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74HCT4020D ECAD models PCB Symbol, Footprint & ECAD Model

14-stage binary ripple counter

The 74HT4020; 74HCT4020 is a 14-stage binary ripple counter 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. This device features reduced input threshold levels to allow interfacing to TTL logic levels. Inputs also include clamp diodes, this enables 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
74HCT4020D 74HCT4020D,653 933715250653 SOT109-1 Order product
74HCT4020D 74HCT4020D,652 933715250652 SOT109-1 Order product

Features

  • Wide supply voltage range from 2.0 V to 6.0 V
  • Input levels:
    • For 74HC4020: CMOS level
    • For 74HCT4020: TTL level
  • Multiple package options
  • Complies with JEDEC standard no. 7A
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Target applications

  • Frequency dividing circuits
  • Time delay circuits
  • Control counters

Parametrics

Type numberProduct statusVCC (V)Output drive capability (mA)Logic switching levelstpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HCT4020DProduction4.5 - 5.5± 4TTL15low-40~125814.840.2SO16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HCT4020D74HCT4020D,653
( 9337 152 50653 )
Active74HCT4020D
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECC
74HCT4020D,652
( 9337 152 50652 )
Active74HCT4020DBulk Pack, CECC

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
74HCT4020D74HCT4020D,65374HCT4020D84.96.621.51E811
74HCT4020D74HCT4020D,65274HCT4020D84.96.621.51E811
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
74HC_HCT402014-stage binary ripple counterData sheet2017-03-16
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
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

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
74HCT4020D74HCT4020D,653933715250653Reel 13" Q1/T1 CECCOrder product
74HCT4020D74HCT4020D,652933715250652Bulk Pack, CECCOrder product

Sample

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