Bipolar transistors

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ESD protection, TVS, filtering and signal conditioning

MOSFETs

SiC MOSFETs

GaN FETs

IGBTs

Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

74HC273; 74HCT273

Octal D-type flip-flop with reset; positive-edge trigger

The 74HC273; 74HCT273 is an octal positive-edge triggered D-type flip-flop. The device features clock (CP) and master reset (MR) inputs. The outputs Qn will assume the state of their corresponding Dn inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CP) transition. A LOW on MR forces the outputs LOW independently of clock and data inputs. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • 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 74HC273: CMOS level

    • For 74HCT273: TTL level

  • Common clock and master reset

  • Eight positive edge-triggered D-type flip-flops

  • ESD protection:

    • HBM JESD22-A114F exceeds 2000 V

    • MM JESD22-A115-A exceeds 200 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)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC273BQProduction2.0 - 6.0CMOS± 5.215122low-40~125789.450DHVQFN20
74HC273DProduction2.0 - 6.0CMOS± 5.215122low-40~1258527.561SO20
74HC273PWProduction2.0 - 6.0CMOS± 5.215122low-40~1251004.644.9TSSOP20
74HCT273BQProduction4.5 - 5.5TTL± 41536low-40~125789.450DHVQFN20
74HCT273DProduction4.5 - 5.5TTL± 41536low-40~1258527.561SO20
74HCT273PWProduction4.5 - 5.5TTL± 41536low-40~1251004.644.9TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC273BQ
DHVQFN20
(SOT764-1)
SOT764-1SOT764-1_115ActiveHC273BQ74HC273BQ,115
( 9352 745 87115 )
74HC273D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
SOT163-1_653Active74HC273D74HC273D,653
( 9337 154 40653 )
74HC273PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveHC27374HC273PW,118
( 9351 858 30118 )
74HCT273BQ
DHVQFN20
(SOT764-1)
SOT764-1SOT764-1_115ActiveHCT273BQ74HCT273BQ,115
( 9352 745 88115 )
74HCT273D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
SOT163-1_653Active74HCT273D74HCT273D,653
( 9337 155 50653 )
74HCT273PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_118ActiveHCT27374HCT273PW,118
( 9351 858 20118 )

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC273D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
SOT163-1_652Withdrawn / End-of-life74HC273D74HC273D,652
( 9337 154 40652 )
74HC273PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
SOT360-1_112Withdrawn / End-of-lifeHC27374HC273PW,112
( 9351 858 30112 )
74HCT273D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
SOT163-1_652Withdrawn / End-of-life74HCT273D74HCT273D,652
( 9337 155 50652 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HC273D9337154406522021-12-312022-06-3074HC273D
    74HC273PW9351858301122021-12-312022-06-3074HC273PW
      74HCT273D9337155506522021-12-312022-06-3074HCT273D
        74HCT273PW9351858201122021-12-312022-06-3074HCT273PW

          Environmental information

          Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
          74HC273BQ74HC273BQ,11574HC273BQAlways Pb-free
          74HC273D74HC273D,65374HC273Dweek 30, 2004
          74HC273PW74HC273PW,11874HC273PWweek 7, 2005
          74HCT273BQ74HCT273BQ,11574HCT273BQAlways Pb-free
          74HCT273D74HCT273D,65374HCT273Dweek 30, 2004
          74HCT273PW74HCT273PW,11874HCT273PWweek 7, 2005

          The variants in the table below are discontinued. See the table Discontinuation information for more information.

          Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
          74HC273D74HC273D,65274HC273Dweek 30, 2004
          74HC273PW74HC273PW,11274HC273PWweek 7, 2005
          74HCT273D74HCT273D,65274HCT273Dweek 30, 2004
          Quality and reliability disclaimer

          Documentation (9)

          File nameTitleTypeDate
          74HC_HCT273Octal D-type flip-flop with reset; positive-edge triggerData sheet2021-09-06
          AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
          hcHC/HCT Spice modelSPICE model2022-02-17
          HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
          SOT764-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 20 terminals; 0.5 mm pitch; 4.5 mm x 2.5 mm x 1 mm bodyPackage information2022-06-21
          SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
          SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyPackage information2022-06-21
          SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2022-06-20
          WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

          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
          hcHC/HCT Spice modelSPICE model2022-02-17

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