 C0052 C0053 C0054 C0055
C0049C0054 C0049C0053
C0056
C0086
C0067C0067
C0073
C0051
C0073
C0052
C0073
C0053
C0073
C0054
C0073
C0055
C0083
C0049
C0083
C0048
C0083
C0050
C0073
C0050
C0073
C0049
C0073
C0048
C0090 C0090 C0069 C0071C0078C0068
PIN NAMES LOADING (Note a)
HIGH LOW
S
0
–S
2
E
I
0
–I
7
Z
Z
Select Inputs
Enable (Active LOW) Input
Multiplexer Inputs
Multiplexer Output (Note b)
Complementary Multiplexer Output
(Note b)
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.
SN54/74LS151
8-INPUT MULTIPLEXER
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXD SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
C0086
C0067C0067
C0061 C0080C0073C0078 C0049C0054
C0071C0078C0068 C0061 C0080C0073C0078 C0056
C0049C0049
C0049C0048
C0057
C0054 C0053
C0055 C0052 C0051 C0050 C0049 C0049C0053 C0049C0052 C0049C0051C0049C0050
C0069 C0073
C0048
C0073
C0049
C0073
C0050
C0073
C0051
C0073
C0052
C0073
C0053
C0073
C0054
C0073
C0055
C0083
C0048
C0083
C0049
C0083
C0050
C0090 C0090