參數(shù)資料
型號(hào): HD66520T
廠商: Hitachi,Ltd.
英文描述: 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)
中文描述: 160通道4級(jí)灰度顯示列的內(nèi)部位圖的RAM(點(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器驅(qū)動(dòng)程序)
文件頁數(shù): 36/45頁
文件大?。?/td> 336K
代理商: HD66520T
HD66520T
1049
Chip Select Low Level Width
When continuous draw access (burst access) is performed when signal
&6
is low, the maximum display
access time, that is, t
FS
–1000 (ns) is necessary for the chip select low level width (Figure 35). This is
needed to secure the display access period for the first line.
When common driver HD66503 is used together with the HD66520, t
FS
can be calculated with the
following formula.
t
FS
=
4·n
DUTY
·f
FLM
1
f
FLM
: frame frequency
n
DUTY
: duty
When write operation is performed with the burst access having a frame frequency of 70 Hz and a duty
cycle of 1/240, display data of 77 bytes can be consequtively written in one burst access (write cycle is
180 ns).
CS
FLM
CL1
Display memory
access state
1st line data
display access
Draw access
t
CLR
(t
CLW
)
t
FS
1
2
2nd line data
display access
2nd line data access
Figure 35 Chip Select Low Level Width
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(diǎn)陣圖形LCD160通道驅(qū)動(dòng)器)
HD66523R 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)
HD66701 Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器)
HD66702 Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)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