Nexperia
Or cross multiple parts
×

74AHC257; 74AHCT257

Quad 2-input multiplexer; 3-state

The 74AHC257; 74AHCT257 is a quad 2-input multiplexer with 3-state outputs. Inputs are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

特性

  • Balanced propagation delays

  • All inputs have Schmitt-trigger actions

  • Non-inverting data path

  • Wide supply voltage range from 2.0 V to 5.5 V

  • Input levels:

    • For 74AHC257: CMOS level

    • For 74AHCT257: TTL level

  • Overvoltage tolerant inputs to 5.5 V

  • High noise immunity

  • CMOS low power dissipation

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level A

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

参数类型

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHC257DProduction2.0 - 5.5CMOS± 82.9low-40~1259410.353SO16
74AHC257PWProduction2.0 - 5.5CMOS± 82.9low-40~1251264.956.3TSSOP16
74AHCT257DProduction4.5 - 5.5TTL± 83.7low-40~125939.752SO16
74AHCT257PWProduction4.5 - 5.5TTL± 83.7low-40~1251254.654.9TSSOP16

封装

型号封装尺寸版本回流焊/波峰焊包装状态标示可订购的器件编号，（订购码(12NC)）
74AHC257D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74AHC257D74AHC257D,118
( 9352 654 67118 )
74AHC257PW
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveAHC25774AHC257PW,118
( 9352 654 68118 )
74AHCT257D
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74AHCT257D74AHCT257D,118
( 9352 654 69118 )
74AHCT257PW
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveAHCT25774AHCT257PW,118
( 9352 654 70118 )

停产信息

型号可订购的器件编号，（订购码(12NC)）最后一次购买日期最后一次交货日期替代产品状态备注
74AHC257D9352654671122021-12-312022-06-3074AHC257D
    74AHC257PW9352654681122021-12-312022-06-3074AHC257PW
      74AHCT257D9352654691122021-12-312022-06-3074AHCT257D
        74AHCT257PW9352654701122018-12-312019-06-3074AHCT257PW

          环境信息

          型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
          74AHC257D74AHC257D,11874AHC257Dweek 35, 2004
          74AHC257PW74AHC257PW,11874AHC257PWweek 10, 2005
          74AHCT257D74AHCT257D,11874AHCT257Dweek 35, 2004
          74AHCT257PW74AHCT257PW,11874AHCT257PWweek 10, 2005
          品质及可靠性免责声明

          文档 (9)

          文件名称标题类型日期
          74AHC_AHCT257Quad 2-input multiplexer; 3-stateData sheet2024-03-07
          ahct257ahct257 IBIS modelIBIS model2013-04-07
          ahc257ahc257 IBIS modelIBIS model2013-04-07
          SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
          SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
          WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
          SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
          SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
          SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

          支持

          如果您需要设计/技术支持，请告知我们并填写 应答表, 我们会尽快回复您。

          模型

          文件名称标题类型日期
          ahct257ahct257 IBIS modelIBIS model2013-04-07
          ahc257ahc257 IBIS modelIBIS model2013-04-07

          订购、定价与供货

          样品

          安世半导体客户可通过我们的销售机构或直接通过在线样品商店订购样品： https://extranet.nexperia.com.

          样品订单通常需要2-4天寄送时间。

          如果您尚未取得安世半导体的直接采购帐号，我们的全球与区域经销网络可以协助您取得样品。