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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)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHC273BQ74HC273BQ,115
( 9352 745 87115 )
74HC273D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HC273D74HC273D,653
( 9337 154 40653 )
74HC273PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHC27374HC273PW,118
( 9351 858 30118 )
74HCT273BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHCT273BQ74HCT273BQ,115
( 9352 745 88115 )
74HCT273D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HCT273D74HCT273D,653
( 9337 155 50653 )
74HCT273PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHCT27374HCT273PW,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
Bulk Pack, CECCDiscontinued / End-of-life74HC273D74HC273D,652
( 9337 154 40652 )
74HC273PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHC27374HC273PW,112
( 9351 858 30112 )
74HCT273D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk Pack, CECCDiscontinued / End-of-life74HCT273D74HCT273D,652
( 9337 155 50652 )
74HCT273PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHCT27374HCT273PW,112
( 9351 858 20112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HC273D933715440652
74HC273PW935185830112
74HCT273D933715550652
74HCT273PW935185820112

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC273BQ74HC273BQ,11574HC273BQAlways Pb-free29.90.91.11E911
74HC273D74HC273D,65374HC273Dweek 30, 200429.90.91.11E911
74HC273PW74HC273PW,11874HC273PWweek 7, 200529.90.91.11E911
74HCT273BQ74HCT273BQ,11574HCT273BQAlways Pb-free29.90.91.11E911
74HCT273D74HCT273D,65374HCT273Dweek 30, 200429.90.91.11E911
74HCT273PW74HCT273PW,11874HCT273PWweek 7, 200529.90.91.11E911

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

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC273D74HC273D,65274HC273Dweek 30, 200429.90.91.11E911
74HC273PW74HC273PW,11274HC273PWweek 7, 200529.90.91.11E911
74HCT273D74HCT273D,65274HCT273Dweek 30, 200429.90.91.11E911
74HCT273PW74HCT273PW,11274HCT273PWweek 7, 200529.90.91.11E911
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 Spice modelSPICE model2013-05-06
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 information2021-08-17
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 information2020-04-21
SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyPackage information2020-04-21
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08

Support

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Models

File nameTitleTypeDate
hchc Spice modelSPICE model2013-05-06

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