UPD16430AGF-3B9 查看數據表（PDF） - NEC => Renesas Technology

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UPD16430AGF-3B9

1/2, 1/3, 1/4 DUTY LCD CONTROLLER/DRIVER

NEC => Renesas Technology 

µPD16430A

Display RAM Addresses and Display Dots

Display RAM temporarily stores display data that has been sent serially.

Display RAM addresses are allocated in units of 8 bits (group address), and it is possible to store the display data

of a group address transferred at one time.

The relations between group addresses and display dots for the three display modes are shown below.

(1) 1/2 duty

COM1 1 3 5 7

COM2 0 2 4 6

Group

0

1

2

3

4

9

10

11

12

13

14

address

(2) 1/3 duty

COM2 2 5 7

COM1 1 4 6

COM0 0 3

Group 0

1

address

2

3

4

5

The shaded parts are always 1.

(3) 1/4 duty

12 13

14 15 16 17 18 19

COM3 3 7

COM2 2 6

COM1 1 5

COM0 0 4

Group 0 1 2 3 4 5 6 7 8 9

address

18 19 20 21 22 23 24 25 26 27 28 29

Remark During auto incrementing, incrementing past the last group address of each duty (for example group

address 14 in the case of 1/2 duty) brings the counter back to “0.”

7

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