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參數(shù)資料
| 型號(hào)： | LH1554P |
| 英文描述： | LCD Display Driver |
| 中文描述： | 液晶顯示驅(qū)動(dòng)程序 |
| 文件頁(yè)數(shù)： | 12/51頁(yè) |
| 文件大?。?/td> | 288K |
| 代理商： | LH1554P |
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12
LH155BA
Data Write Operation
n
n
n + 4
n + 1
n + 1
n + 2
n + 2
n + 3
n + 4
n + 3
D
7
-D
0
WRB
Internal
Bus
Holder
WRB
Data Read Operation
D
7
-D
0
WRB
Address Set
n Address
Data Read
n Address
Data Read
n + 1 Address
Data Read
n + 2 Address
Dummy
Read
RDB
n
***
n
n + 1
n + 2
2.2. Access to Display RAM and
Internal Register
The LH155BA makes access to display RAM, and
internal register by data bus D
7
to D
0
, chip
selection CSB pin, display RAM/register shifting
RS pin, and read/write control RDB and WRB pins.
When CSB is at "H", it is in non-selective state and
cannot access display RAM and internal registers.
When making access to them, set CSB to "L".
The access to either display RAM or internal
registers can be shifted by RS input.
RS = "L" : Display RAM data
RS = "H" : Internal command register
The data of 8-bit data bus D
7
to D
0
are written by
write-operation after address setting through MPU.
The timing of write is at the rising of WRB for 80-
family MPU and at the falling of E for 68-family
MPU respectively.
Write is internally processed by intermediately
placing the bus holder in the internal data bus.
During data writing from MPU, the data are
temporally held in the bus holder, then they are
written by the time of the next cycle.
Since the read sequence of display RAM data is
limited, note that when address set is made, the
designated address data are not output to read
command immediately after the address set, but
are output when the second data are read,
resulting in requiring one time dummy read.
Dummy read is always required one time after
address set and write cycle.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LH15550 | 制造商:TE Connectivity 功能描述: |
| LH1556AAC | 功能描述:固態(tài)繼電器-PCB安裝 Dual Normally Open Form 1A 350V RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點(diǎn)形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
| LH1556AAC_11 | 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:Dual 1 Form A Solid-State Relay |
| LH1556AACTR | 功能描述:固態(tài)繼電器-PCB安裝 Dual Normally Open Form 1A 350V RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點(diǎn)形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
| LH1556AB | 功能描述:固態(tài)繼電器-PCB安裝 Dual Normally Open Form 1A 350V RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點(diǎn)形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
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