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参数资料
| 型号： | SED1225DGB |
| 元件分类： | 显示控制器 |
| 英文描述： | 24 X 60 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC171 |
| 封装： | DIE-171 |
| 文件页数： | 17/39页 |
| 文件大小： | 330K |
| 代理商： | SED1225DGB |
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5–24
EPSON
SED1225 Series
LED RAM (Register)
The SED1225 has the LED drive functions to drive the
LCD by controlling the XLE1 and XLE2 pins.
The following provides the relationship between the
RAM address and write data by LED register setup.
The following defines the XLE1 and XLE2 pin state
depending on the TIM1, TIM2, LED1 and LED2 set
values.
Electronic Control RAM (Register)
The SED1225 has the electronic control functions to
control LCD drive voltages and to adjust the LCD
display density. One of 32-state LCD voltages can be
selected when the 5-bit data is written in the Electronic
Control RAM.
The following provides the relationship between the
RAM address and write data by electronic control setup.
0
00
28H
29H
Electronic
Control
00
0
VREG-0
VREG-
α
VREG-2
α
VREG-29
α
VREG-30
α
VREG-31
α
For test
0
001
1
0
010
2
1
101
1
110
1
111
29
30
31
Electronic Control Data
Status
VEV
D7
D0
RAM Address
Function
* : Unused
α : α=VREG/95 (1/4biased)
Note: Do not use address 29H as it can be used for IC chip test only.
**
*
**
*
**
*
**
*
**
*
**
*
**
***
..
.
..
.
..
.
LED Register Set Value
TIM2
LED2
Output Status (XLE1, XLE2)
TIM1
LED1
0
XLE = High impedance
0
1
XLE = Low
1
0
Keeps XLE low approximately 15 sec
after input of Display ON command.
1
XLE = Low
Note: When this function is used, minimize power supply and power
cable impedance to avoid IC misoperation due to large current.
LED Register Data
Function
RAM Address
D7
D3
D2
D1
D0
LED ON/OFF
2AH
VV
TIM2 TIM1 LED2 LED1
Timer
V : Unused
相关PDF资料 |
PDF描述 |
|---|---|
| SED1225DAB | 24 X 60 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC171 |
| SED1233D0A | 16 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC193 |
| SED1233 | 16 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC131 |
| SED1231 | 23 X 65 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC131 |
| SED1242DGB | 16 X 80 DOTS DOT MAT LCD DRVR AND DSPL CTLR, UUC210 |
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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