HT1622 datasheet(2/17 Pages) HOLTEK

2 / 17 page

Block Diagram

Pin Assignment

HT1622

Rev. 2.00

June 9, 2009

PATENTED

1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2

2 3

2 4

2 5

2 6

2 7

2 8

2 9

3 0

3 1

3 2

3 3

3 4

3 5

3 6

3 7

3 8

3 9

4 0

4 1

4 2

4 3

4 4

H T 1 6 2 2

4 4 Q F P - A

1 0

1 1

1 2

1 3

1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2

3 4

3 5

3 6

3 7

3 8

3 9

4 8

4 9

5 0

5 1

5 2

2 3 2 4 2 5 2 6

2 7

2 8

2 9

3 0

3 1

3 2

3 3

H T 1 6 2 2

5 2 Q F P - A

4 0

4 1

4 2

4 3

4 4

4 5

4 6

4 7

C S

R D

W R

D A T A

V S S

O S C I

V D D

V L C D

I R Q

T 1

T 2

T 3

C O M 0

S E G 1 8

S E G 1 7

S E G 1 6

S E G 1 5

S E G 1 4

S E G 1 3

S E G 1 2

S E G 1 1

S E G 1 0

S E G 9

S E G 8

S E G 7

S E G 6

C S

N C

R D

W R

D A T A

V S S

O S C I

V D D

V L C D

I R Q

B Z

N C

B Z

T 1

T 2

T 3

S E G 1 9

S E G 1 8

S E G 1 7

S E G 1 6

S E G 1 5

S E G 1 4

S E G 1 3

S E G 1 2

S E G 1 1

S E G 1 0

S E G 9

S E G 8

S E G 7

N C

C S

R D

W R

D A T A

V S S

O S C I

V D D

V L C D

I R Q

T 1

T 2

S E G 1 8

S E G 1 7

S E G 1 6

S E G 1 5

S E G 1 4

S E G 1 3

S E G 1 2

S E G 1 1

S E G 1 0

S E G 9

S E G 8

S E G 7

S E G 6

S E G 1 2

S E G 1 1

S E G 1 0

S E G 9

S E G 8

S E G 7

S E G 6

S E G 5

S E G 4

S E G 3

S E G 2

1 0

1 1

H T 1 6 2 2

6 4 L Q F P - A

1 0

1 1

1 2

1 3

2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8

4 3

4 4

4 5

4 6

4 7

4 8

6 0

6 1

6 2

6 3

6 4

2 9 3 0 3 1 3 2

3 6

3 7

3 8

3 9

4 0

4 1

4 2

5 2

5 3

5 4

5 5

5 6

5 7

5 8

5 9

1 4

1 5

1 6

3 3

3 4

3 5

1 7 1 8 1 9

5 2

5 3

5 4

W a t c h d o g T i m e r

a n d

T i m e B a s e G e n e r a t o r

D i s p l a y R A M

L C D D r i v e r /

B i a s C i r c u i t

C o n t r o l

a n d

T i m i n g

C i r c u i t

D A T A

W R

O S C I

C S

R D

C O M 0

C O M 7

S E G 0

S E G 3 1

T o n e F r e q u e n c y

G e n e r a t o r

B Z

I R Q

V S S

V D D

V L C D

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