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參數(shù)資料
| 型號： | EM65240 |
| 英文描述： | Graphic STN LCD Drivers |
| 中文描述： | 圖形STN液晶顯示器驅(qū)動 |
| 文件頁數(shù)： | 24/29頁 |
| 文件大?。?/td> | 451K |
| 代理商： | EM65240 |
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EM65240
240 COM/SEG Dot Matrix LCD Driver
* This specification are subject to be changed without notice.
4.8.2002
4
PIN DESCRIPTIONS
Segment mode
Table2 pin description of segment mode
Symbol
I/O Connected to
Functions
VDD
I
Power Supply Power supply for internal logic connects to
+2.5 to +5.5V
VSS
I
GND
Connect to Ground
V0R，V0L
V12R，V12L
V34R，V34L
V5R，V5L
I
Power Supply Power supply for LCD driver level
˙Normally，the bias voltage used is set by
resistor divider
˙Ensure that the voltage are set such that
VSS≦V5<V34<V12<V0
˙To further reduce the difference between
the output waveforms of LCD driver output
pin Y1 and Y240 ，externally connect ViR and
ViL
(i=0，12，34，5)
DI0 – DI7
I
Controller
Input for display data
˙In 4-bit parallel input mode，input data
into 4 pins DI0 – DI3
˙In 8-bit parallel input mode，input data
into8 pins DI0 – DI7
XCK
I
Controller
Clock signal for taking display data
Data is read on the falling of the clock
pulse
LP
I
Controller
Latch signal for display data
˙Data is latched on the falling edge of the
clock pulse
Selection of segment mode/common mode
S/C
Mode selection
H
segment mode
L
common mode
S/C
I
Controller
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