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    74LVC161PW

    Presettable synchronous 4-bit binary counter; asynchronous reset

    The 74LVC161 is a synchronous presettable binary counter with an internal look-head carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positive-going edge of the clock (CP). The outputs (Q0 to Q3) of the counters may be preset HIGH or LOW. A LOW at the parallel enable input (PE) disables the counting action and causes the data at the data inputs (D0 to D3) to be loaded into the counter on the positive-going edge of the clock. Preset takes place regardless of the levels at count enable inputs (CEP and CET). A LOW at the master reset input (MR) sets Q0 to Q3 LOW regardless of the levels at input pins CP, PE, CET and CEP (thus providing an asynchronous clear function). The look-ahead carry simplifies serial cascading of the counters. Both CEP and CET must be HIGH to count. The CET input is fed forward to enable the terminal count output (TC). The TC output thus enabled will produce a HIGH output pulse of a duration approximately equal to a HIGH output of Q0. This pulse can be used to enable the next cascaded stage.

    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.

    Features and benefits

    • Overvoltage tolerant inputs to 5.5 V

    • Wide supply voltage range from 1.2 V to 3.6 V

    • CMOS low power dissipation

    • Direct interface with TTL levels

    • Asynchronous reset

    • Synchronous counting and loading

    • Two count enable inputs for n-bit cascading

    • Positive edge-triggered clock

    • 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 -40 °C to +125 °C

    参数类型

    型号 Product status VCC (V) Output drive capability (mA) Logic switching levels tpd (ns) Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name
    74LVC161PW Production 1.2 - 3.6 ± 24 CMOS/LVTTL 4.9 low -40~125 125 4.6 54.7 TSSOP16

    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
    74LVC161PW 74LVC161PW,118
    (935210530118)    		 Active LVC161 SOT403-1
    TSSOP16
    (SOT403-1)     		SOT403-1 SSOP-TSSOP-VSO-WAVE
    		SOT403-1_118

    环境信息

    型号 可订购的器件编号 化学成分 RoHS RHF指示符
    74LVC161PW 74LVC161PW,118 74LVC161PW 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
    74LVC161 Presettable synchronous 4-bit binary counter; asynchronous reset Data sheet 2024-02-12
    AN11009 Pin FMEA for LVC family Application note 2019-01-09
    AN263 Power considerations when using CMOS and BiCMOS logic devices Application note 2023-02-07
    SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22
    lvc161 lvc161 IBIS model IBIS model 2013-04-08
    Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
    TSSOP16_SOT403-1_mk plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
    SOT403-1 plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body Package information 2023-11-08
    SOT403-1_118 TSSOP16; Reel pack for SMD, 13"; Q1/T1 product orientation Packing information 2020-04-21
    74LVC161PW_Nexperia_Product_Reliability 74LVC161PW Nexperia Product Reliability Quality document 2023-05-29
    lvc lvc Spice model SPICE model 2013-05-07
    SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

    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
    lvc161 lvc161 IBIS model IBIS model 2013-04-08
    lvc lvc Spice model SPICE model 2013-05-07
    SOT403-1 3D model for products with SOT403-1 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
    74LVC161PW 74LVC161PW,118 935210530118 Active SOT403-1_118 2,500 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
    74LVC161PW 74LVC161PW,118 935210530118 SOT403-1 订单产品
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