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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 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.
SN74LS688 Datasheet
