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NJU6475B Datasheet(PDF) 6 Page - New Japan Radio

Part No. NJU6475B
Description  12-Character 4-Line Dot Matrix Low Power LCD Controller Driver with key Scan Function
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Maker  NJRC [New Japan Radio]
Homepage  http://www.njr.co.jp/index_e.htm
Logo NJRC - New Japan Radio

NJU6475B Datasheet(HTML) 6 Page - New Japan Radio

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NJU6475B
TERMINAL DESCRIPTION
PAD No.
Symbol
I/O
F u n c t i o n
11,5
V ,V
-
Power Source : V =+3V
GND : V =0V
DD
SS
DD
SS
4
V
-
LCD driving voltage
5
2,3
OSC ,
I/O
System clock terminal
1
OSC
Oscillation C and R are incorporated. (Normally Open)
2
For external clock operation, the clock should be input on OSC .
1
17
P/S
I
Serial input select terminal (fixed to "L")
Register selection signal input terminal
18
RS
I
"0" instruction register. (Writing)
"1" Data register. (Writing, Reading)
19
R/W
I
Read(R) / Write(W) selection signal input terminal
20
E/SCL
I
Serial clock input terminal
23
DB /CS
I
Chip select signal
7
24
DB /SIO
I/O
Data input terminal
(3-state data bus.)
6
25 - 30
DB - DB
I
I/O port output terminal
05
22
REQ
O
This terminal normally output "L".
When confirm a key action, REQ terminal output puls.
21
LCD/KEY
I
Fix to "H" Level
35 - 42
S -S
O
Key scan signal data output terminal
o7
Open Drain Output
31 - 34
K - K
I
Key scan data input terminal
03
In case of non use, fix to "H".
158 - 151
COM - COM
O
Common signal output terminal
132
65 - 72
150 - 143
73 - 80
162 - 159
COMM -
O
Icon common display signal output terminal
1
4
COMM
163
COMS
O
Static driving common signal output terminal
1
When power down mode V
or V
levels are output.
DD
SS
82 - 141
SEG - SEG
O
Segment signal output terminal
160
81,142
SEGM ,SEGM
O
Icon segment driving signal output terminal
12


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