HEF4020B 查看數據表（PDF） - NXP Semiconductors.

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产品描述 (功能)

生产厂家

HEF4020B

14-stage binary counter

NXP Semiconductors. 

NXP Semiconductors

HEF4020B

14-stage binary counter

6. Pinning information

6.1 Pinning

HEF4020B

Fig 5. Pin configuration

Q11 1

Q12 2

Q13 3

Q5 4

Q4 5

Q6 6

Q3 7

VSS 8

16 VDD

15 Q10

14 Q9

13 Q7

12 Q8

11 MR

10 CP

9 Q0

001aaj101

6.2 Pin description

Table 2. Pin description

Symbol

Pin

Q3 to Q13

7, 5, 4, 6, 13, 12, 14, 15, 1, 2, 3

VSS

8

Q0

9

CP

10

MR

11

VDD

16

7. Functional description

Description

parallel output (Q3 to Q13)

ground supply voltage

parallel output

clock input (HIGH-to-LOW edge triggered)

master reset input (active HIGH)

supply voltage

Table 3. Functional table[1]

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; ↑ = positive-going transition; ↓ = negative-going transition.

HEF4020B_4

Product data sheet

Rev. 04 — 4 December 2008

© NXP B.V. 2008. All rights reserved.

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