參數資料
型號: HD66421TB0
廠商: Hitachi,Ltd.
英文描述: (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD)
中文描述: (內存提供160通道4級灰度的點陣圖形液晶顯示驅動程序)
文件頁數: 24/46頁
文件大?。?/td> 201K
代理商: HD66421TB0
Preliminary
Rev. 1.1E '99.02.10
HD66421
Read-Modify-Write:
incremented after reading form or writing data to
the display RAM at normal mode. However, X-
or Y-address is not incremented after reading data
from the display RAM at read-modify-write
mode. The data which is read from the display
RAM may be modified and written to the same
X-
or
Y-address
is
START
END
Set X-address
Set Y-address
dummy read
Read Data
Write Data
Finish Modifying
no
yes
Address
incremented
Figure 18 The Flow Chart for Read-Modify-Write
address without re-setting the address. Data
is temporarily latched into a HD66421's
buffer and then output next time a read is
performed in a subsequent cycle. This means
that the dummy read is necessary after every
cycle. This sequence is shown in figure 18.
24
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相關代理商/技術參數
參數描述
HD66503 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66520 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66520T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66520TA0 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66520TB0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM