LS244 System Logic, LS244 Datasheet

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LS244

Manufacturer Part Number
LS244
Description
Manufacturer
System Logic
Datasheet

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Octal 3-State Noninverting Buffer/Line
Driver/Line Receiver
improve both the performance and density of three-state memory
address drivers, clock drivers, and busoriented receivers and
transmitters.
margin.
SLS
These octal buffers and line drivers and designed specifically to
This devise features high fan-out, improved fan-in, and 400 mV noise
It can be used to drive terminated lines down to 133 ohms.
3-State Outputs Drive Bus Lines or Buffer Memory Address
Registers
P-N-P Inputs Reduce D-C Loading
Hysteresis at Inputs Improves Noise Margins
System Logic
Semiconductor
LOGIC DIAGRAM
PIN 10 = GND
PIN 20=V
CC
X=don’t care
Z = high impedance
Enable A,
Enable B
H
L
L
FUNCTION TABLE
ORDERING INFORMATION
PIN ASSIGNMENT
Inputs
SL74LS244N Plastic
SL74LS244D SOIC
T
for all packages
A
= 0 to 70 C
SL74LS244
A,B
H
X
L
Outputs
YA,YB
H
L
Z

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LS244 Summary of contents

Page 1

... P-N-P Inputs Reduce D-C Loading Hysteresis at Inputs Improves Noise Margins LOGIC DIAGRAM PIN 20=V PIN 10 = GND System Logic SLS Semiconductor CC X=don’t care Z = high impedance SL74LS244 ORDERING INFORMATION SL74LS244N Plastic SL74LS244D SOIC for all packages PIN ASSIGNMENT FUNCTION TABLE Inputs Outputs Enable A, A,B YA,YB Enable B L ...

Page 2

... SL74LS244 * MAXIMUM RATINGS Symbol Parameter V Supply Voltage CC V Input Voltage IN V Output Voltage OUT Tstg Storage Temperature Range * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. RECOMMENDED OPERATING CONDITIONS ...

Page 3

... S1 closed, S2 opened PZL opened, S2 closed PZH and S2 closed PLZ PHZ Figure 2. Switching Waveforms (See Figure 4) NOTES A. C includes probe and jig capacitance All diodes are 1N916 or 1N3064. Figure 4. Test Circuit SL74LS244 Max Unit ...

Page 4

... SL74LS244 EXPANDED LOGIC DIAGRAM System Logic SLS Semiconductor ...

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