參數(shù)資料
型號： HD66520T
廠商： Hitachi,Ltd.
英文描述： 160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM(點陣圖形LCD160通道驅(qū)動器)
中文描述： 160通道4級灰度顯示列的內(nèi)部位圖的RAM（點陣圖形LCD160通道驅(qū)動器驅(qū)動程序）
文件頁數(shù)： 13/45頁
文件大?。?/td> 336K
代理商： HD66520T
HD66520T
1026
Address Management
The HD66520 has an address management function that corresponds to three display sizes all of which
are standard sizes for portable information devices: a 160-dot-wide by 240-dot-long display (small
information devices); a 320-dot-wide by 240-dot-long display (quarter VGA size); and a 320-dot-wide by
480-dot-long display (half VGA size). Up to four HD66520s can be connected to at a time to configure
easily liquid crystal displays with the resolutions mentioned above.
Driver Layout and Address Management
The Y lines on a liquid crystal panel and memory data in a driver are inverted horizontally depending on
the connection side of the liquid crystal panel and the driver. When several drivers are connected, address
management is needed for each driver. Although reinverted bit-map plotting or address management by
the
&6
pin in each driver are possible by using special write addressing, the load on the software is
significantly increased. To avoid this, the HD66520 provides memory addresses independent of
connection side, but responds to the setting of pins LS0, LS1, and SHL.
How to Use the LS1 and LS0 Pins
Pins LS1 and LS0 set the LSI position (up to four) as shown in Figure 8 by assigning ID numbers 0 to 3
to each HD66520.
HD66520
HD66520
ID = 0
ID = 2
HD66520
ID = 1
HD66520
ID = 3
H
H
480
LCD panel
320
LS1
L
L
H
H
L: Low level
H: High level
LS0
L
H
L
H
ID No.
0
1
2
3
Address Arrangement
Upper-left side
Lower-left side
Upper-right side
Lower-right side
Figure 8 LS0 and LS1 Pin Setting and Internal Memory Map
相關(guān)PDF資料
PDF描述
HD66522 160-Channel Column Driver with Internal Bit-Map RAM for Reflective Color Display and Grayscale Display(點陣圖形LCD160通道驅(qū)動器)
HD66523R 240-Channel Common Driver with Internal LCD Timing Circuit(帶內(nèi)部LCD定時電路的240通道驅(qū)動器)
HD66701 Dot Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
HD66702 Dot Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
HD66702R Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
HD66522 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66523 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66523R 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
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