HT48RA3_07 datasheet(2/38 Pages) HOLTEK

2 / 38 page

Block Diagram

Pin Assignment

HT48RA3/HT48CA3

Rev. 1.30

October 12, 2007

I N T / P F 0

O S C 2

O S C 1

R E S

V D D

M U X

T M R 0

T M R 0 C

T M R 0

V S S

P r e s c a l e r

f S Y 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

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

M P

W D T S

W D T

W D T O S C

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

E N / D I S

P F C

P F

P O R T F

P F 0

P B C

P O R T B

P B 0 ~ P B 7

P F D

P B

P A C

P O R T A

P A 0 ~ P A 7

P A

P C

P O R T C

P C 0 ~ P C 5

P C C

T M R 1 C

T M R 1

f S Y S / 4

B P

f S Y S / 4

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 6

P B 7

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

P C 5 / T M R 1

P C 4

P C 3

P C 2

P B 5

P B 4

P A 3

P A 2

P A 1

P A 0

P B 3

P B 2

P B 1

P B 0 / P F D

V S S

P F 0 / I N T

P C 0 / T M R 0

P C 1

H T 4 8 R A 3 / H T 4 8 C A 3

2 8 S O P - A / S S O P - A

HT48RA3 데이터시트(PDF) 2 Page - Holtek Semiconductor Inc

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