HT45R34 datasheet(2/41 Pages) HOLTEK

2 / 41 page

Block Diagram

Pin Assignment

HT45R34

Rev. 1.20

October 15, 2007

P A 0 / I N T 0

P A 1 / I N T 1

O S C 2

O S C 1

R E S

V D D

P A C

P A

P O R T A

W D T S

W D T

V S S

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 0

S T A C K 1

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

R C O S C

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

M P

P A 2 / T M R

T M R

T M R C

P r e s c a l e r

A C C

T i m e r A

T i m e r B

R C O s c i l l a t i o n O u t p u t

A n a l o g

S w i t c h

R C 1 ~ R C 1 2

R C O U T

R C

O s c i l l a t i o n

I N

R R E F

C R E F

S y s t e m C l o c k

S y s t e m C l o c k / 4

P A 0 / I N T 0

P A 1 / I N T 1

P A 2 / T M R

P A 3 ~ P A 7

M U X

S y s t e m C l o c k / 4

S y s t e m C l o c k

P A 3

P A 2 / T M R

P A 1 / I N T 1

P A 0 / I N T 0

V S S

C R E F

R R E F

R C O U T / I N

R C 1

R C 2

R C 3

R C 4

P A 4

P A 5

P A 6

P A 7

O S C 2

O S C 1

V D D

R E S

R C 1 2

R C 1 1

R C 1 0

R C 9

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 5 R 3 4

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

2 0

1 9

1 8

1 7

1 6

1 5

1 4

1 3

1 2

1 1

1 0

H T 4 5 R 3 4

2 0 D I P - A / S O P - A

P A 3

P A 2 / T M R

P A 1 / I N T 1

P A 0 / I N T 0

V S S

C R E F

R R E F

R C O U T / I N

R C 1

R C 2

P A 4

P A 5

P A 6

P A 7

O S C 2

O S C 1

V D D

R E S

R C 1 2

R C 1 1

HT45R34 数据表(PDF) 2 Page - Holtek Semiconductor Inc

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HT45R34 数据表(PDF) 2 Page - Holtek Semiconductor Inc

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