SN74LS682, SN74LS684, SN74LS688
8−Bit Magnitude Comparators
The SN74LS682, 684, 688 are 8-bit magnitude comparators. T...
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 kΩ pullup resistor on the Q inputs for analog or switch data.
TYPE LS682 LS684 LS688
P=Q yes yes yes
P>Q yes yes no
OUTPUT ENABLE
no no yes
OUTPUT CONFIGURATION totem-pole totem-pole totem-pole
PULLUP yes no no
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 mA
24
mA
http://onsemi.com
LOW POWER
SCHOTTKY
MARKING DIAGRAMS
20 1
PDIP−20 N SUFFIX CASE 738
SN74LS68xN AWLYYWW
1
20
LS68x
SOIC−20 1 DW SUFFIX
AWLYYWW
CASE 751D
x = 2, 4, or 8 A = Assembly L1ocation WL = Wafer Lot YY = Year WW = Work Week
ORDERING INFORMATION
Device
Package
Shipping
SN74LS682N
PDIP−20 1440 Units/Box
SN74LS682DW SOIC−WIDE 38 Units/Rail
SN74LS682DWR2 SOIC−WIDE 2500/Tape & Reel
SN74LS684N
PDIP−20 1440 Units/Box
SN74LS684DW SOIC−WIDE 38 Units/Rail
SN74LS684DWR2 SOIC−WIDE 2500/Tape & Reel
SN74LS688N
PDIP−20 1440 Units/Box
SN74LS688DW SOIC−WIDE 38 Units/Rail
SN74LS688DWR2 SOIC−WIDE 2500/Tape & Reel
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