- 您现在的位置：买卖IC网 > PDF目录69341 > SED1241TXX 24 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC PDF资料下载
参数资料
| 型号： | SED1241TXX |
| 元件分类： | 显示控制器 |
| 英文描述： | 24 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC |
| 封装： | TCP |
| 文件页数： | 9/67页 |
| 文件大小： | 736K |
| 代理商： | SED1241TXX |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页
EPSON
8–17
SED1240 Series
SED1240
Series
[When using the V5 voltage regulating built-in resistor (Use of V5 voltage regulating built-in resistor is set by command.)]
When the V5 voltage regulating built-in resistor and the electronic volume function are used, the liquid crystal supply
voltage V5 can be controlled and the density of liquid crystal display can be controlled by commands only without adding
any external resistor.
The V5 voltage can be obtained by the following expression 2 by adjusting resistors Ra and Rb within the range of
| V5 | < | VOUT |.
V5 = (1 +
Rb
) VEV
.............................. 2
Ra
In this case, VEV is determined by the constant-voltage source within the IC and by setting the electronic volume. When
the electronic volume value is (00000), VREG = 2.0 V, being constant.
The voltage range of the V5 output can be adjusted by
changing the built-in resistor ratio (1 + Rb/Ra) by
command. Reference values are shown in Table 5 and
Fig. 2.
Table 5 V5 voltage regulating built-in resistor ratio
set values (reference values)
Built-in Ra
Built-in Rb
V0
VDD
+
V5
VEV (constant-voltage source
+ electronic volume)
-
Ra
Rb
Command
(1 + Rb/Ra)
IR1
IR0
0
2.81
0
1
3.27
1
0
3.72
1
4.21
Fig. 2
(00)
(10)
(01)
(11)
0
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
8
162432
V5[V]
V5 voltage by V5 voltage regulating built-in resistor
ratio set value and electronic volume resistor value
(reference value)
[Fig. 2]
V5 voitage regulating built-in
resistor ratio set value (IRI. IRO)
Electronic volume resistor value(decimal)
相关PDF资料 |
PDF描述 |
|---|---|
| SED1278D0G | 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC |
| SED1278F0H | 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, PQFP80 |
| SED1278D | 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC80 |
| SED1278F | 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, PQFP80 |
| SED1278F0G | 16 X 40 DOTS DOT MAT LCD DRVR AND DSPL CTLR, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SED1278 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D | 制造商:EPSON 制造商全称:EPSON 功能描述:Dot Matrix LCD Controller Driver |
| SED1278D0A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D0B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
| SED1278D0C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CMOS DOT MATRIX LCD CONTROLLER DRIVER |
发布紧急采购，3分钟左右您将得到回复。