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SN74S257

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Datenblatt
SN74S257 wird demnächst aus dem Programm genommen
Dieses Produkt wird demnächst aus dem Programm genommen. Für neue Designs sollte ein alternatives Produkt in Erwägung gezogen werden.
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Selbe Funktionalität wie der verglichene Baustein bei gleicher Anschlussbelegung.
CD74AC257 AKTIV Vierfache nicht invertierende Multiplexer mit 2 Eingängen und Tri-State-Ausgängen Voltage range 2V to 6V, average propagation delay 7ns, average drive strength 24mA

SN74S257

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Datenblatt Jetzt bestellen

Produktdetails

Technology family S Function Multiplexer Configuration 2:1 Number of channels 4 Operating temperature range (°C) 0 to 70 Rating Catalog
Technology family S Function Multiplexer Configuration 2:1 Number of channels 4 Operating temperature range (°C) 0 to 70 Rating Catalog
PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm)
  • Three-State Outputs Interface Directly with System Bus
  • 'LS257B and 'LS258B Offer Three Times the Sink-Current Capability of the Original 'LS257 and 'LS258
  • Same Pin Assignments as SN54LS157, SN74LS157, SN54S157, SN74S157, and SN54LS158, SN74LS158, SN54S158, SN74S158
  • Provides Bus Interface from Multiple Sources in High-Performance Systems

Off state (worst case)

 
  • Three-State Outputs Interface Directly with System Bus
  • 'LS257B and 'LS258B Offer Three Times the Sink-Current Capability of the Original 'LS257 and 'LS258
  • Same Pin Assignments as SN54LS157, SN74LS157, SN54S157, SN74S157, and SN54LS158, SN74LS158, SN54S158, SN74S158
  • Provides Bus Interface from Multiple Sources in High-Performance Systems

Off state (worst case)

 

These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G\) is at a high-logic level.

Series 54LS and 54S are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74LS and 74S are characterized for operation from 0°C to 70°C.

 

These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G\) is at a high-logic level.

Series 54LS and 54S are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74LS and 74S are characterized for operation from 0°C to 70°C.

 
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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt Quadruple 2-Line To 1-Line Data Selectors/Multiplexers datasheet 01.03.1988

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