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    74AHC157D

    Quad 2-input multiplexer

    The 74AHC/AHCT157 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 74AHC/AHCT157 are quad 2-input multiplexer which select 4 bits of data from two sources under the control of a common data select input (S). The enable input (E) is active LOW. When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other input conditions.

    Moving the data from two groups of registers to four common output buses is a common use of the 74AHC/AHCT157. The state of the common data select input (S) determines the particular register from which the data comes. It can also be used as function generator. The device is useful for implementing highly irregular logic by generating any four of the 16 different functions of two variables with one variable common. The 74AHC/AHCT157 is logic implementation of a 4-pole, 2-position switch, where the position of the switch is determine by the logic levels applied to S.

    The logic equations are:

    • 1Y = E × (1I1 × S + 1I0 × S)

    • 2Y = E × (2I1 × S + 2I0 × S)

    • 3Y = E × (3I1 × S + 3I0 × S)

    • 4Y = E × (4I1 × S + 4I0 × S)

    Features and benefits

    • Balanced propagation delays

    • All inputs have a Schmitt-trigger action

    • Inputs accepts voltages higher than VCC

    • Multiple input enable for easy expansion

    • Ideal for memory chip select decoding

    • For 74AHC157 only: operates with CMOS input levels

    • For 74AHCT157 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
    74AHC157D Production 2.0 - 5.5 CMOS ± 8 3.2 low -40~125 91 8.9 50 SO16

    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
    74AHC157D 74AHC157D,118
    (935263998118)
    Active 74AHC157D SOT109-1
    SO16
    (SOT109-1)
    SOT109-1 SO-SOJ-REFLOW
    SO-SOJ-WAVE
    WAVE_BG-BD-1
    SOT109-1_118

    环境信息

    型号 可订购的器件编号 化学成分 RoHS RHF指示符
    74AHC157D 74AHC157D,118 74AHC157D rohs rhf rhf
    品质及可靠性免责声明

    文档 (12)

    文件名称 标题 类型 日期
    74AHC_AHCT157 Quad 2-input multiplexer Data sheet 2024-03-07
    AN11106 Pin FMEA for AHC/AHCT family Application note 2019-01-09
    SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22
    ahc157 ahc157 IBIS model IBIS model 2013-04-08
    Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
    SO16_SOT109-1_mk plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm body Marcom graphics 2017-01-28
    SOT109-1 plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body Package information 2023-11-07
    SOT109-1_118 SO16; Reel pack for SMD, 13"; Q1/T1 product orientation Packing information 2024-02-19
    74AHC157D_Nexperia_Product_Reliability 74AHC157D Nexperia Product Reliability Quality document 2023-05-29
    SO-SOJ-REFLOW Footprint for reflow soldering Reflow soldering 2009-10-08
    SO-SOJ-WAVE Footprint for wave soldering Wave soldering 2009-10-08
    WAVE_BG-BD-1 Wave soldering profile Wave soldering 2021-09-08

    支持

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    模型

    文件名称 标题 类型 日期
    ahc157 ahc157 IBIS model IBIS model 2013-04-08
    SOT109-1 3D model for products with SOT109-1 package Design support 2020-01-22

    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
    74AHC157D 74AHC157D,118 935263998118 Active SOT109-1_118 2,500 订单产品

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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
    74AHC157D 74AHC157D,118 935263998118 SOT109-1 订单产品
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