Data Sheet

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Nexperia B.V. 2017. All rights reserved
74HC_HCT4020 All information provided in this document is subject to legal disclaimers. .
Product data sheet Rev. 6 — 3 February 2016 4 of 19
Nexperia
74HC4020; 74HCT4020
14-stage binary ripple counter
7. Functional description
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care;  = LOW-to-HIGH clock transition;  = HIGH-to-LOW clock transition.
7.1 Timing diagram
Table 3. Function table
Input Output
CP MR Q0, Q3 to Q13
 L no change
 L count
XHL
Fig 7. Timing diagram
DDO
  

        
&3LQSXW
05LQSXW
4
4
4
4
4
4
4
4
4
4
 
4
4