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SN74LS688 Series

8-Bit Identity/Magnitude Comparators (P=Q) with Enable

Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/

Catalog

8-Bit Identity/Magnitude Comparators (P=Q) with Enable

PartMax Propagation Delay @ V, Max CLOutputMounting TypePackage / CasePackage / CaseVoltage - Supply [Min]Voltage - Supply [Max]Number of BitsOutput FunctionTypeCurrent - Output High, Low [custom]Current - Output High, Low [custom]Supplier Device PackageOperating Temperature [Max]Operating Temperature [Min]Package / CasePackage / Case
Texas Instruments
SN74LS688DW
23 ns
Surface Mount
0.295 in, 7.5 mm
20-SOIC
4.85 V
5.25 V
8
A=B
Identity Comparator
400 µA
24 mA
20-SOIC
70 ░C
0 °C
Texas Instruments
SN74LS688DWR
23 ns
Surface Mount
0.295 in, 7.5 mm
20-SOIC
4.85 V
5.25 V
8
A=B
Identity Comparator
400 µA
24 mA
20-SOIC
70 ░C
0 °C
Texas Instruments
SN74LS688N
23 ns
Through Hole
20-DIP
4.85 V
5.25 V
8
A=B
Identity Comparator
400 µA
24 mA
20-PDIP
70 ░C
0 °C
0.3 in
7.62 mm
Texas Instruments
SN74LS688NSR
23 ns
Surface Mount
0.209 in, 5.3 mm
20-SOIC
4.85 V
5.25 V
8
A=B
Identity Comparator
400 µA
24 mA
20-SO
70 ░C
0 °C

Key Features

• Compares Two-8-Bit WordsChoice of Totem-Pole or Open-Collector OutputsHysteresis at P and Q Inputs'LS682 has 20-kPullup Resistors on the Q InputsSN74LS686 and 'LS687 … JT and NT 24-Pin, 300-Mil PackagesCompares Two-8-Bit WordsChoice of Totem-Pole or Open-Collector OutputsHysteresis at P and Q Inputs'LS682 has 20-kPullup Resistors on the Q InputsSN74LS686 and 'LS687 … JT and NT 24-Pin, 300-Mil Packages

Description

AI
These magnitude comparators perform comparisons of two eight-bit binary or BCD words. All types provide P = Q\ outputs and all except 'LS688 provide P > Q\ outputs as well. The 'LS682, 'LS684, 'LS686, and 'LS688 have totem-pole outputs, while the 'LS685 and 'LS687 have open-collector outputs. The 'LS682 features 20-kpullup termination resistors on the Q inputs for analog or switch data. These magnitude comparators perform comparisons of two eight-bit binary or BCD words. All types provide P = Q\ outputs and all except 'LS688 provide P > Q\ outputs as well. The 'LS682, 'LS684, 'LS686, and 'LS688 have totem-pole outputs, while the 'LS685 and 'LS687 have open-collector outputs. The 'LS682 features 20-kpullup termination resistors on the Q inputs for analog or switch data.