NJU6635 New Japan Radio Co.,Ltd, NJU6635 Datasheet - Page 10

• Manufacturer Part Number: NJU6635
• Description: 16-character 2-line Dot Matrix Lcd Controller Driver
• Manufacturer: New Japan Radio Co.,Ltd

2nd line 10
1st line 00
Note) The cursor or blinks appears when the address counter (AC) selects the CG RAM.
(1-7)Timing Generator
(1-8)LCD Driver
(1-9)Cursor Blinking Control Circuit
internal circuit operation.
generated, so that they may not interfere with each other.
as flickering, in areas other than the display area.
performed completely. This latched data controls display driver to output LCD driving waveform.
appears in the digit position at the DD RAM address set in the address counter(AC).
But the displayed cursor and blink are meaningless.
If the AC stores the CG RAM address data, the cursor and blink are displayed in the meaningless
position.
The timing generator generates a timing signals for the DD RAM, CG RAM, CG ROM and other
RAM read timing for the display and internal operation timing for MPU access are separately
Therefore, when the data write to the DD RAM for example, there will be undesirable Influence, such
LCD driver consists of 16-common driver and 80-segment driver.
The 80 bits of character pattern data are shifted in the shift-register and latched when the 40 bits shift
This circuits controls cursor On/Off and cursor position character blinks.
When the address counter is (08)
1
2
01 02 03 04 05 06 07 08 09 0A
11
AC
3
12 13 14 15 16 17 18 19 1A
AC
0
4
6
AC
5
0
5
6
AC
0
4
7
AC
H
1
8
, a cursor position is shown as follows:
3
9
AC
0
2
10 11
AC
Cursor Position
0
1
AC
12
0B
1B
0
0
13
0C 0D 0E
1C 1D 1E
14
15
16
0F
1F
The cursor or blinks
Display Position
DD RAM Address
NJU6635
(Hexadecimal)