HTG2190 datasheet(2/50 Pages) HOLTEK

2 / 50 page

Block Diagram

HTG2190

Rev. 1.20

July 5, 2002

P r o g r a m

C o u n t e r

P r o g r a m

R O M

I n s t r u c t i o n

R e g i s t e r

I n s t r u c t i o n

D e c o d e r

T i m i n g

G e n e r a t i o n

O S C O

O S C I

R E S

V D D

V S S

I n t e r r u p t

C i r c u i t

I N T C

M P 0

M P 1

M U X

D A T A

M e m o r y

A L U

S h i f t e r

S T A T U S

A C C

T M R 1

T M R 1 C

S Y S C L K / 4

P B 6 / T M R 1

W D T S

W D T P r e s c a l e r

¸ 2 5 6

W D T R C

O S C

1 6 b i t

T M R 0

T M R 0 C

S Y S C L K / 4

P B 7 / T M R 0

1 6 b i t

P D C

P D

P O R T D

P D 0 ~ P D 7 / S E G 4 8 ~ S E G 5 5

P E C

P E

P O R T E

P E 0 ~ P E 7 / S E G 4 0 ~ S E G 4 7

S T A C K 2

S T A C K 3

S T A C K 4

S T A C K 5

S T A C K 6

S T A C K 7

P C C

P C

P O R T C

P C 0 ~ P C 7 / S E G 5 6 ~ S E G 6 3

P B C

P B

P O R T B

P B 0 , P B 2 ~ P B 7

X I N / P C 7 / S E G 6 3

X O U T / P C 6 / S E G 6 2

L C D

M e m o r y

L C D D r i v e r

C O M 0 ~ C O M 1 5

S E G 0 ~ 3 9

P E 0 ~ P E 7 / S E G 4 0 ~ S E G 4 7

P D 0 ~ P D 7 / S E G 4 8 ~ S E G 5 5

P C 0 ~ P C 5 / S E G 5 6 ~ S E G 6 1

X O U T / P C 6 / S E G 6 2

X I N / P C 7 / S E G 6 3

8 - s t a g e

P r e s c a l e r

P . D

T M R 2

I N T / S I N

P A C

P A

P O R T A

P A 0 ~ P A 7

S e r i a l

I n t e r f a c e

8 - s t a g e

P r e s c a l e r

P W M

D / A

S C L K / P B 5

I N T / S I N

S O U T / P B 4

P W M D A C 1

P W M D A C 2

T M R 3 C

T M R 3

3 2 7 6 8 H z C r y s t a l

S Y S C L K

8 - s t a g e

P r e s c a l e r

8 - s t a g e

P r e s c a l e r

T M R 2 C

S Y S C L K

P B 0 / P W M 1

P W M 2 / A U D

S T A C K 0

S T A C K 1

P W M D A C 1

P W M D A C 2

1 2 b i t s

D / A

4 b i t s

V o l u m e

c o n t r o l

R T .

S u p p l y V o l t a g e

D e t e c t i o n

S Y S C L K

HTG2190 Datasheet(PDF) 2 Page - Holtek Semiconductor Inc

HTG2190 Datasheet(HTML) 2 Page - Holtek Semiconductor Inc

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