74HC4020DB NRND

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.

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
74HC4020DB 74HC4020DB,118 935188720118 SOT338-1 Order product
74HC4020DB 74HC4020DB,112 935188720112 SOT338-1 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 (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74HC4020DB
NRND
Not for design in2.0 - 6.0+/- 5.2CMOS11low-40~12514842.0SSOP16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC4020DB
NRND
74HC4020DB,118
( 9351 887 20118 )
ActiveHC4020
SSOP16
(SOT338-1)
SOT338-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1
74HC4020DB,112
( 9351 887 20112 )
ActiveHC4020Bulk Pack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC4020DB
NRND
74HC4020DB,11874HC4020DB11
74HC4020DB
NRND
74HC4020DB,11274HC4020DB11
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
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SOT338-1plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 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
74HC4020DB74HC4020DB,118935188720118Reel 13" Q1/T1Order product
74HC4020DB74HC4020DB,112935188720112Bulk PackOrder product

Sample

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