IW4020B Просмотр технического описания (PDF) - Estek Electronics Co. Ltd

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IW4020B

Ripple-Carry Binary Counter

Estek Electronics Co. Ltd 

IW4020B

Description

The IW4020B is ripple-carry binary counter.All counter stages are master-slave flip-flops.The state of a

counteradvances one count on the negative transition of each input pulse,a high level on the R E SE T line

resets thecounter to its all zeros state.Schmitt trigger action on the input-pulse line permits unlimited rise and

fall times

Features

 Operating Voltage Range: 3.0 to 18 V

 Maximum input current of 1uA at 18 V over full package-

temperature range ;100 nA at 18 V and 25 C

 Noise margin (over full package temperature range):

1.0 V min @ 5.0 V supply

2.0 V min @ 10.0 V supply

2.5 V min @ 15.0 V supply

Logic Diagram

16

DIP - 16

16

SOP - 16

Package

Pin Assignment

10

CLOCK

11

RESET

9

Q1

7 Q4

5

Q5

4 Q6

6

Q7

13

Q8

12 Q9

14 Q10

15 Q11

1 Q12

2

Q13

3

Q14

PIN 16 = VCC

PIN 8 =

GND

Q12 1

Q13 2

Q14 3

Q6 4

Q5 5

Q7 6

Q4 7

GND 8

16

15 Q11

14 Q10

13 Q8

12 Q9

11 RESET

10 CLOCK

9 Q1

Function Table

Inputs

Clock Reset

L

Output

Output state

No change

L

Advance to

next state

X

H All Outputs

are low

X = don ' t care

BEIJING ESTEK ELECTRONICS CO.,LTD

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