SN74S257 Series

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

Catalog

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

Part	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Voltage Supply Source	Current - Output High, Low	Independent Circuits	Supplier Device Package	Package / Case	Package / Case	Package / Case	Type	Circuit [custom]	Circuit [custom]
Texas Instruments SN74S257N	70 °C	0 °C	4.75 V	5.25 V	Through Hole	Single Supply	6.5 mA 20 mA	1	16-PDIP	0.3 in	16-DIP	7.62 mm	Multiplexer	4	2:1

Catalog

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

Key Features

• Three-State Outputs Interface Directly with System Bus'LS257B and 'LS258B Offer Three Times the Sink-Current Capability of the Original 'LS257 and 'LS258Same Pin Assignments as SN54LS157, SN74LS157, SN54S157, SN74S157, and SN54LS158, SN74LS158, SN54S158, SN74S158Provides Bus Interface from Multiple Sources in High-Performance SystemsOff 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 'LS258Same Pin Assignments as SN54LS157, SN74LS157, SN54S157, SN74S157, and SN54LS158, SN74LS158, SN54S158, SN74S158Provides Bus Interface from Multiple Sources in High-Performance SystemsOff state (worst case)

Description

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.