74LS68

Manufacturer Part Number74LS68
DescriptionLOW POWER SCHOTTKY
ManufacturerON Semiconductor
74LS68 datasheet
 


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SN74LS682 SN74LS684
SN74LS688
8-Bit Magnitude
Comparators
The SN74LS682, 684, 688 are 8-bit magnitude comparators. These
device types are designed to perform comparisons between two
eight-bit binary or BCD words. All device types provide P = Q outputs
and the LS682 and LS684 have P >Q outputs also.
The LS682, LS684 and LS688 are totem pole devices. The LS682
has a 20 k pullup resistor on the Q inputs for analog or switch data.
OUTPUT
TYPE
P = Q
P > Q
ENABLE
CONFIGURATION
LS682
yes
yes
no
totem-pole
LS684
yes
yes
no
totem-pole
LS688
yes
no
yes
totem-pole
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
V
Supply Voltage
4.75
CC
T
Operating Ambient
A
Temperature Range
I
Output Current – High
OH
I
Output Current – Low
OL
Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
OUTPUT
PULLUP
yes
no
no
Typ
Max
Unit
5.0
5.25
V
0
25
70
C
– 0.4
mA
24
mA
Device
SN74LS682N
SN74LS682DW
SN74LS684N
SN74LS684DW
SN74LS688N
SN74LS688DW
1
http://onsemi.com
LOW
POWER
SCHOTTKY
20
1
PLASTIC
N SUFFIX
CASE 738
20
1
SOIC
DW SUFFIX
CASE 751D
ORDERING INFORMATION
Package
Shipping
16 Pin DIP
1440 Units/Box
16 Pin
2500/Tape & Reel
16 Pin DIP
1440 Units/Box
16 Pin
2500/Tape & Reel
16 Pin DIP
1440 Units/Box
16 Pin
2500/Tape & Reel
Publication Order Number:
SN74LS682/D

74LS68 Summary of contents

  • Page 1

    ... SN74LS682 SN74LS684 SN74LS688 8-Bit Magnitude Comparators The SN74LS682, 684, 688 are 8-bit magnitude comparators. These device types are designed to perform comparisons between two eight-bit binary or BCD words. All device types provide outputs and the LS682 and LS684 have P >Q outputs also. ...

  • Page 2

    ... SN74LS682 SN74LS684 SN74LS688 CONNECTION DIAGRAMS (TOP VIEW SN74LS682/684 P> GND V P SN74LS688 ...

  • Page 3

    ... SN74LS682 SN74LS684 SN74LS688 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE Symbol Parameter V Input HIGH Voltage IH V Input LOW Voltage IL V Input Clamp Diode Voltage IK V Output HIGH Voltage Output LOW Voltage Output LOW Voltage Input HIGH Current LS682-Q Inputs IH Others LS682-Q Inputs ...

  • Page 4

    ... SN74LS682 SN74LS684 SN74LS688 (17) P7 (18) Q7 (15) P6 (16) Q6 (13) P5 (14) Q5 (11) P4 (12) Q4 (8) P3 (9) Q3 (6) P2 (7) Q2 (4) P1 (5) Q1 (2) P0 (3) Q0 SN74LS682 and LS684 LOGIC DIAGRAMS (17) P7 (18) Q7 (15) P6 (16) Q6 (19 (13) P5 (14) Q5 (11) P4 (12) Q4 (8) P3 (9) Q3 (6) P2 (7) Q2 (4) P1 (5) Q1 (1) (2) P > Q ...

  • Page 5

    ... SN74LS682 SN74LS684 SN74LS688 AC CHARACTERISTICS ( SN74LS682 Symbol Parameter t PLH Propagation Delay PHL t PLH Propagation Delay PHL t PLH Propagation Delay > PHL t PLH Propagation Delay > PHL SN74LS684 Symbol Parameter t PLH Propagation Delay ...

  • Page 6

    ... SN74LS682 SN74LS684 SN74LS688 –A– –T– SEATING PLANE 0.25 (0.010) PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 738–03 ISSUE 0.25 (0.010 http://onsemi.com 6 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. ...

  • Page 7

    ... SN74LS682 SN74LS684 SN74LS688 PACKAGE DIMENSIONS PLASTIC SOIC PACKAGE 20X 0. SEATING PLANE e 18X SUFFIX CASE 751D–05 ISSUE F q NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSION ...

  • Page 8

    ... SN74LS682 SN74LS684 SN74LS688 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “ ...