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74HC373; 74HCT373

Octal D-type transparent latch; 3-state

The 74HC373; 74HCT373 is an octal 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 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 74HC373: CMOS level
    • For 74HCT373: TTL level
  • 3-state non-inverting outputs for bus oriented applications
  • Common 3-state output enable input
  • 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
74HC373BQProduction2.0 - 6.0CMOS± 7.8128low-40~125789.150DHVQFN20
74HC373DProduction2.0 - 6.0CMOS± 7.8128low-40~1258527.361SO20
74HC373PWProduction2.0 - 6.0CMOS± 7.8128low-40~1251004.644.7TSSOP20
74HCT373BQProduction4.5 - 5.5TTL± 6148low-40~125789.150DHVQFN20
74HCT373DProduction4.5 - 5.5TTL± 6148low-40~1258527.361SO20
74HCT373PWProduction4.5 - 5.5TTL± 6148low-40~1251004.644.7TSSOP20

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74HC373BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHC373BQ74HC373BQ,115
( 9352 745 85115 )
74HC373D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HC373D74HC373D,653
( 9337 154 70653 )
74HC373PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHC37374HC373PW,118
( 9351 652 40118 )
74HCT373BQ
DHVQFN20
(SOT764-1)
SOT764-1Reel 7” Q1/T1 or Q2/T3ActiveHCT373BQ74HCT373BQ,115
( 9352 745 84115 )
74HCT373D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Reel 13" Q1/T1 CECCActive74HCT373D74HCT373D,653
( 9337 155 80653 )
74HCT373PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1ActiveHCT37374HCT373PW,118
( 9351 748 30118 )

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))
74HC373D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk Pack, CECCDiscontinued / End-of-life74HC373D74HC373D,652
( 9337 154 70652 )
74HC373PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHC37374HC373PW,112
( 9351 652 40112 )
74HCT373D
SO20
(SOT163-1)
SOT163-1WAVE_BG-BD-1
Bulk Pack, CECCDiscontinued / End-of-life74HCT373D74HCT373D,652
( 9337 155 80652 )
74HCT373PW
TSSOP20
(SOT360-1)
SOT360-1SSOP-TSSOP-VSO-WAVE
Bulk PackDiscontinued / End-of-lifeHCT37374HCT373PW,112
( 9351 748 30112 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments
74HC373D933715470652
74HC373PW935165240112
74HCT373D933715580652
74HCT373PW935174830112

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC373BQ74HC373BQ,11574HC373BQAlways Pb-free29.90.91.11E911
74HC373D74HC373D,65374HC373Dweek 30, 200429.90.91.11E911
74HC373PW74HC373PW,11874HC373PWweek 17, 200529.90.91.11E911
74HCT373BQ74HCT373BQ,11574HCT373BQAlways Pb-free29.90.91.11E911
74HCT373D74HCT373D,65374HCT373Dweek 30, 200429.90.91.11E911
74HCT373PW74HCT373PW,11874HCT373PWweek 17, 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
74HC373D74HC373D,65274HC373Dweek 30, 200429.90.91.11E911
74HC373PW74HC373PW,11274HC373PWweek 17, 200529.90.91.11E911
74HCT373D74HCT373D,65274HCT373Dweek 30, 200429.90.91.11E911
74HCT373PW74HCT373PW,11274HCT373PWweek 17, 200529.90.91.11E911
Quality and reliability disclaimer

Documentation (9)

File nameTitleTypeDate
74HC_HCT373Octal D-type transparent latch; 3-stateData 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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