74LV4020 Просмотр технического описания (PDF) - NXP Semiconductors.

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производитель

74LV4020

14-stage binary ripple counter

NXP Semiconductors. 

Philips Semiconductors

74LV4020

14-stage binary ripple counter

8. Functional description

8.1 Function table

Table 4: Function table [1]

Input

CP

MR

↑

L

↓

L

X

H

[1] H = HIGH voltage level;

L = LOW voltage level;

X = don’t care;

↑ = LOW-to-HIGH clock transition;

↓ = HIGH-to-LOW clock transition.

8.1.1 Timing diagram

Output

Q0, Q3 to Q13

no change

count

L

CP input

MR input

Q0

Q3

Q4

Q5

Q6

Q7

Q8

Q9

Q10

Q11

Q12

Q13

1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384

001aad726

Fig 6. Timing diagram

74LV4020_1

Product data sheet

Rev. 01 — 29 November 2005

© Koninklijke Philips Electronics N.V. 2005. All rights reserved.

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