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參數資料
| 型號： | UPD16431A |
| 廠商： | NEC Corp. |
| 英文描述： | 1/2, 1/3, 1/4-DUTY LCD CONTROLLER/DRIVER |
| 中文描述： | 1 / 2，1 / 3，1/4-DUTY LCD控制器/驅動 |
| 文件頁數： | 9/34頁 |
| 文件大?。?/td> | 179K |
| 代理商： | UPD16431A |
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μ
PD16431A
9
COMMAND
A command sets a display mode and a status.
The first 1 byte input after the STB pin has fallen is regarded as a command.
If the STB pin is made low while a command/data is transferred, serial communication is initialized, and
the command/data being transferred is made invalid (the command/data that has been already transferred
remains valid, however).
(1) Display setting command
This command initializes the
μ
PD16431A and sets a duty cycle, frame frequency, drive voltage supply
method, test mode, and whether the
μ
PD16431A operates as the master or a slave.
When this command is executed, display is forcibly turned off and key scanning is stopped. To resume
the display, the normal operation of the “status command” must be executed. Note, however, that nothing
is executed if the same mode is selected.
b0
MSB
LSB
b1
b2
b3
b4
b5
b6
0
Sets duty.
00: 1/4 duty, 1/3 bias
01: 1/3 duty, 1/3 bias
10: 1/2 duty, 1/2 bias
11: 1/2 duty, 1/2 bias
Sets frame frequency.
00: (f
OSC
/128)
×
n
01: (f
OSC
/256)
×
n
10: (f
OSC
/512)
×
n
11: (f
OSC
/1024)
×
n
n= duty (1/2, 1/3, 1/4)
Sets drive voltage supply method.
0: Internal
1: External
Sets master or slave.
0: Master
1: Slave
Sets test mode.
0: Normal operation
1: Test mode
0
Values when power is applied
0
0
0
0
0
0
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相關代理商/技術參數 |
參數描述 |
|---|---|
| UPD16431AGC-7ET | 制造商:NEC 制造商全稱:NEC 功能描述:1/2, 1/3, 1/4-DUTY LCD CONTROLLER/DRIVER |
| UPD16431AGC-7ET (A) | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD16432B | 制造商:NEC 制造商全稱:NEC 功能描述:1/8, 1/15 DUTY LCD CONTROLLER/DRIVER |
| UPD16432BGC-001-9EU | 制造商:NEC 制造商全稱:NEC 功能描述:1/8, 1/15 DUTY LCD CONTROLLER/DRIVER |
| UPD16432BGC-001-9EU-A | 制造商:Renesas Electronics Corporation 功能描述: |
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