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74LVC138A

3-to-8 line decoder/demultiplexer; inverting

The 74LVC138A decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The 74LVC138A features three enable inputs (E1, E2 and E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the 74LVC138A to a 1-of-32 (5 to 32 lines) decoder with just four 74LVC138A ICs and one inverter. The 74LVC138A can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

特性

  • Overvoltage tolerant inputs to 5.5 V

  • Wide supply voltage range from 1.2 V to 3.6 V

  • CMOS low power consumption

  • Direct interface with TTL levels

  • Demultiplexing capability

  • Multiple input enable for easy expansion

  • Ideal for memory chip select decoding

  • Mutually exclusive outputs

  • Output drive capability 50 Ω transmission lines at 125 °C

  • Complies with JEDEC standard:

    • JESD8-7A (1.65 V to 1.95 V)

    • JESD8-5A (2.3 V to 2.7 V)

    • JESD8-C/JESD36 (2.7 V to 3.6 V)

  • 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
74LVC138ABQProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1259414.563DHVQFN16
74LVC138ADProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1259310.152.8SO16
74LVC138APWProduction1.2 - 3.6CMOS/LVTTL± 242.7low-40~1251264.855.9TSSOP16

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)）
74LVC138ABQ
DHVQFN16
(SOT763-1) 		SOT763-1SOT763-1_115ActiveVC138A74LVC138ABQ,115
( 9352 733 34115 )
74LVC138AD
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74LVC138AD74LVC138AD,118
( 9352 607 45118 )
74LVC138APW
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveLVC138A74LVC138APW,118
( 9352 607 47118 )

下表中的版本已停产。参见表 停产信息 了解更多信息。

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)）
74LVC138AD
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_112Withdrawn / End-of-life74LVC138AD74LVC138AD,112
( 9352 607 45112 )
74LVC138APW
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_112Withdrawn / End-of-lifeLVC138A74LVC138APW,112
( 9352 607 47112 )

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
74LVC138AD9352607451122021-12-312022-06-3074LVC138AD
    74LVC138APW9352607471122021-12-312022-06-3074LVC138APW

      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
      74LVC138ABQ74LVC138ABQ,11574LVC138ABQAlways Pb-free
      74LVC138AD74LVC138AD,11874LVC138ADweek 12, 2005
      74LVC138APW74LVC138APW,11874LVC138APWweek 10, 2005

      下表中的版本已停产。参见表 停产信息 了解更多信息。

      型号可订购的器件编号化学成分RoHSRHF指示符无铅转换日期
      74LVC138AD74LVC138AD,11274LVC138ADweek 12, 2005
      74LVC138APW74LVC138APW,11274LVC138APWweek 10, 2005
      品质及可靠性免责声明

      文档 (13)

      文件名称标题类型日期
      74LVC138A3-to-8 line decoder/demultiplexer; invertingData sheet2024-02-12
      AN263Power considerations when using CMOS and BiCMOS logic devicesApplication note2023-02-07
      AN11009Pin FMEA for LVC familyApplication note2019-01-09
      lvc138alvc138a IBIS modelIBIS model2013-04-07
      Nexperia_Selection_guide_2023Nexperia Selection Guide 2023Selection guide2023-05-10
      lvclvc Spice modelSPICE model2013-05-06
      SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyPackage information2023-05-11
      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
      lvc138alvc138a IBIS modelIBIS model2013-04-07
      lvclvc Spice modelSPICE model2013-05-06

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