74AS257 Series

Quadruple 2-Line to 1-Line Data Selectors/Multiplexers With 3-State Outputs

Catalog(4 parts)

Part	Mounting Type	Supplier Device Package	Voltage Supply Source	Package / Case	Package / Case▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Operating Temperature▲▼	Independent Circuits▲▼	Type	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Circuit▲▼	Circuit
Texas Instruments SN74AS257DRG4 Multiplexer 4 x 2:1 16-SOIC	Surface Mount	16-SOIC	Single Supply	16-SOIC	0.003911599982529879 m, 3.900000095367432 ul	5.5 V	4.5 V	70 °C	1 ul	Multiplexer	0.014999999664723871 A	0.04800000041723251 A	4 ul	2:1
Texas Instruments SN74AS257NSR Multiplexer 4 x 2:1 16-SO	Surface Mount	16-SO	Single Supply	16-SOIC (0.209", 5.30mm Width)		5.5 V	4.5 V	70 °C	1 ul	Multiplexer	0.014999999664723871 A	0.04800000041723251 A	4 ul	2:1
Texas Instruments SN74AS257N Multiplexer 4 x 2:1 16-PDIP	Through Hole	16-PDIP	Single Supply	16-DIP	0.007619999814778566 m, 0.007619999814778566 m	5.5 V	4.5 V	70 °C	1 ul	Multiplexer	0.014999999664723871 A	0.04800000041723251 A	4 ul	2:1
Texas Instruments SN74AS257DR Multiplexer 4 x 2:1 16-SOIC	Surface Mount	16-SOIC	Single Supply	16-SOIC	0.003911599982529879 m, 3.900000095367432 ul	5.5 V	4.5 V	70 °C	1 ul	Multiplexer	0.014999999664723871 A	0.04800000041723251 A	4 ul	2:1

Key Features

• 3-State Outputs Interface Directly With System BusProvide Bus Interface From Multiple Sources in High-Performance SystemsPackage Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs3-State Outputs Interface Directly With System BusProvide Bus Interface From Multiple Sources in High-Performance SystemsPackage Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs

Description

These data selectors/multiplexers are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable () input is at a high logic level. The SN54ALS257A and SN54ALS258A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS257A, SN74ALS258A, SN74AS257, and SN74AS258 are characterized for operation from 0°C to 70°C. These data selectors/multiplexers are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable () input is at a high logic level. The SN54ALS257A and SN54ALS258A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS257A, SN74ALS258A, SN74AS257, and SN74AS258 are characterized for operation from 0°C to 70°C.