POWER SCHOTTKY. SN74LS157 Datasheet

SN74LS157 Datasheet PDF


Part Number

SN74LS157

Description

LOW POWER SCHOTTKY

Manufacture

ON Semiconductor

Total Page 8 Pages
Datasheet
Download SN74LS157 Datasheet


SN74LS157
SN74LS157
Quad 2-Input Multiplexer
The LSTTL / MSI SN74LS157 is a high speed Quad 2-Input
Multiplexer. Four bits of data from two sources can be selected using
the common Select and Enable inputs. The four buffered outputs
present the selected data in the true (non-inverted) form. The LS157
can also be used to generate any four of the 16 different functions of
two variables. The LS157 is fabricated with the Schottky barrier diode
process for high speed and is completely compatible with all
ON Semiconductor TTL families.
Schottky Process for High Speed
Multifunction Capability
Non-Inverting Outputs
Input Clamp Diodes Limit High Speed Termination Effects
Special Circuitry Ensures Glitch Free Multiplexing
ESD > 3500 Volts
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min Typ Max Unit
VCC Supply Voltage
TA Operating Ambient
Temperature Range
4.75 5.0 5.25
V
0 25 70 °C
IOH Output Current – High
IOL Output Current – Low
– 0.4
8.0
mA
mA
http://onsemi.com
LOW
POWER
SCHOTTKY
16
1
PLASTIC
N SUFFIX
CASE 648
16
1
SOIC
D SUFFIX
CASE 751B
ORDERING INFORMATION
Device
Package
Shipping
SN74LS157N 16 Pin DIP 2000 Units/Box
SN74LS157D
16 Pin
2500/Tape & Reel
© Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1
Publication Order Number:
SN74LS157/D

SN74LS157
SN74LS157
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 2 3 4 56 78
S I0a I1d Za I0b I1b Zb GND
PIN NAMES
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
Multiplexer Outputs
LOADING (Note a)
HIGH
LOW
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 U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 mA HIGH/1.6 mA LOW.
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
http://onsemi.com
2





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