SN74LS688 Series

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

Catalog

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

Part	Current - Output High, Low	Output	Type	Mounting Type	Supplier Device Package	Number of Bits	Output Function	Operating Temperature [Max]	Max Propagation Delay @ V, Max CL	Package / Case	Package / Case [y]	Package / Case [y]	Voltage - Supply [Max]	Voltage - Supply [Min]	Package / Case	Package / Case
Texas Instruments SN74LS688DWG4	24 mA 400 µA	Active Low	Identity Comparator	Surface Mount	20-SOIC	8	A=B	70 °C	23 ns	20-SOIC	0.295 in	7.5 mm	5.25 V	4.85 V
Texas Instruments SN74LS688DWR	24 mA 400 µA	Active Low	Identity Comparator	Surface Mount	20-SOIC	8	A=B	70 °C	23 ns	20-SOIC	0.295 in	7.5 mm	5.25 V	4.85 V
Texas Instruments SN74LS688NSR	24 mA 400 µA	Active Low	Identity Comparator	Surface Mount	20-SO	8	A=B	70 °C	23 ns	20-SOIC			5.25 V	4.85 V	0.209 "	5.3 mm
Texas Instruments SN74LS688DW	24 mA 400 µA	Active Low	Identity Comparator	Surface Mount	20-SOIC	8	A=B	70 °C	23 ns	20-SOIC	0.295 in	7.5 mm	5.25 V	4.85 V
Texas Instruments SN74LS688N	24 mA 400 µA	Active Low	Identity Comparator	Through Hole	20-PDIP	8	A=B	70 °C	23 ns	20-DIP			5.25 V	4.85 V	0.3 in	7.62 mm

Catalog

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

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

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.