- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370471 > HD66421TB0 (Hitachi,Ltd.) (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) PDF資料下載
參數(shù)資料
| 型號(hào)： | 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(nèi)存提供160通道4級(jí)灰度的點(diǎn)陣圖形液晶顯示驅(qū)動(dòng)程序） |
| 文件頁數(shù)： | 12/46頁 |
| 文件大?。?/td> | 201K |
| 代理商： | HD66421TB0 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁當(dāng)前第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁
Preliminary
Rev. 1.1E '99.02.10
HD66421
MPU Interface
The HD66421 can interface directly to an MPU
through an 8-bit data bus or through an I/O port
(figure 2). The MPU can access the HD66421
internal registers independently of internal clock
timing.
The index register can be directly accessed but the
other registers (data registers) cannot. Before
accessing a data register, its register number must
be written to the index register. Once written, the
register number is held until it is rewritten,
enabling the same register to be consecutively
accessed without having to rewrite to the register
number for each access. An example of a register
access sequence is shown in figure 3.
Figure 3 8-Bit Data Transfer Sequence
RD
WR
DB7 to
DB0
Write index
register
RS
CS
Write data
register
Write index
register
Read data
register
Read data
register
Data
Data
Data
Data
Data
Data
Write data
register
C0
C1
C2
C3
A0 - A7
CS
RS
RD
WR
DB0 - DB7
H8/325
HD66421
8
a) Interface through Bus
A15 - A0
A0
RD
WR
D0 - D7
CS
RS
RD
WR
DB0 - DB7
Z80
HD66421
8
Figure 2 8-Bit MPU Interface Examples
b) Interface through I/O Port
decoder
12
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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) |
| 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) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。