hd66421 Renesas Electronics Corporation., hd66421 Datasheet - Page 21

• Manufacturer Part Number: hd66421
• Description: Ram-provided 160 Channel 4-level Grey Scale Driver For Dot Matrix Graphics Lcd
• Manufacturer: Renesas Electronics Corporation.

Preliminary
Table 4 Value of a Palette Register and Grayscale Levels (GRAY= 0)
Table 5 Grayscale Levels (GRAY= 1)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
DB7,5,3,1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Value
0
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
DB6,4,2,0
Grayscale Level
0
1
0
1
10/31
11/31
12/31
13/31
14/31
15/31
16/31
17/31
18/31
19/31
20/31
21/31
22/31
23/31
24/31
25/31
26/31
27/31
28/31
29/31
30/31
2/31
3/31
1/31
4/31
5/31
6/31
7/31
8/31
9/31
0
1
Grayscale Level
21
default R13
default R14
default R15
default R12
2/3
1/3
0
1
HD66421