ML9209 datasheet(19/29 Pages) LAPIS

tên linh kiện	ML9209

Giải thích chi tiết về linh kiện	Vacuum fluorescent display tube controller driver

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nhà sản xuất	LAPIS [LAPIS Semiconductor Co., Ltd.]

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FEDL9209-01

LAPIS Semiconductor

ML9209-xx

19/29

5. “Display duty set” command

(Writes display duty value into the duty cycle register.)

For display duty, brightness can be adjusted in 16 stages using 4-bit data.

When power is turned on or when the

RESET signal is input, the duty cycle register value is “0”. Always

execute this command before turning the display on, then set a desired duty value.

[Command format]

D0 D1 D2 D3 1

B0 B1 B2 B3 B4 B5 B6 B7

1st byte

LSB

MSB

: setup and duty value in display duty specification mode are

specified.

D0 (LSB) to D3 (MSB) :

Display duty data (4 bits: 16 stages worth)

[Relation between setup data and controlled COM duty]

HEX

COM duty

HEX

COM duty

0/16

8/16

1/16

9/16

2/16

10/16

3/16

11/16

4/16

12/16

5/16

13/16

6/16

14/16

7/16

15/16

* The state when power is turned on or when the RESET signal is input.

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