NJU6625 New Japan Radio Co.,Ltd, NJU6625 Datasheet - Page 12

• Manufacturer Part Number: NJU6625
• Description: Nju6625 12character 1-line Dot Matrix Lcd Controller Driver With Smooth Scroll Function
• Manufacturer: New Japan Radio Co.,Ltd

NJU6625
- 12 -
Note) the terminal S
Read out data
Read out data
Example 2. The key roll over input (1)
Example 3. The key roll over input (2)
In case of Example 3, when the switch connecting to K
keyscan circuit. But in case of Example 3, the key roll over input in the horizontal line can not be
accepted, because Key data with low priority is invalid.
more times the comparison of data, and the judgment is recommended.
Key data taking priority level
and bit (D
can be read according to the key data taking priority level, and the key connected with the S
be read.
The key roll over input is the vertical line as shown below (Example 2) can be accepted with the
The key roll over input must be taken care for key data judgments. The method of reading data, two or
done when the load capacity of the connected panel is large (output wave form is dull).
evaluate it with a real machine.
The pull-up resistor changes depending on the load capacity of the panel, therefore it is necessary to
S
7
>S
6
>S
2
) corresponding to S
5
D
D
>S
O
1
Note) In case of can not read out correct.
1
15
15
~S
4
>S
K
K
7
3
3
is a terminal SEG and using combined. Therefore the key taking cannot be accurately
D
D
3
0
0
>S
K
14
K
14
Prelimina ry
2
2
2
>S
K
K
D
D
1
1
1
1
13
13
1
K
K
>S
0
0
0
D
D
S
0
S
0
4
12
12
NJU6625
NJU6625
7
7
go to “1” but another bits go to “0”. The key connected with the S
S
S
D
D
6
6
0
0
11
11
S
S
5
5
D
D
S
S
1
1
10
10
4
4
S
S
3
3
D
D
1
1
S
S
9
9
2
2
S
S
D
D
1
1
1
1
8
8
2
S
S
and S
0
0
D
D
1
0
7
7
4
is pressed, bit (D
D
D
K
K
1
1
ON
OFF
6
ON
OFF
6
3
3
- K
- K
0
0
D
D
0
0
5
5
D
D
0
0
4
4
6
D
D
) corresponding to K
0
0
3
3
D
D
0
1
2
2
2
S
S
line cannot
Ver.2008-03-21
D
7
D
7
1
0
- S
- S
1
1
0
0
4
D
D
0
0
line
0
0
2