HT1647A 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT1647A Datasheet PDF : 19 Pages
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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. 1.40
10
April 29, 2011
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