74HC4020-Q100; 74HCT4020-Q100

14-stage binary ripple counter

The 74HC4020-Q100; 74HCT4020-Q100 are 14-stage binary ripple counters with a clock input (CP), an overriding asynchronous master reset input (MR) and 12 buffered parallel outputs (Q0, and Q3 to Q13). The counter advances on the HIGH‑to‑LOW transition of CP. A HIGH on MR clears all counter stages and forces all outputs LOW, independent of the state of CP. Each counter stage is a static toggle flip-flop. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.


  • Automotive product qualification in accordance with AEC‑Q100 (Grade 1)
    • Specified from -40°C to +85°C and from -40°C to +125°C
  • Input levels:
    • For 74HC4020-Q100: CMOS level
    • For 74HCT4020-Q100: TTL level
  • Complies with JEDEC standard no. 7A
  • ESD protection:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C=200pF, R = 0Ω)
  • Multiple package options

Target applications

  • Frequency dividing circuits
  • Time delay circuits
  • Control counters


Type numberProduct statusVCC (V)Output drive capability (mA)Logic switching levelstpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC4020BQ-Q100Production2.0 - 6.0± 5.2CMOS11101low-40~125837.051DHVQFN16
74HC4020D-Q100Production2.0 - 6.0± 5.2CMOS11101low-40~125835.241SO16
74HC4020PW-Q100Production2.0 - 6.0± 5.2CMOS11101low-40~1251162.344TSSOP16
74HCT4020BQ-Q100Production4.5 - 5.5± 4TTL1552low-40~125837.051DHVQFN16
74HCT4020D-Q100Production4.5 - 5.5± 4TTL1552low-40~125824.840SO16
74HCT4020PW-Q100Production4.5 - 5.5± 4TTL1552low-40~1251162.344TSSOP16


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT763-1Reel 7" Q1/T1ActiveHC402074HC4020BQ-Q100X
( 9353 020 96115 )
Reel 13" Q1/T1Active74HC4020D74HC4020D-Q100J
( 9353 003 35118 )
Reel 13" Q1/T1ActiveHC402074HC4020PW-Q100J
( 9353 003 36118 )
SOT763-1Reel 7" Q1/T1ActiveHT402074HCT4020BQ-Q100X
( 9353 020 97115 )
Reel 13" Q1/T1Active74HCT4020D74HCT4020D-Q100J
( 9353 003 37118 )
Reel 13" Q1/T1ActiveHCT402074HCT4020PW-Q100J
( 9353 003 38118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRMSLMSL leadfree
74HC4020BQ-Q10074HC4020BQ-Q100X74HC4020BQ-Q100Always Pb-free84.911
74HC4020D-Q10074HC4020D-Q100J74HC4020D-Q100Always Pb-free84.911
74HC4020PW-Q10074HC4020PW-Q100J74HC4020PW-Q100Always Pb-free84.911
74HCT4020BQ-Q10074HCT4020BQ-Q100X74HCT4020BQ-Q100Always Pb-free84.911
74HCT4020D-Q10074HCT4020D-Q100J74HCT4020D-Q100Always Pb-free84.911
74HCT4020PW-Q10074HCT4020PW-Q100J74HCT4020PW-Q100Always Pb-free84.911
Quality and reliability disclaimer

Documentation (17)

File nameTitleTypeDate
74HC_HCT4020_Q10014-stage binary ripple counterData sheet2017-05-03
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hchc Spice modelSPICE model2013-05-06
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyOutline drawing2018-11-14
SOT763-1_115DHVQFN16; Reel pack, SMD, 7" Q1/T1 product orientationPacking2020-02-13
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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File nameTitleTypeDate
hchc Spice modelSPICE model2013-05-06


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