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参数资料
| 型号： | SED1240TXX |
| 元件分类： | 显示控制器 |
| 英文描述： | 32 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC |
| 封装： | TCP |
| 文件页数： | 7/67页 |
| 文件大小： | 736K |
| 代理商： | SED1240TXX |
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EPSON
8–15
SED1240 Series
SED1240
Series
Boosting circuit
The SED1240 series is provided with a boosting circuit
for triple boosting and double boosting for the potential
between VDD and VSS2.
For triple boosting, connect a capacitor between CAP1+
and CAP1–, between CAP2+ and CAP2–, and between
VDD and VOUT, and the VDD - VSS2 potential is triple-
boosted to the negative side and output to the VOUT pin.
For double boosting, connect a capacitor between CAP1+
and CAP1– and between VDD and VOUT, set CAP2+ to
OPEN, and connect CAP2– to VOUT, and the VDD - VSS2
potential is double-boosted to the negative side and
output to the VOUT pin.
Because the boosting circuit uses signals from the
oscillator output, the internal oscillating circuit or the
external clock must be in operation.
The relation of boosting voltages is shown below.
Set the potential between the VDD and VSS2 to ensure that
the VOUT does not exceed the permissible operating
voltage range of VSS - VOUT (V5) when double or triple
boosted.
VSS2
VOUT
CAP2–
CAP2+
CAP1–
CAP1+
VSS2
VOUT
CAP2–
CAP2+
OPEN
CAP1–
CAP1+
VDD = 0V
VSS2 = –3V
VOUT = 3VSS2 = –9V
Potential relation of triple boosting voltages
.
VDD = 0V
VSS2 = –3V
VOUT = 2VSS2 = –6V
Potential relation of double boosting voltages
.
* Set the VSS2 voltage range to ensure that VOUT terminal voltage does not exceed the permissible operating
voltage range of VSS - VOUT and absolute maximum rating.
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| SED1241DAB | 24 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC210 |
| SED1241TXX | 24 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC |
| 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 |
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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 |
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