74HC74D

Dual D-type flip-flop with set and reset; positive-edge trigger

The 74HC74 and 74HCT74 are dual positive edge triggered D-type flip-flop. They have individual data (nD), clock (nCP), set (nSD) and reset (nRD) inputs, and complementary nQ and nQ outputs. Data at the nD-input, that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition, is stored in the flip-flop and appears at the nQ output. Schmitt-trigger action in the clock input, makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC74D 74HC74D,653 933713380653 SOT108-1 Order product
74HC74D 74HC74D,652 933713380652 SOT108-1 Order product
74HC74D/S242 74HC74D/S242,118 935040540118 SOT108-1 Order product

Features

  • Input levels:
    • For 74HC74: CMOS level
    • For 74HCT74: TTL level
  • Symmetrical output impedance
  • Low power dissipation
  • High noise immunity
  • Balanced propagation delays
  • Specified in compliance 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 +85 °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)Rth(j-c) (K/W)Package name
74HC74DProduction2.0 - 6.0CMOS± 5.21482low-40~12510820.166SO14

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC74D74HC74D,653
( 9337 133 80653 )
Active74HC74D
SO14
(SOT108-1)
SOT108-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECC
74HC74D,652
( 9337 133 80652 )
Active74HC74DBulk Pack, CECC

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74HC74D74HC74D,653Not available84.96.621.51E811
74HC74D74HC74D,652Not available84.96.621.51E811
Quality and reliability disclaimer

Documentation (8)

File nameTitleTypeDate
74HC_HCT74Dual D-type flip-flop with set and reset; positive edge-triggerData sheet2017-03-30
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hchc Spice modelSPICE model2013-05-06
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT108-1_118SO14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-08
SOT108-1plastic, small outline package; 14 leads; 1.27 mm pitch; 8.65 mm x 3.9 mm x 1.75 mm bodyOutline drawing2018-10-18

Support

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Models

File nameTitleTypeDate
hchc Spice modelSPICE model2013-05-06

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC74D74HC74D,653933713380653Reel 13" Q1/T1 CECCOrder product
74HC74D74HC74D,652933713380652Bulk Pack, CECCOrder product
74HC74D/S24274HC74D/S242,118935040540118Reel 13" Q1/T1Order product

Sample

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