參數(shù)資料
型號(hào)： HD66420TA0
廠商： Hitachi,Ltd.
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)： 25/52頁(yè)
文件大小： 167K
代理商： HD66420TA0
HD66420
25
Display RAM Reading by LCD Controller:
Data is read by the HD66420 to be displayed asynchronously with accesses by the MPU. However, because
simultaneous access could damage data in the display RAM, the HD66420 internally arbitrates access
timing; access by the MPU usually has priority and so access by the HD66420 is placed between accesses
by the MPU. Accordingly, an appropriate time must be secured (see the given electrical characteristics
between two accesses by the MPU).
a) INC = 0
H’0
H’1
H’27
H’00
H’01
H’7F
H’28
H’35
WLS= 0
WLS= 1
b) INC = 1
H’0
H’1
H’27
H’00
H’01
H’02
H’4F
H’28
H’35
WLS= 0
WLS= 1
WLS= 0
WLS= 1
H’4F
Valid area
Invalid area
Valid area (WLS= 1)
Invalid area
Figure 13 Display Address Increment
相關(guān)PDF資料
PDF描述
HD66421 (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66421TB0 (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66503 240-Channel Common Driver with Internal LCD Timing Circuit(帶內(nèi)部LCD定時(shí)電路的240通道驅(qū)動(dòng)器)
HD66520T 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM(點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66421 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:(RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
HD66421TB0 制造商:Renesas Electronics Corporation 功能描述:
HD66503 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:LCD Display Driver
HD66520 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:LCD Display Driver
HD66520T 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:LCD Display Driver
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