74HC73DB NRND

Dual JK flip-flop with reset; negative-edge trigger

The 74HC73 is a dual negative edge triggered JK flip-flop with individual J, K, clock (nCP) and reset (nR) inputs and complementary nQ and nQ outputs. The J and K inputs must be stable one set-up time prior to the HIGH-to-LOW clock transition for predictable operation. (nR) is asynchronous, when LOW it overrides the clock and data inputs, forcing the nQ output LOW and the nQ output HIGH. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times. 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.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC73DB 74HC73DB,118 935190270118 SOT337-1 Order product
74HC73DB 74HC73DB,112 935190270112 SOT337-1 Order product

Features

  • Low-power dissipation
  • Complies with JEDEC standard no. 7A
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from -40 °C to +80 °C and from -40 °C to +125 °C

Target applications

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)Package name
74HC73DB
NRND
Not for design in2.0 - 6.0CMOS+/- 5.21677low-40~12515640.0SSOP14

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC73DB
NRND
74HC73DB,118
( 9351 902 70118 )
ActiveHC73
SSOP14
(SOT337-1)
SOT337-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1

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

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC73DB
NRND
74HC73DB,112
( 9351 902 70112 )
Withdrawn / End-of-lifeHC73
SSOP14
(SOT337-1)
SOT337-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Bulk Pack

Discontinuation information

Type numberOrderable part numberlabel.orderingCodeLast time buy dateLast time delivery dateReplacement productStatusComments
74HC73DB
NRND
74HC73DB,1129351902701122018-12-312019-06-3074HC73DBFull withdrawal

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC73DB
NRND
74HC73DB,11874HC73DB11

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

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC73DB
NRND
74HC73DB,11274HC73DB11
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
74HC73Dual JK flip-flop with reset; negative-edge triggerData sheet2017-03-30
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SOT337-1_118Standard product orientation 12NC ending 118Packing2013-04-04
SOT337-1plastic, shrink small outline package; 14 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18

Support

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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC73DB74HC73DB,118935190270118Reel 13" Q1/T1Order product
74HC73DB74HC73DB,112935190270112Bulk PackOrder product

Sample

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Sample orders normally take 2-4 days for delivery.

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