HT9302G datasheet(2/27 Pages) HOLTEK

2 / 27 page

Block Diagram

Pin Assignment

HT9302x normal version

HT9302G simple version

HT9302 Series

Rev. 1.20

September 30, 2002

C 1

R 1

P O

H K S

H D I

K e y

C o l u m n

. S M

K e y

. u n c t i o n

E n c o d e r

C o n t r o l

W R M

C o u n t e r

A D D R L

K e y R o w

S R A M

D e b o u n c e

D i v i d e r

C l o c k

G e n e r a t o r

M / B

. l a s h

T i m e r

C h e c k

T o n e

E n c o d e r

C o n v e r t e r

T o n e

O u t

P u l s e

O u t

D T M .

H . I

M O D E

D O U T

C L O C K

X M U T E

C 4

R 4

X 1

X 2

K e y t o n e

G e n e r a t o r

C l o c k

C o n t r o l

L O C K

M o d e I n

H D / H .

H D O

H . O

R 4

R 3

R 2

R 1

M O D E

D T M .

P O

H K S

1 6

1 5

1 4

1 3

1 2

1 1

1 0

C 1

C 2

C 3

X 1

X 2

X M U T E

V S S

V D D

H T 9 3 0 2 G

1 6 D I P - A

H D I

C 1

C 2

C 3

C 4

L O C K

X 1

X 2

X M U T E

V S S

H . I

D O U T

C 1

C 2

C 3

C 4

L O C K

X 1

X 2

X M U T E

V S S

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 1

1 0

R 4

R 3

R 2

R 1

M O D E

D T M .

P O

H K S

V D D

H D I

C 1

C 2

C 3

C 4

L O C K

X 1

X 2

X M U T E

V S S

H . I

2 2

2 1

2 0

1 9

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 0

1 1

H D O

R 4

R 3

R 2

R 1

M O D E

D T M .

P O

H K S

V D D

H . O

C 1

C 2

C 3

C 4

L O C K

X 1

X 2

X M U T E

V S S

D O U T

2 0

1 9

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 1

1 0

R 4

R 3

R 2

R 1

M O D E

D T M .

P O

H K S

V D D

C L O C K

2 4

2 3

2 2

2 1

2 0

1 9

1 8

1 7

1 6

1 5

1 4

1 3

1 0

1 1

1 2

H D O

R 4

R 3

R 2

R 1

M O D E

D T M .

P O

H K S

V D D

H . O

C L O C K

H T 9 3 0 2 D

2 4 S K D I P - A

H T 9 3 0 2 C

2 0 D I P - A

H T 9 3 0 2 B

2 2 S K D I P - A

H T 9 3 0 2 A

1 8 D I P - A

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