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    74AHC138BQ

    3-to-8 line decoder/demultiplexer; inverting

    The 74AHC138; 74AHCT138 are high-speed Si-gate CMOS devices and are pin compatible with Low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A.

    The 74AHC138; 74AHCT138 is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs (A0, A1 and A2) and, when enabled, provides eight mutually exclusive outputs (Y0 to Y7) that are LOW when selected.

    There are three enable inputs: two active LOW (E1 and E2) and one active HIGH (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 device to a 1-of-32 (5 lines to 32 lines) decoder with just four 74AHC138; 74AHCT138 devices and one inverter. The 74AHC138; 74AHCT138 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. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state.

    Features and benefits

    • Balanced propagation delays

    • All inputs have Schmitt-trigger action

    • Demultiplexing capability

    • Multiple input enable for easy expansion

    • Ideal for memory chip select decoding

    • Inputs accepts voltages higher than VCC

    • For 74AHC138 only: operates with CMOS input levels

    • For 74AHCT138 only: operates with TTL input levels

    • ESD protection:

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

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

    • Multiple package options

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

    参数类型

    型号 Product status VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name
    74AHC138BQ Production 2.0 - 5.5 CMOS ± 8 4.4 low -40~125 93 13.8 62 DHVQFN16

    PCB Symbol, Footprint and 3D Model

    Model Name 描述

    封装

    型号 可订购的器件编号,(订购码(12NC)) 状态 标示 封装 外形图 回流焊/波峰焊 包装
    74AHC138BQ 74AHC138BQ,115
    (935285572115)
    Active AHC138 SOT763-1
    DHVQFN16
    (SOT763-1)
    SOT763-1 SOT763-1_115

    环境信息

    型号 可订购的器件编号 化学成分 RoHS RHF指示符
    74AHC138BQ 74AHC138BQ,115 74AHC138BQ rohs rhf rhf
    品质及可靠性免责声明

    文档 (9)

    文件名称 标题 类型 日期
    74AHC_AHCT138 3-to-8 line decoder/demultiplexer; inverting Data sheet 2024-02-29
    AN11106 Pin FMEA for AHC/AHCT family Application note 2019-01-09
    SOT763-1 3D model for products with SOT763-1 package Design support 2019-10-03
    ahc138 ahc138 IBIS model IBIS model 2013-04-08
    Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
    DHVQFN16_SOT763-1_mk plastic, 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 0.85 mm body Marcom graphics 2017-01-28
    SOT763-1 plastic, 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 body Package information 2023-05-11
    SOT763-1_115 DHVQFN16; Reel pack, SMD, 7" Q1/T1 product orientation Packing information 2020-04-21
    74AHC138BQ_Nexperia_Product_Reliability 74AHC138BQ Nexperia Product Reliability Quality document 2023-05-29

    支持

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    模型

    文件名称 标题 类型 日期
    ahc138 ahc138 IBIS model IBIS model 2013-04-08
    SOT763-1 3D model for products with SOT763-1 package Design support 2019-10-03

    PCB Symbol, Footprint and 3D Model

    Model Name 描述

    订购、定价与供货

    型号 Orderable part number Ordering code (12NC) 状态 包装 Packing Quantity 在线购买
    74AHC138BQ 74AHC138BQ,115 935285572115 Active SOT763-1_115 3,000 订单产品

    样品

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    How does it work?

    The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

    可订购部件

    型号 可订购的器件编号 订购代码(12NC) 封装 从经销商处购买
    74AHC138BQ 74AHC138BQ,115 935285572115 SOT763-1 订单产品
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