HT45F23 datasheet(9/152 Pages) HOLTEK

9 / 152 page

Block Diagram

The following block diagram illustrates the main functional blocks.

Pin Assignment

HT45F23/HT45F43

8-Bit Flash MCU with Op Amps & Comparators

Rev. 1.20

September 15, 2011

F l a s h / E E P R O M

P r o g r a m m i n g

C i r c u i t r y ( I C P )

W a t c h d o g

T i m e r

8 - b i t

R I S C

M C U

C o r e

R e s e t

C i r c u i t

I n t e r r u p t

C o n t r o l l e r

E R C / H X T

O s c i l l a t o r

A / D

C o n v e r t e r

L I R C / L X T

O s c i l l a t o r

H I R C

O s c i l l a t o r

E E P R O M

D a t a

M e m o r y

F l a s h

P r o g r a m

M e m o r y

R A M

D a t a

M e m o r y

I / O

S I M

T i m e r s

L o w

V o l t a g e

R e s e t

L o w

V o l t a g e

D e t e c t

C o m p a r a t o r s

O P A s

T i m e

B a s e

P F D / B u z z e r

D r i v e r

L D O

P W M

G e n e r a t o r

D / A

C o n v e r t e r

L C D

D r i v e r

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

P C 6 / P W M 1 / C 2 P / S C O M 3

P C 5 / P W M 0 / C 1 N / S C O M 2

P C 4 / V R E F / V C A P / S C O M 1

P A 0 / C N P / S C O M 0

P C 3 / X T 2

P C 2 / X T 1

P C 1 / A N 5 / O S C 2

P C 0 / A N 4 / O S C 1

P B 6 / A N 3 / R E S

P B 5 / A N 2 / P I N T

P B 4 / A N 1 / A U D / P C L K

P B 3 / A N 0 / S C S

P A 1 / C 1 O U T / T C 0

V D D

V S S

P A 2 / A 1 P / C 2 O U T

P A 3 / A 1 N / I N T 0

P A 4 / A 1 E / T C 1

P A 5 / A 2 P / P F D

P A 6 / A 2 N / B Z

P A 7 / A 2 E / B Z

P B 0 / S D O / I N T 1

P B 1 / S D I / S D A

P B 2 / S C K / S C L

H T 4 5 F 2 3 / H T 4 5 F 4 3

2 4 S 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

P A 1 / C 1 O U T / T C 0

P A 0 / C N P / S C O M 0

P C 3 / X T 2

P C 2 / X T 1

P C 1 / A N 5 / O S C 2

P C 0 / A N 4 / O S C 1

P B 6 / A N 3 / R E S

P B 4 / A N 1 / A U D / P C L K

P B 3 / A N 0 / S C S

P B 2 / S C K / S C L

V D D

V S S

P A 2 / A 1 P / C 2 O U T

P A 3 / A 1 N / I N T 0

P A 4 / A 1 E / T C 1

P A 5 / A 2 P / P F D

P A 6 / A 2 N / B Z

P A 7 / A 2 E / B Z

P B 0 / S D O / I N T 1

P B 1 / S D I / S D A

H T 4 5 F 2 3 / H T 4 5 F 4 3

2 0 S S O P - A

H T 4 5 F 2 3 / H T 4 5 F 4 3

1 6 N S O P - A

1 6

1 5

1 4

1 3

1 2

1 1

1 0

V D D

P A 1 / C 1 O U T / T C 0

P A 0 / C N P / S C O M 0

P C 3 / X T 2

P C 2 / X T 1

P C 1 / A N 5 / O S C 2

P C 0 / A N 4 / O S C 1

P B 6 / A N 3 / R E S

V S S

P A 2 / A 1 P / C 2 O U T

P A 3 / A 1 N / I N T 0

P A 4 / A 1 E / T C 1

P A 5 / A 2 P / P F D

P A 6 / A 2 N / B Z

P A 7 / A 2 E / B Z

P B 3 / A N 0 / S C S

HT45F23 Datasheet(PDF) 9 Page - Holtek Semiconductor Inc

HT45F23 Datasheet(HTML) 9 Page - Holtek Semiconductor Inc

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