74ALS688 Series

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

Catalog(4 parts)

Part	Max Propagation Delay @ V, Max CL▲▼	Number of Bits▲▼	Operating Temperature▲▼	Mounting Type	Type	Output Function	Supplier Device Package	Package / Case▲▼	Package / Case	Current - Output High, Low▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Package / Case▲▼	Package / Case▲▼
Texas Instruments SN74ALS688DWG4 Magnitude Comparator Bit Active Low Output A=B 20-SOIC	1.999999987845058e-8 s	8 ul	70 °C	Surface Mount	Identity Comparator	A=B	20-SOIC	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	0.0026000000070780516 A, 0.024000000208616257 A	5.5 V	4.5 V
Texas Instruments SN74ALS688NSR Magnitude Comparator Bit Active Low Output A=B 20-SO	1.999999987845058e-8 s	8 ul	70 °C	Surface Mount	Identity Comparator	A=B	20-SO	0.0052999998442828655 m, 0.005308600142598152 m	20-SOIC	0.0026000000070780516 A, 0.024000000208616257 A	5.5 V	4.5 V
Texas Instruments SN74ALS688DWR Magnitude Comparator Bit Active Low Output A=B 20-SOIC	1.999999987845058e-8 s	8 ul	70 °C	Surface Mount	Identity Comparator	A=B	20-SOIC	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	0.0026000000070780516 A, 0.024000000208616257 A	5.5 V	4.5 V
Texas Instruments SN74ALS688N Magnitude Comparator Bit Active Low Output A=B 20-PDIP	1.999999987845058e-8 s	8 ul	70 °C	Through Hole	Identity Comparator	A=B	20-PDIP		20-DIP	0.0026000000070780516 A, 0.024000000208616257 A	5.5 V	4.5 V	0.007619999814778566 m	0.007619999814778566 m

Key Features

• Compare Two 8-Bit WordsTotem-Pole Outputs (P = Q\)´ALS688 Are Identical to ´ALS521Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPsCompare Two 8-Bit WordsTotem-Pole Outputs (P = Q\)´ALS688 Are Identical to ´ALS521Package Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Description

These identity comparators perform comparisons on two 8-bit binary or BCD words and provide P = Q\ outputs. These devices have totem-pole outputs. The SN54ALS688 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS688 is characterized for operation from 0°C to 70°C. These identity comparators perform comparisons on two 8-bit binary or BCD words and provide P = Q\ outputs. These devices have totem-pole outputs. The SN54ALS688 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS688 is characterized for operation from 0°C to 70°C.