- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370471 > HD66727 (Hitachi,Ltd.) Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器) PDF資料下載
參數(shù)資料
| 型號： | HD66727 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器) |
| 中文描述： | 低功耗點陣液晶顯示控制器/鍵掃描功能（帶鍵掃描功能的圖形液晶顯示控制器/驅(qū)動器驅(qū)動程序） |
| 文件頁數(shù)： | 42/98頁 |
| 文件大?。?/td> | 1576K |
| 代理商： | HD66727 |
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頁當前第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁
HD66727
42
IRE:
When IRE is 1, the key scan interrupt (IRQ*) generation is enabled. When a key is pressed, the IRQ*
pin outputs a low level signal.
KF1, KF0:
Used for specifying the key scan cycle. Set these bits according to the mechanical
characteristics of the keys and the oscillation frequency (Table 22).
Table 22
KF Bits and Key Scan Cycles
NL1
KF1
KF0
Key Scan Cycle
Key Strobe Width
1 or 2 display lines (NL1=0)
0
0
160/fosc
20/fosc
1 or 2 display lines (NL1=0)
0
1
320/fosc
40/fosc
1 or 2 display lines (NL1=0)
1
0
640/fosc
80/fosc
1 or 2 display lines (NL1=0)
1
1
1,280/fosc
160/fosc
3 or 4 display lines (NL1=1)
0
0
320/fosc
40/fosc
3 or 4 display lines (NL1=1)
0
1
640/fosc
80/fosc
3 or 4 display lines (NL1=1)
1
0
1,280/fosc
160/fosc
3 or 4 display lines (NL1=1)
Note:
fosc is the oscillation frequency or external clock frequency.
1
1
2,560/fosc
320/fosc
Write Data to RAM
The write data to RAM instruction (Figure 21) writes 8-bit data to annunciator or DDRAM, lower 6-bit
data to LED port, SEGRAM or CGRAM, or lower two bits to shift direction change bits of SEG/COM that
is selected by the previous specification of the address set instruction (annunciator/LED/SEGRAM address
set, CGRAM address set, or DDRAM address set).
After a write, the address is automatically incremented or decremented by 1 according to the I/D bit setting
in the entry mode set instruction. The annunciator or LED port address is not automatically updated; it must
be specifically updated to write data to a different address. During the sleep and standby modes, DDRAM,
CGRAM, or SEGRAM cannot be accessed.
1
RS R/W DB7
DB0
0
D
D
D
D
D
D
D
D
Figure 21 Write Data to RAM Instruction
Read Data from RAM
The read data from RAM instruction (Figure 22), reads 8-bit data from DDRAM, or 5-bit data from
CGRAM or SEGRAM that is selected by the previous specification of the address set instruction
(SEGRAM address set, CGRAM address set, or DDRAM address set). The unused upper three bits of
CGRAM or SEGRAM data are read as 000; annunciator data cannot be read. If no address is specified by
the address set instruction just before this instruction, the first data read will be invalid. When executing
consecutive read instructions, the next data is normally read from the next address.
相關PDF資料 |
PDF描述 |
|---|---|
| HD66728 | 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點圖形LCD控制器) |
| HD66730 | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器) |
| HD66731 | Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器) |
| HD66731A00TB0L | 122 x 32 pixel format, Compact LCD size |
| HD66731A00TA0L | Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HD66727A03 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03BP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03TA0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66727A03TA0L | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HD66727A04 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
發(fā)布緊急采購，3分鐘左右您將得到回復。