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74HCT373DB

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.

Not recommended for new designs (NRND), click here for the alternative product.
This product has been discontinued, click here for discontinuation information and replacement parts.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT373DB 74HCT373DB,118 935174850118 SOT339-1 Order product
74HCT373DB 74HCT373DB,112 935174850112 SOT339-1 Order product

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

Applications

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)Package name
74HCT373DB
NRND 		End of life4.5 - 5.5TTL+/- 6148low-40~12513640.0SSOP20

Package

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74HCT373DB
NRND 		74HCT373DB,118
( 9351 748 50118 ) 		Discontinued / End-of-lifeHCT373
SSOP20
(SOT339-1) 		SOT339-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1
74HCT373DB,112
( 9351 748 50112 ) 		Discontinued / End-of-lifeHCT373Bulk Pack

Discontinuation information

Type numberOrderable part numberOrdering codeLast time buy dateLast time delivery dateReplacement productStatusComments
74HCT373DB
NRND 		74HCT373DB,1189351748501182020-06-302020-12-3074HCT373PWFull withdrawal
74HCT373DB
NRND 		74HCT373DB,1129351748501122020-06-302020-12-3074HCT373PWFull withdrawal

Quality, reliability & chemical content

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HCT373DB
NRND 		74HCT373DB,11874HCT373DB11
74HCT373DB
NRND 		74HCT373DB,11274HCT373DB11
Quality and reliability disclaimer

Documentation (4)

File nameTitleTypeDate
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hchc Spice modelSPICE model2013-05-06
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

Support

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Models

File nameTitleTypeDate
hchc Spice modelSPICE model2013-05-06