HT68F20 datasheet(22/210 Pages) HOLTEK

22 / 210 page

HT68F20/HT68F30/HT68F40/HT68F50/HT68F60

Rev. 1.00

November 3, 2009

Programmer Pin

MCU Pins

RES

PB0

DATA

PA0

CLK

PA2

Programmer and MCU Pins

RAM Data Memory

The Data Memory is a volatile area of 8-bit wide RAM in-

ternal memory and is the location where temporary in-

formation is stored.

Structure

Divided into two sections, the first of these is an area of

RAM, known as the Special Function Data Memory.

Here are located registers which are necessary for cor-

rect operation of the device. Many of these registers can

be read from and written to directly under program con-

trol, however, some remain protected from user manipu-

lation.

Device

Capacity

Banks

HT68F20

´8

0: 60H~7FH

1: 60H~7FH

HT68F30

´8

0: 60H~7FH

1: 60H~7FH

2: 60H~7FH

HT68F40

192

´8

0: 80H~FFH

1: 80H~BFH

HT68F50

384

´8

0: 80H~FFH

1: 80H~FFH

2: 80H~FFH

HT68F60

576

´8

0: 80H~FFH

1: 80H~FFH

2: 80H~FFH

3: 80H~FFH

4: 80H~FFH

W r i t e r _ V D D

R E S

D A T A

C L K

W r i t e r _ V S S

T o o t h e r C i r c u i t

D A T A

C L K

V S S

R E S

V D D

W r i t e r C o n n e c t o r

S i g n a l s

M C U P r o g r a m m i n g

P i n s

Note:

* may be resistor or capacitor. The resistance

of * must be greater than 1k

W or the capacitance

of * must be less than 1nF.

0 0 H

0 1 H

0 2 H

0 3 H

0 4 H

0 5 H

0 6 H

0 7 H

0 8 H

0 9 H

0 A H

0 B H

0 C H

0 D H

0 E H

0 F H

1 0 H

1 1 H

1 2 H

1 3 H

1 4 H

1 5 H

1 6 H

1 7 H

1 8 H

1 9 H

1 A H

1 B H

1 C H

1 D H

1 E H

1 F H

2 0 H

2 1 H

2 2 H

2 3 H

2 4 H

2 5 H

2 6 H

2 7 H

2 8 H

2 9 H

2 A H

2 B H

2 C H

2 D H

2 E H

2 F H

I A R 0

M P 0

I A R 1

M P 1

B P

A C C

P C L

T B L P

T B L H

T B H P

S T A T U S

S M O D

L V D C

I N T E G

W D T C

T B C

I N T C 0

I N T C 1

I N T C 2

U n u s e d

M F I 0

M F I 1

M F I 2

U n u s e d

P A W U

P A P U

P A

P A C

P B P U

P B

P B C

P C P U

P C

P C C

U n u s e d

3 0 H

3 1 H

3 2 H

3 3 H

3 4 H

3 5 H

3 6 H

3 7 H

3 8 H

3 9 H

3 A H

3 B H

3 C H

3 D H

3 E H

3 F H

4 0 H

4 1 H

4 2 H

4 3 H

4 4 H

4 5 H

4 6 H

4 7 H

4 8 H

4 9 H

4 A H

4 B H

4 C H

4 D H

4 E H

4 F H

5 0 H

5 1 H

5 2 H

5 3 H

5 4 H

5 5 H

5 6 H

5 7 H

5 8 H

5 9 H

5 A H

5 B H

5 C H

5 D H

5 E H

5 F H

U n u s e d

C P 0 C

C P 1 C

S I M C 0

S I M C 1

S I M D

S I M A / S I M C 2

T M 0 C 0

T M 0 C 1

T M 0 D L

T M 0 D H

T M 0 A L

T M 0 A H

U n u s e d

E E C

E E A

E E D

T M P C 0

U n u s e d

T M 1 C 0

T M 1 C 1

U n u s e d

T M 1 D L

T M 1 D H

T M 1 A L

T M 1 A H

U n u s e d

S C O M C

U n u s e d

B a n k 0 , 1

B a n k 0

B a n k 1

HT68F20 Special Purpose Data Memory

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