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74HC123-Q100; 74HCT123-Q100

Dual retriggerable monostable multivibrator with reset

The 74HC123-Q100; 74HCT123-Q100 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 include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Schmitt-trigger action in the nA and nB inputs, makes the circuit highly tolerant to slower input rise and fall times.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

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

  • 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 standards:

    • JESD8C (2.7 V to 3.6 V)
    • JESD7A (2.0 V to 6.0 V)

  • Input levels:

    • For 74HC123-Q100: CMOS level

    • For 74HCT123-Q100: TTL level

  • 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

  • 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

  • DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints

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
74HC123BQ-Q100Production2.0 - 6.0CMOS± 7.89low-40~1259011.859DHVQFN16
74HC123D-Q100Production2.0 - 6.0CMOS± 5.226low-40~125908.349SO16
74HC123PW-Q100Production2.0 - 6.0CMOS± 5.226low-40~1251223.951.5TSSOP16
74HCT123D-Q100Production4.5 - 5.5TTL± 426low-40~125908.349SO16
74HCT123PW-Q100Production4.5 - 5.5TTL± 426low-40~1251223.951.5TSSOP16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC123BQ-Q100
DHVQFN16
(SOT763-1) 		SOT763-1SOT763-1_115ActiveHC12374HC123BQ-Q100,115
( 9352 990 41115 )
74HC123D-Q100
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74HC123D74HC123D-Q100,118
( 9352 990 42118 )
74HC123PW-Q100
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHC12374HC123PW-Q100,118
( 9352 990 43118 )
74HCT123D-Q100
SO16
(SOT109-1) 		SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
SOT109-1_118Active74HCT123D74HCT123D-Q100J
( 9352 990 45118 )
74HCT123PW-Q100
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118ActiveHCT12374HCT123PW-Q100,11
( 9352 990 46118 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HCT123D-Q100935299045115

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
74HC123BQ-Q10074HC123BQ-Q100,11574HC123BQ-Q100Always Pb-free
74HC123D-Q10074HC123D-Q100,11874HC123D-Q100Always Pb-free
74HC123PW-Q10074HC123PW-Q100,11874HC123PW-Q100Always Pb-free
74HCT123D-Q10074HCT123D-Q100J74HCT123D-Q100week 25, 2019
74HCT123PW-Q10074HCT123PW-Q100,1174HCT123PW-Q100Always Pb-free
Quality and reliability disclaimer

Documentation (11)

File nameTitleTypeDate
74HC_HCT123_Q100Dual retriggerable monostable multivibrator with resetData sheet2024-02-21
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hcHC/HCT Spice modelSPICE model2022-02-17
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SOT763-1plastic, 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 bodyPackage information2023-05-11
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

Support

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Models

File nameTitleTypeDate
hcHC/HCT Spice modelSPICE model2022-02-17

Ordering, pricing & availability

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