HT1632 データシートの表示（PDF） - Holtek Semiconductor

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HT1632

32x8 & 24x16 LED Driver

Holtek Semiconductor 

HT1632

Functional Description

Display Memory - RAM

The static display memory, RAM, is organised into 64´4

bits or 96´4 bits and stores the displayed data. If 32 out

bits & 8 commons is selected, the RAM size is 64´4 bits.

If 24 out bits & 16 commons is selected the RAM size is

96´4 bits. The contents of the RAM are directly mapped

to the contents of the LED driver. Data in the RAM can

be accessed by the READ, WRITE, and READ-

MODIFY-WRITE commands. The following table shows

the mapping from the RAM to the LED pattern:

Out0

Out1

Out2

Out3

Out4

Out5

Out6

Out7

Out8

Out9

Out10

Out11

Out12

Out13

Out14

Out15

Out16

Out17

Out18

Out19

Out20

Out21

Out22

Out23

Out24

Out25

Out26

Out27

Out28

Out29

Out30

Out31

Com7

D3

Com6

D2

Com5

D1

Com4

D0

Addr.

01H

03H

05H

07H

09H

0BH

0DH

0FH

11H

13H

15H

17H

19H

1BH

1DH

1FH

21H

23H

25H

27H

29H

2BH

2DH

2FH

31H

33H

35H

37H

39H

3BH

3DH

3FH

Data

Com3

D3

Com2

D2

Com1

D1

Com0

D0

Addr.

00H

02H

04H

06H

08H

0AH

0CH

0EH

10H

12H

14H

16H

18H

1AH

1CH

1EH

20H

22H

24H

26H

28H

2AH

2CH

2EH

30H

32H

34H

36H

38H

3AH

3CH

3EH

Data

32 Outbits & 8 Common for 64´4 Display RAM

Rev. 1.00

5

October 2, 2007

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