HCS109MS

FN2466 Rev 2.00

Page 2 of 9

September 1995

Functional Diagram

F/F

CL

Q

J

CP

GND

5 (11)

2 (14)

3 (13)

4 (12)

1 (15)

16

8

6 (10)

7 (9)

Q

CL R

K

J

S

Q

Q

R

K

S

VCC

TRUTH TABLE

INPUTS

OUTPUTS

S

R

CP

J

K

QQ

L

H

XXX

H

L

H

L

XXX

L

H

L

L

X

X

X

H*

H*

H

H

LLL

H

H

H

H

L

Toggle

H

H

L

H

No Change

HH

HHH

L

H

H

L

X

X

No Change

*Unpredictable and unstable condition if both S and R go high simultaneously

L = Logic Level Low

H = Logic Level High

= Transition from Low to High Level