UPD16680P NEC [NEC], UPD16680P Datasheet - Page 21

• Manufacturer Part Number: UPD16680P
• Description: 1/53, 1/40 DUTY, LCD CONTROLLER/DRIVER WITH BUILT-IN RAM
• Manufacturer: NEC [NEC]

8. GROUP ADDRESSES
8.1 Dot display
goes to next address. When Y address goes to 33H, next address is 00H, too.
Remark Data of X address = 0CH : b7 to b4 are data, b3 to b0 are don't care.
Note If address incrementation is set when 1/40 duty is used, the X address value following 0CH is 00H. At the
The group addresses of dot display are assigned as follows.
To be chosen the address is increment, when X address goes to 0CH, next address is 00H. At this time, Y address
When 1/53 duty and using 1/40 duty are used, the RAM addresses and the common pins used are as follows.
1/53 duty
1/40 duty
Duty
same time the Y address is incremented by 1. The Y address value following 12H is 1AH, and the value
following 2CH is 00H.
33H
01H
32H
00H
02H
03H
X address
b7 b6 b5 b4
1AH to 2CH
00H
Y addresses
00H to 33H
00H to 12H
Use RAM
Note
01H
b3 b2 b1 b0
02H
Don’t use RAM
Y addresses
Data Sheet S12694EJ2V0DS00
2DH to 33H
13H to 19H
-
COM27 to COM45
Use common pins
COM1 to COM51
COM1 to COM19
b7 b6 b5 b4
0BH
Don’t use common
COM20 to COM26
COM46 to COM51
X
0CH
X
pins
-
X
X
PD16680
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