74HC4020D 查看數據表（PDF） - NXP Semiconductors.
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74HC4020D Datasheet PDF : 19 Pages
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Nexperia
74HC4020; 74HCT4020
14-stage binary ripple counter
7. Functional description
Table 3. Function table
Input
CP
MR
L
L
X
H
Output
Q0, Q3 to Q13
no change
count
L
[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
&3LQSXW
05LQSXW
4
4
4
4
4
4
4
4
4
4
4
4
Fig 7. Timing diagram
DDO
74HC_HCT4020
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 3 February 2016
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4 of 19
© Nexperia B.V. 2017. All rights reserved
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