HT46C23 datasheet(2/48 Pages) HOLTEK

2 / 48 page

Block Diagram

Pin Assignment

HT46R23/HT46C23

Rev. 1.60

May 3, 2004

P A 5 / I N T

O S C 2

O S C 1

R E S

V D D

M U X

P A C

P A

P o r t A

W D T

P D C

P D

P o r t D

P D 0 / P W M 0 ~ P D 1 / P W M 1

P o r t B

V S S

P A 4

P r o g r a m

R O M

P r o g r a m

C o u n t e r

I n t e r r u p t

C i r c u i t

S T A C K

I N T C

D A T A

M e m o r y

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

S T A T U S

A L U

S h i f t e r

T i m i n g

G e n e r a t o r

A C C

R C O S C

W D T

P r e s c a l e r

M P

P B

P B C

P B 0 / A N 0 ~ P B 7 / A N 7

P A 0 ~ P A 2

P A 3 / P F D

P A 4 / T M R

P A 5 / I N T

P A 6 / S D A

P A 7 / S C L

P W M

8 - C h a n n e l

A / D C o n v e r t e r

P A 3 / P F D

L V R

P A 3 , P A 5

P C

P C C

P C 0 ~ P C 4

I 2 C B u s

S l a v e M o d e

P o r t C

f S Y S / 4

P A 4 / T M R

T M R

T M R C

P r e s c a l e r

f S Y S

H T 4 6 R 2 3 / H T 4 6 C 2 3

2 8 S K D I P - A / S O P - A

2 8

2 7

2 6

2 5

2 4

2 3

2 2

2 1

2 0

1 9

1 8

1 7

1 6

1 5

1 0

1 1

1 2

1 3

1 4

P B 5 / A N 5

P B 4 / A N 4

P A 3 / P F D

P A 2

P A 1

P A 0

P B 3 / A N 3

P B 2 / A N 2

P B 1 / A N 1

P B 0 / A N 0

V S S

P C 0

P C 1

P C 2

P B 6 / A N 6

P B 7 / A N 7

P A 4 / T M R

P A 5 / I N T

P A 6 / S D A

P A 7 / S C L

O S C 2

O S C 1

V D D

R E S

P D 1 / P W M 1

P D 0 / P W M 0

P C 4

P C 3

P B 5 / A N 5

P B 4 / A N 4

P A 3 / P F D

P A 2

P A 1

P A 0

P B 3 / A N 3

P B 2 / A N 2

P B 1 / A N 1

P B 0 / A N 0

V S S

P C 0

P B 6 / A N 6

P B 7 / A N 7

P A 4 / T M R

P A 5 / I N T

P A 6 / S D A

P A 7 / S C L

O S C 2

O S C 1

V D D

R E S

P D 0 / P W M 0

P C 1

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 T 4 6 R 2 3 / H T 4 6 C 2 3

2 4 S K D I P - A / S O P - A

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