SN74LS257B

Name: SN74LS257B
Brand: TI
SKU: SN74LS257B
Price: 0.26 USD

활성

3상 출력을 지원하는 쿼드러플 2라인-1라인 데이터 선택기/멀티플렉서

지금 주문

데이터 시트

document-pdfAcrobat Quadruple 2-Line To 1-Line Data Selectors/Multiplexers datasheet (영어)

SN74LS257B

활성

데이터 시트

지금 주문

제품 상세 정보

Technology family

Function

Digital Multiplexer

Configuration

2:1

Number of channels

Operating temperature range (°C)

0 to 70

Rating

Catalog

Technology family

Function

Digital Multiplexer

Configuration

2:1

Number of channels

Operating temperature range (°C)

0 to 70

Rating

Catalog

PDIP (N)

181.42 mm² 19.3 x 9.4

SOIC (D)

59.4 mm² 9.9 x 6

SOP (NS)

79.56 mm² 10.2 x 7.8

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.

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