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74LVC574A

Octal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-state

The 74LVC574A is an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs. The device features a clock (CP) and output enable (OE) inputs. The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CP) transition. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the flip-flops. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output, preventing the potentially damaging backflow current through the device when it is powered down.

Features and benefits

  • Wide supply voltage range from 1.2 to 3.6 V
  • CMOS low power consumption
  • Direct interface with TTL levels
  • Overvoltage tolerant inputs to 5.5 V
  • High-impedance when VCC = 0 V
  • 8-bit positive edge-triggered register
  • Independent register and 3-state buffer operation
  • Flow-through pin-out architecture
  • IOFF circuitry provides partial Power-down mode operation
  • Complies with JEDEC standard:
    • JESD8-7A (1.65 V to 1.95 V)
    • JESD8-5A (2.3 V to 2.7 V)
    • JESD8-C/JESD36 (2.7 V to 3.6 V)
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-B exceeds 200 V
    • CDM JESD22-C101E exceeds 1000 V
  • Specified from -40 °C to +85 °C and -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
74LVC574ABQProduction1.2 - 3.6CMOS/LVTTL± 243.2150low-40~125799.550DHVQFN20
74LVC574ADProduction1.2 - 3.6CMOS/LVTTL± 243.2150low-40~1258527.661SO20
74LVC574APWProduction1.2 - 3.6CMOS/LVTTL± 243.2150low-40~1251014.745TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74LVC574ABQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveLVC574A74LVC574ABQ,115
( 9352 735 17115 )
74LVC574AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1Active74LVC574AD74LVC574AD,118
( 9352 190 30118 )
74LVC574APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveLVC574A74LVC574APW,118
( 9352 190 50118 )

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))
74LVC574AD
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk PackDiscontinued / End-of-life74LVC574AD74LVC574AD,112
( 9352 190 30112 )
74LVC574APW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeLVC574A74LVC574APW,112
( 9352 190 50112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74LVC574AD935219030112
74LVC574APW935219050112

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74LVC574ABQ74LVC574ABQ,11574LVC574ABQAlways Pb-free19.30.52E911
74LVC574AD74LVC574AD,11874LVC574ADweek 30, 200419.30.52E911
74LVC574APW74LVC574APW,11874LVC574APWweek 7, 200519.30.52E911

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
74LVC574AD74LVC574AD,11274LVC574ADweek 30, 200419.30.52E911
74LVC574APW74LVC574APW,11274LVC574APWweek 7, 200519.30.52E911
Quality and reliability disclaimer

Documentation (11)

File nameTitleTypeDate
74LVC574AOctal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-stateData sheet2021-08-30
AN11009Pin FMEA for LVC familyApplication note2019-01-09
lvc574alvc574a IBIS modelIBIS model2013-04-07
Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
Nexperia_Selection_guide_2021Nexperia Selection Guide 2021Selection guide2021-01-08
lvclvc Spice modelSPICE model2013-05-06
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
lvc574alvc574a IBIS modelIBIS model2013-04-07
lvclvc Spice modelSPICE model2013-05-06

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