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74HC423BQ

Dual retriggerable monostable multivibrator with reset

The 74HC423 is a dual retriggerable monostable multivibrator with output pulse width control by two methods. The basic pulse time is programmed by selection of an external resistor (REXT) and capacitor (CEXT). Once triggered, the basic output pulse width may be extended by retriggering (nA) or (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. When nRD is LOW, it forces the nQ output LOW, the nQ output HIGH and also inhibits the triggering. Schmitt-trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower input rise and fall times. The '423' is identical to the '123' but cannot be triggered via the reset input. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • DC triggered from active HIGH or active LOW inputs

  • Retriggerable for very long pulses up to 100 % duty factor

  • Direct reset terminates output pulse

  • Schmitt-trigger action on all inputs except for the reset input

  • Wide supply voltage range from 2.0 V to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

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

  • Complies with JEDEC standard no. 7A

  • CMOS input level

  • 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

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
74HC423BQ Production 2.0 - 6.0 CMOS ± 5.2 23 low -40~125 80 4.3 47 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
74HC423BQ 74HC423BQ,115
(935285428115)		 Active HC423 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
74HC423BQ 74HC423BQ,115 74HC423BQ rohs rhf rhf
品质及可靠性免责声明

Series

文档 (9)

文件名称 标题 类型 日期
74HC423 Dual retriggerable monostable multivibrator with reset Data sheet 2024-03-13
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
SOT763-1 3D model for products with SOT763-1 package Design support 2019-10-03
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
74HC423BQ_Nexperia_Product_Reliability 74HC423BQ Nexperia Product Reliability Quality document 2023-05-29
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31

支持

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模型

文件名称 标题 类型 日期
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
74HC423BQ 74HC423BQ,115 935285428115 Active SOT763-1_115 3,000 订单产品

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。

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.

交互式数据手册

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
74HC423BQ 74HC423BQ,115 935285428115 SOT763-1 订单产品