74HC175; 74HCT175

Quad D-type flip-flop with reset; positive-edge trigger

The 74HC175; 74HCT175 are quad positive edge-triggered D-type flip-flops with individual data inputs (Dn) and both Qn and Qn outputs. The common clock (CP) and master reset (MR) inputs load and reset all flip-flops simultaneously. The D-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 Q output. A LOW on MR causes the flip-flops and outputs to be reset LOW.

The device is useful for applications where both the true and complement outputs are required and the clock and master reset are common to all storage elements.


  • Input levels:
    • For 74HC175: CMOS level
    • For 74HCT175: TTL level
  • Four edge-triggered D-type flip-flops
  • Asynchronous master reset
  • 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 +85 °C and ‑40 °C to +125 °C.


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
74HC175DProduction2.0 - 6.0CMOS± 5.21783low-40~125793.637SO16
74HC175PWProduction2.0 - 6.0CMOS± 5.21783low-40~1251131.841TSSOP16
74HCT175DProduction4.5 - 5.5TTL± 41654low-40~125793.637SO16
74HCT175PWProduction4.5 - 5.5TTL± 41654low-40~1251131.841TSSOP16


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
Reel 13" Q1/T1 CECCActive74HC175D74HC175D,653
( 9337 145 80653 )
Bulk Pack, CECCActive74HC175D74HC175D,652
( 9337 145 80652 )
Reel 13" Q1/T1ActiveHC17574HC175PW,118
( 9351 745 60118 )
Bulk PackActiveHC17574HC175PW,112
( 9351 745 60112 )
Reel 13" Q1/T1 CECCActive74HCT175D74HCT175D,653
( 9337 150 60653 )
Bulk Pack, CECCActive74HCT175D74HCT175D,652
( 9337 150 60652 )
Reel 13" Q1/T1ActiveHCT17574HCT175PW,118
( 9351 889 70118 )
Bulk PackActiveHCT17574HCT175PW,112
( 9351 889 70112 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74HC175D74HC175D,65374HC175Dweek 30, 200484.96.621.51E811
74HC175D74HC175D,65274HC175Dweek 30, 200484.96.621.51E811
74HC175PW74HC175PW,11874HC175PWweek 10, 200584.96.621.51E811
74HC175PW74HC175PW,11274HC175PWweek 10, 200584.96.621.51E811
74HCT175D74HCT175D,65374HCT175Dweek 6, 200484.96.621.51E811
74HCT175D74HCT175D,65274HCT175Dweek 6, 200484.96.621.51E811
74HCT175PW74HCT175PW,11874HCT175PWweek 10, 200584.96.621.51E811
74HCT175PW74HCT175PW,11274HCT175PWweek 10, 200584.96.621.51E811
Quality and reliability disclaimer

Documentation (14)

File nameTitleTypeDate
74HC_HCT175Quad D-type flip-flop with reset; positive-edge triggerData sheet2017-03-16
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SOT109-1_431SO16; Reel sulfur barrier pack, SMD, 13" Q1/T1 standard product orientation Orderable part number ending ,431 or Z Ordering code (12NC) ending 431Packing2016-08-25
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyOutline drawing2018-10-18
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT109-1_118SO16; Reel pack for SMD, 13"; Q1/T1 product orientationPacking2020-02-14
SOT403-1_118TSSOP16; Reel pack for SMD, 13"; Q1/T1 product orientationPacking2020-02-14
SOT403-1_623TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 623 or HL; Ordering code (12NC) ending 623Packing2013-05-15
SOT403-1_128TSSOP16; Reel pack; SMD, 13", Turned Q4/T2 180 deg product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128Packing2014-10-14
SOT403-1_653TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 653 or HL; Ordering code (12NC) ending 653Packing2013-05-15
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm bodyOutline drawing2018-11-14
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08


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