參數(shù)資料
型號： HCD66731A00BP
廠商： Hitachi,Ltd.
英文描述： Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
中文描述： 點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器支持日語漢字，韓文字體顯示
文件頁數(shù)： 82/131頁
文件大?。?/td> 5332K
代理商： HCD66731A00BP
HD66730/HD66731
81
Initial Setting of Pin Functions
1. Bus/serial interface
The input level of pin IM selects the 8-bit bus or serial interface. For an 8-bit bus interface, data is
written into the index register or read from the status register according to the level of pin R/W. Note
that pin RS must be held low during this time. For serial interface, data is written into the index register
according to bit R/W. Note that bit RS must be 0 during this time. During reset, only the index register
and status register can be set and RAM cannot be accessed.
2. LCD driver output
Since segment drivers (pins SEG1 to SEG71/119) are in a display-off state during reset, they output
non-selective levels (V2/V3 level) during reset. At this time, a 4-line 6-character display alternates its
current. Common drivers (pins COM1 to COM24/53 and COMS) output non-selective levels (V1/V4
level) during reset, and alternate its current for a 4-line 6-character display.
Note:
Pins COM25/COMD of HD66730 are grounded (0V) during reset. When pin COM25 is used
without expanding drivers to the common side, display may be performed using the liquid crystal
drive voltage. In this case, adjust the liquid crystal voltage during reset.
3. Extension driver interface output (HD66730)
Since bits EXT2/1 are 11 during reset, extension is performed to both segment side and common side.
Pin CL2 outputs the oscillation (operation) frequency clock. Pins CL1 and M output signals in a cycle
corresponding to a 4-line 6-character display size. In addition, pins SEGD and COM25/COMD output
low (ground level) since the display is turned off.
4. Booster output
The operation of the internal booster stops because bit BST becomes 0 during reset.
Note:
The potential of pins V5OUT2 and V5OUT3 increases by about +0.7 V with respect to GND level
when the booster stops. When using external polarized capacitors, make sure that no reverse bias
occurs.
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參數(shù)描述
HCD66731A01BP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
HCD66740BP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HCD66740WBP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HCD66750BP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
HCD66751BP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
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