參數(shù)資料
型號(hào)： HD404618
廠商： Hitachi,Ltd.
英文描述： 4-Bit Single-Chip Microcomputer
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 61/89頁(yè)
文件大?。?/td> 358K
代理商： HD404618
HD404618 Series
61
Large Liquid-Crystal Panel Drive and V
LCD
:
To drive a large-capacity LCD, decrease the resistance of
the built-in division resistors by attaching external resistors in parallel, as shown in figure 38.
The size of these resistors cannot be simply calculated from the LCD load capacitance because the matrix
configuration of the LCD complicates the paths of charge/discharge currents flowing through the
capacitors. The resistance will also vary with lighting conditions. This size must be determined by trial
and error, taking into account the power dissipation of the device using the LCD, but a resistance of 1 to 10
k
would usually be suitable. (Another effective method is to attach capacitors of 0.1 to 0.3
μ
F.)
Always turn off the power switch (set bit 1 of the LCR to 0) before changing the liquid crystal drive
voltage (V
LCD
).
32
2
3
4
32
32
32
V
CC
V
2
V
3
GND
V
1
COM1
SEG1
to
SEG32
V
CC
V
2
V
3
GND
V
1
COM1
COM2
SEG1
to
SEG32
V
CC
V
2
V
3
GND
V
1
COM1
to
COM3
SEG1
to
SEG32
V
CC
V
2
V
3
GND
V
1
COM1
to
COM4
SEG1
to
SEG32
V
CC
V
LCD
V
CC
V
LCD
V
CC
V
LCD
V
CC
V
LCD
R
R
R
V (V )
V
2
V
3
GND
R
R
R
V (V )
V
2
V
3
GND
C
C
C
C = 0.1 to 0.3
μ
F
4-digit LCD
with sign
.
8-digit LCD
10-digit LCD
with sign
16-digit LCD
.
.
.
Static drive
1/2 duty cycle, 1/2 bias drive
1/3 duty cycle, 1/3 bias drive
1/4 duty cycle, 1/3 bias drive
V
≥
V
≥
GND
Figure 38 LCD Connection Examples
相關(guān)PDF資料
PDF描述
HD404618FS 4-Bit Single-Chip Microcomputer
HD404618H 4-Bit Single-Chip Microcomputer
HD404618TF 4-Bit Single-Chip Microcomputer
HD4074618 4-Bit Single-Chip Microcomputer
HD4074618FS CONNECTOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD404618FS 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Bit Single-Chip Microcomputer
HD404618H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404618SERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD404618TF 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4046212FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*