參數(shù)資料
型號(hào)： HCD66717A03BP
廠商： Hitachi,Ltd.
元件分類： 晶體
英文描述： (Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver)
中文描述： （低功耗點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器）
文件頁數(shù)： 47/90頁
文件大?。?/td> 716K
代理商： HCD66717A03BP
HD66717
499
Transferring Parallel Data
Interface with an 8-Bit MPU
Eight-bit data can be transferred in parallel by setting the IM1 and IM0 pins to the V
CC
and GND levels,
respectively (Figure 24). The HD66717 can interface directly with an 8-bit bus synchronized with the E
clock, or with an 8-bit MCU through an I/O port (Figure 25). When the number of I/O lines or chip
packaging size is limited, a 4-bit bus interface or even serial data transfer should be used.
R/W
E
Internal signal
DB7
Internal operation
Data
Busy
Busy
Not
Busy
Data
Instruction write
Busy flag check Busy flag check Busy flag check
Instruction write
RS
Figure 24 8-Bit Parallel Data Transfer Timing Sequence
E
RS
R/W
DB0 - DB7
C0
C1
C2
A0 - A7
H8/325
HD66717
8
I/O port interface
Figure 25 8-Bit MPU Interface
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