參數(shù)資料
型號： HD66732
廠商： Hitachi,Ltd.
英文描述： Graphics Liquid Crystal Display Controller/Driver Supporting JIS Level-1 and Level-2 Kanji ROM(圖形LCD控制器/驅(qū)動器)
中文描述： 圖形液晶顯示控制器/驅(qū)動器支持日標級- 1和第2級漢字光盤（圖形液晶顯示控制器/驅(qū)動器）
文件頁數(shù)： 18/133頁
文件大?。?/td> 2608K
代理商： HD66732
HD66732
18
Cursor position
Display position
DDRAM address
Note: The cursor/blink or black-white reversed control is
also active when the address counter indicates the
CGRAM or SEGRAM. However, it has no effect on the
display.
1
2
3
4
5
6
7
8
11
9
10
12
00
01
02
03
04
05
06
07
0A
08
09
0B
Figure 2 Cursor Position and DDRAM Address
Oscillation Circuit (OSC)
The HD66732 can provide R-C oscillation simply through the addition of an external oscillation-resistor
between the OSC1 and OSC2 pins. The appropriate oscillation frequency for operating voltage, display
size, and frame frequency can be obtained by adjusting the external-resistor value. Clock pulses can also be
supplied externally. Since R-C oscillation stops during the standby mode, current consumption can be
reduced. For details, see the Oscillation circuit section.
Liquid Crystal Display Driver Circuit
The liquid crystal display driver circuit consists of 54 common signal drivers (COM1 to COM52, COMS1,
and COMS2) and 120 segment signal drivers (SEG1 to SEG120). When the number of lines are selected by
a program, the required common signal drivers automatically output drive waveforms, while the other
common signal drivers continue to output unselected waveforms.
Character pattern data is sent serially through a 120-bit shift register and latched when all needed data has
arrived. The latched data then enables the segment signal drivers to generate drive waveform outputs.
The shift direction of 120-bit data can be changed by the SGS bit. The shift direction for the common
driver can also be changed by the CMS bit by selecting an appropriate direction for the device mounting
configuration.
When multiplexing drive is not used, or during the standby or sleep mode, all the above common and
segment signal drivers output the GND level, halting the display.
Booster (DC-DC Converter)
The booster doubles, triples, or quadruples a voltage input to the Vci pin. With this, both the internal logic
units and LCD drivers can be controlled with a single power supply. Boost output level from single to
quadruple boost can be selected by software. For details, see the Power Supply for Liquid Crystal Display
Drive section.
相關PDF資料
PDF描述
HD66740TB0 50/MDR/RECP/VERT PRS FIT/M2.6/SCW/30MIN
HD66740WTB0 112 x 80-dot Graphics LCD Controller/Driver
HD66751 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
HD66750TB0 122 x 32 pixel format, Compact LCD size
HD66750 128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
相關代理商/技術參數(shù)
參數(shù)描述
HD66735 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HD66735 Procedure for setting Standby/Sleep/Display off mode. Technical Update/Device
HD66740 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD66740TB0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HD66740WTB0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HD66741 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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