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參數(shù)資料
| 型號： | HT16274 |
| 英文描述： | LCD Display Driver |
| 中文描述： | 液晶顯示驅(qū)動程序 |
| 文件頁數(shù)： | 12/15頁 |
| 文件大?。?/td> | 144K |
| 代理商： | HT16274 |
Application Circuits
Note:
The connection of IRQ and RD pin can be selected depending on the requirement of the MCU.
The voltage applied to V
LCD
pin must be lower than V
DD
.
Adjust VR to fit LCD display, at V
DD
=5V, V
LCD
=4V, VR=15k
20%.
Adjust R (external Pull-high resistance) to fit user s time base clock.
Instruction Set Summary
Name
ID
Command Code
D/C
Function
Def.
READ
1 1 0
A6A5A4A3A2A1A0D0D1D2D3
D
Read data from the RAM
WRITE
1 0 1
A6A5A4A3A2A1A0D0D1D2D3
D
Write data to the RAM
READ-MODIFY-
WRITE
1 0 1
A6A5A4A3A2A1A0D0D1D2D3
D
Read and Write data to the RAM
SYS DIS
1 0 0
0000-0000-X
C
Turn off both system oscillator and LCD bias
generator
Yes
SYS EN
1 0 0
0000-0001-X
C
Turn on system oscillator
LCD OFF
1 0 0
0000-0010-X
C
Turn off LCD display
Yes
LCD ON
1 0 0
0000-0011-X
C
Turn on LCD display
TIMER DIS
1 0 0
0000-0100-X
C
Disable time base output
Yes
WDT DIS
1 0 0
0000-0101-X
C
Disable WDT time-out flag output
Yes
TIMER EN
1 0 0
0000-0110-X
C
Enable time base output
WDT EN
1 0 0
0000-0111-X
C
Enable WDT time-out flag output
TONE OFF
1 0 0
0000-1000-X
C
Turn off tone outputs
Yes
CLR TIMER
1 0 0
0000-1101-X
C
Clearthecontentsofthetimebasegenerator
CLR WDT
1 0 0
0000-1111-X
C
Clear the contents of the WDT stage
RC 32K
1 0 0
0001-10XX-X
C
System clock source, on-chip RC oscillator
Yes
EXT (XTAL) 32K
1 0 0
0001-11XX-X
C
System clock source, external 32kHz clock
source or crystal oscillator 32.768kHz
HT1625
Rev. 1.10
12
September 11, 2002
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