HT1647A(2009) Ver la hoja de datos (PDF) - Holtek Semiconductor

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HT1647A
(Rev.:2009)

64x16 LCD Controller for I/O MCU

Holtek Semiconductor 

PATENTED

HT1647A

Name

FRAME 170Hz

FRAME 89Hz

Command Code

X100-0001-1000-XXXX

X100-0001-1101-XXXX

Function

Select 170Hz frame frequency and active segment signal

width can be divided into 13 sections

Select 89Hz frame frequency and active segment signal width

can be divided into 24 sections

Frame Frequency Selection Command Code

Relationship Table between PWM Data and Gray Scale

V a lu e

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

5 b its P W M

B4 B3 B2

000

000

000

000

001

001

001

001

010

010

010

010

011

011

011

011

100

100

100

100

101

101

101

101

110

d a ta

B1 B0

00

01

10

11

00

01

10

11

00

01

10

11

00

01

10

11

00

01

10

11

00

01

10

11

00

(O

PW

Nw

M

id th )

G

ra y

S c a le

0 (0 /2 3 )

1 /2 3

2 /2 3

3 /2 3

4 /2 3

5 /2 3

6 /2 3

7 /2 3

8 /2 3

9 /2 3

1 0 /2 3

1 1 /2 3

1 2 /2 3

1 3 /2 3

1 4 /2 3

1 5 /2 3

1 6 /2 3

1 7 /2 3

1 8 /2 3

1 9 /2 3

2 0 /2 3

2 1 /2 3

2 2 /2 3

1 (2 3 /2 3 )

1 (2 4 /2 3 )

31 1 1 1 1 1

1 (3 1 /2 3 )

Table 1: FRAME 89Hz Mode

V a lu e

0

1

2

3

4

5

6

7

8

9

10

11

12

13

5 b its P W M

B4 B3 B2

000

000

000

000

001

001

001

001

010

010

010

010

011

011

d a ta

B1 B0

00

01

10

11

00

01

10

11

00

01

10

11

00

01

(O

PW

Nw

M

id th )

G

ra y

S c a le

0 (0 /1 2 )

1 /1 2

2 /1 2

3 /1 2

4 /1 2

5 /1 2

6 /1 2

7 /1 2

8 /1 2

9 /1 2

1 0 /1 2

1 1 /1 2

1 (1 2 /1 2 )

1 (1 3 /1 2 )

31 1 1 1 1 1

1 (3 1 /1 2 )

Table 2: FRAME 170Hz Mode

Note: The varied PWM data displays various gray

scale in TN-type, STN-type LCDs.

The color display derives from ECB-type LCD¢s

specification.

Name

GRS LEVEL 1

GRS LEVEL 2

GRS LEVEL 3

GRS LEVEL 4

Command Code

X100-001 B4-B3 B2 B1 B0-XXXX

X100-010 B4-B3 B2 B1 B0-XXXX

X100-011 B4-B3 B2 B1 B0-XXXX

X100-100 B4-B3 B2 B1 B0-XXXX

Function

Set PWM data in gray scale level 1

Set PWM data in gray scale level 2

Set PWM data in gray scale level 3

Set PWM data in gray scale level 4

Four Kinds of Gray Scale Level Command Code

Rev. 1.20

10

June 22, 2009

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