Details, datasheet, quote on part number: SN74ALS258ANSR
CategoryLogic => Encoders/Multiplexers => Multiplexers
Descriptionti SN74ALS258A, Quadruple 2-Line to 1-Line Data Selectors/multiplexers With 3-State Outputs
CompanyTexas Instruments, Inc.
DatasheetDownload SN74ALS258ANSR datasheet
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Features, Applications

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


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 (OE) input at a high logic level. The SN54ALS257A and SN54ALS258A are characterized for operation over the full military temperature range to 125C. The SN74ALS258A, SN74AS257, and SN74AS258 are characterized for operation from to 70C.


Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

These symbols are in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages.

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage, VCC. 7 V Input voltage, VI. 7 V Voltage applied to a disabled 3-state output. 5.5 V Maximum power dissipation = 55C (in still air) (see Note 1): D package. W N package. 1.1 W Operating free-air temperature range, TA: to 70C Storage temperature range, Tstg. to 150C

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: The maximum package power dissipation is calculated using a junction temperature of 150C and a board trace length of 750 mils, except for the N package, which has a trace length of zero.

SN54ALS257A SN54ALS258A MIN VCC VIH VIL IOH IOL TA Supply voltage High-level input voltage Low-level input voltage High-level output current Low-level output current Operating free-air temperature NOM 5 MAX SN74ALS257A SN74ALS258A MIN NOM 5 MAX mA C UNIT


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