SN54LS158 Datasheet, PDF (1/5 Pages) Motorola, Inc – QUAD 2-INPUT MULTIPLEXER

QUAD 2-INPUT MULTIPLEXER
The LSTTL/ MSI SN54L/ 74LS158 is a high speed Quad 2-input Multiplex-
er. It selects four bits of data from two sources using the common Select and
Enable inputs. The four buffered outputs present the selected data in the
inverted form. The LS158 can also generate any four of the 16 different
functions of two variables. The LS158 is fabricated with the Schottky barrier
diode process for high speed and is completely compatible with all Motorola
TTL families.
• Schottky Process for High Speed
• Multifunction Capability
• Inverted Outputs
• Input Clamp Diodes Limit High Speed Termination Effects
• ESD > 3500 Volts
• Special Circuitry Ensures Glitch Free Multiplexing
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC E I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
1
23
4
56
78
S I0a I1a Za I0b I1b Zb GND
PIN NAMES
LOADING (Note a)
HIGH
LOW
S
E
I0a – I0d
I1a – I1d
Za – Zd
Common Select Input
Enable (Active LOW) Input
Data Inputs from Source 0
Data Inputs from Source 1
Inverted Outputs (Note b)
1.0 U.L.
1.0 U.L.
0.5 U.L.
0.5 U.L.
10 U.L.
0.5 U.L.
0.5 U.L.
0.25 U.L.
0.25 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.
LOGIC DIAGRAM
I0a I1a
I0b
2
3
5
I1b
6
I0c
14
I1c I0d
13
11
I1d E S
10 15
1
VCC = PIN 16
GND = PIN 8
4
7
12
9
= PIN NUMBERS
Za
Zb
Zc
Zd
FAST AND LS TTL DATA
5-273
SN54/74LS158
QUAD 2-INPUT MULTIPLEXER
LOW POWER SCHOTTKY
16
1
J SUFFIX
CERAMIC
CASE 620-09
16
1
N SUFFIX
PLASTIC
CASE 648-08
16
1
D SUFFIX
SOIC
CASE 751B-03
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXD SOIC
LOGIC SYMBOL
15 2 3 5 6 14 13 11 10
E I0a I1a I0b I1b I0c I1c I0d I1d
1S
Za Zb Zc Zd
4
7 12 9
VCC = PIN 16
GND = PIN 8