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74LS688 Series

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

Manufacturer: Texas Instruments

Catalog(3 parts)

PartCurrent - Output High, Low▲▼Current - Output High, Low▲▼Supplier Device PackageOperating Temperature▲▼Operating Temperature▲▼Mounting TypeOutput FunctionPackage / Case▲▼Package / CaseVoltage - Supply▲▼Voltage - Supply▲▼Max Propagation Delay @ V, Max CL▲▼Number of Bits▲▼TypeOutput▲▼
Texas Instruments
SN74LS688DWG4
Magnitude Comparator Bit Active Low Output A=B 20-SOIC
0.00039999998989515007 A
0.024000000208616257 A
20-SOIC
70 °C
0 °C
Surface Mount
A=B
0.007493000011891127 m, 0.007499999832361937 m
20-SOIC
4.849999904632568 V
5.25 V
2.3000000126671697e-8 s
8 ul
Identity Comparator
Texas Instruments
SN74LS688DWR
Magnitude Comparator Bit Active Low Output A=B 20-SOIC
0.00039999998989515007 A
0.024000000208616257 A
20-SOIC
70 °C
0 °C
Surface Mount
A=B
0.007493000011891127 m, 0.007499999832361937 m
20-SOIC
4.849999904632568 V
5.25 V
2.3000000126671697e-8 s
8 ul
Identity Comparator
Texas Instruments
SN74LS688NSR
Magnitude Comparator Bit Active Low Output A=B 20-SO
0.00039999998989515007 A
0.024000000208616257 A
20-SO
70 °C
0 °C
Surface Mount
A=B
0.0052999998442828655 m, 0.005308600142598152 m
20-SOIC
4.849999904632568 V
5.25 V
2.3000000126671697e-8 s
8 ul
Identity Comparator

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.