HCS164MS

FN2465 Rev 2.00

Page 2 of 9

September 1995

Functional Diagram

D1

D2

Q0

Q1

Q2

Q3

Q4

Q5

Q6

Q7

CL

D

MR

CP

9

8

1

2

R

Q

3

4

5

6

10

11

12

13

CL

D

R

Q

CL

D

R

Q

CL

D

R

Q

CL

D

R

Q

CL

D

R

Q

CL

D

R

Q

CL

D

R

Q

TRUTH TABLE

OPERATING MODE

INPUTS

OUTPUTS

MR

CP

DS1

DS2

Q0

Q1-Q7

Reset (Clear)

L

X

X

X

L

L-L

Shift

H

l

l

L

q0 -q6

H

l

h

L

q0 - q6

H

h

l

L

q0 - q6

H

h

h

H

q0 - q6

H = High Voltage Level

h = HIGH voltage level one setup time prior to the LOW-to-HIGH clock transistion

L = Low VoltageLevel

l = LOW voltage level one setup time prior to the LOW-to-HIGH clock transition.

= LOW-to-HIGH clock transition

q = Lower case letters indicate the state of the referenced input (or output) one setup time prior to the LOW-to-HIGH clock transition