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74AHC123ABQ

Dual retriggerable monostable multivibrator with reset

The 74AHC123A; 74AHCT123A is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXT and CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or (nB). By repeating this process, the output pulse period (nQ = HIGH, nQ = LOW) can be made as long as desired. Alternatively, an output delay can be terminated at any time by a LOW-going edge on input nRD. Inputs are overvoltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.

Alternatives

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74AHC123ABQ 74AHC123ABQ,115 935285424115 SOT763-1 Order product

Features and benefits

  • Wide supply voltage range from 2.0 V to 5.5 V

  • DC triggered from active HIGH or active LOW inputs

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

  • Direct reset terminates output pulse

  • Overvoltage tolerant inputs to 5.5 V

  • All inputs have a Schmitt-trigger action

  • High noise immunity

  • Input levels:

    • For 74AHC123A: CMOS level

    • For 74AHCT123A: TTL level

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

  • 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

Parametrics

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
74AHC123ABQProduction2.0 - 5.5CMOS± 85.1low-40~1259414.463DHVQFN16

PCB Symbol, Footprint and 3D Model

Model NameDescription

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74AHC123ABQ74AHC123ABQ,115
( 9352 854 24115 ) 		ActiveAC123A
DHVQFN16
(SOT763-1) 		SOT763-1SOT763-1_115

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
74AHC123ABQ74AHC123ABQ,11574AHC123ABQ
Quality and reliability disclaimer

Series

Documentation (5)

File nameTitleTypeDate
74AHC_AHCT123ADual retriggerable monostable multivibrator with resetData sheet2023-09-04
AN11106Pin FMEA for AHC/AHCT familyApplication note2019-01-09
ahc123aahc123a IBIS modelIBIS model2013-04-08
74AHC123ABQ_Nexperia_Product_Reliability74AHC123ABQ Nexperia Product ReliabilityQuality document2023-05-29
SOT763-1_115DHVQFN16; Reel pack, SMD, 7" Q1/T1 product orientationPacking information2020-02-13

Support

If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.

Models

File nameTitleTypeDate
ahc123aahc123a IBIS modelIBIS model2013-04-08

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
74AHC123ABQ74AHC123ABQ,115935285424115SOT763-1_115- Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

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.

Interactive datasheet