TC74VHC165F/FN/FT/FK

2007-10-01

2

Pin Assignment

IEC Logic Symbol

Truth Table

Inputs

Internal

Outputs

Outputs

SHIFT/

LOAD

CK

INH

CK

SERIAL

IN

PARALLEL

A······H

QA

QB

QH

H

Q

L

X

X

X

a······h

a

b

h

h

H

L

H

X

H

n

G

Q

H

L

L

X

L

n

G

Q

H

L

H

X

H

n

G

Q

H

L

L

X

L

n

G

Q

H

X

H

X

X

No Change

H

H

X

X

X

No Change

X: Don’t care

a······h: The level of steady state input voltage at inputs A through H respectively

16

D

C

15

14

13

12

11

10

1

2

3

4

5

6

7

F

G

H

H

Q

GND

B

8

QH

9

A

SI

CK

E

L

S/

CK INH

CK INH (15)

(1)

(10)

(12)

(11)

2D

B

A

(14)

(13)

(3)

D

C

F

E

H

G

(5)

(4)

(6)

(9)

QH

(2)

CK

1D

1D

1D

(7)

SI

SRG 8

C1 [LOAD]

C2/

H

Q

L

S/