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74HC573; 74HCT573

Octal D-type transparent latch; 3-state

The 74HC573; 74HCT573 is an 8-bit D-type transparent latch with 3-state outputs. The device features latch enable (LE) and output enable (OE) inputs. When LE is HIGH, data at the inputs enter the latches. In this condition the latches are transparent, a latch output will change each time its corresponding D-input changes. When LE is LOW the latches store the information that was present at the inputs a set-up time preceding the HIGH-to-LOW transition of LE. 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 latches. 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 to 6.0 V
  • CMOS low power dissipation
  • High noise immunity
  • Input levels:
    • For 74HC573: CMOS level
    • For 74HCT573: TTL level
  • Inputs and outputs on opposite sides of package allowing easy interface with microprocessors
  • Useful as input or output port for microprocessors and microcomputers
  • 3-state non-inverting outputs for bus-oriented applications
  • Common 3-state output enable input
  • 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)
  • 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)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC573BQProduction2.0 - 6.0CMOS± 7.8148low-40~125799.450DHVQFN20
74HC573DProduction2.0 - 6.0CMOS± 7.8148low-40~1258527.561SO20
74HC573PWProduction2.0 - 6.0CMOS± 7.8148low-40~1251004.644.9TSSOP20
74HCT573BQProduction4.5 - 5.5TTL± 6178low-40~125799.450DHVQFN20
74HCT573DProduction4.5 - 5.5TTL± 6178low-40~1258527.561SO20
74HCT573PWProduction4.5 - 5.5TTL± 6178low-40~1251004.644.9TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC573BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHC57374HC573BQ,115
( 9352 736 94115 )
74HC573D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HC573D74HC573D,653
( 9337 135 60653 )
74HC573PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHC57374HC573PW,118
( 9351 870 00118 )
74HCT573BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHCT57374HCT573BQ,115
( 9352 737 32115 )
74HCT573D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HCT573D74HCT573D,653
( 9337 135 70653 )
74HCT573PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHCT57374HCT573PW,118
( 9351 869 90118 )

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))
74HC573D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk Pack, CECCDiscontinued / End-of-life74HC573D74HC573D,652
( 9337 135 60652 )
74HC573PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHC57374HC573PW,112
( 9351 870 00112 )
74HCT573D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk Pack, CECCDiscontinued / End-of-life74HCT573D74HCT573D,652
( 9337 135 70652 )
74HCT573PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHCT57374HCT573PW,112
( 9351 869 90112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HC573BQ/S520935306251115
74HC573D933713560652
74HC573PW935187000112
74HCT573D933713570652
74HCT573PW935186990112

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC573BQ74HC573BQ,11574HC573BQAlways Pb-free29.90.91.11E911
74HC573D74HC573D,65374HC573Dweek 13, 200529.90.91.11E911
74HC573PW74HC573PW,11874HC573PWweek 7, 200529.90.91.11E911
74HCT573BQ74HCT573BQ,11574HCT573BQAlways Pb-free29.90.91.11E911
74HCT573D74HCT573D,65374HCT573Dweek 13, 200529.90.91.11E911
74HCT573PW74HCT573PW,11874HCT573PWweek 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
74HC573D74HC573D,65274HC573Dweek 13, 200529.90.91.11E911
74HC573PW74HC573PW,11274HC573PWweek 7, 200529.90.91.11E911
74HCT573D74HCT573D,65274HCT573Dweek 13, 200529.90.91.11E911
74HCT573PW74HCT573PW,11274HCT573PWweek 7, 200529.90.91.11E911
Quality and reliability disclaimer

Documentation (10)

File nameTitleTypeDate
74HC_HCT573Octal D-type transparent latch; 3-stateData sheet2021-09-10
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hc57374HC573 IBIS modelIBIS model2020-12-07
hct57374HCT573 IBIS modelIBIS model2020-12-08
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
hc57374HC573 IBIS modelIBIS model2020-12-07
hct57374HCT573 IBIS modelIBIS model2020-12-08

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