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參數(shù)資料
| 型號(hào)： | GDM12864A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Liquid Crystal Display Module |
| 中文描述： | 液晶顯示模塊 |
| 文件頁數(shù)： | 13/22頁 |
| 文件大小： | 198K |
| 代理商： | GDM12864A |
64CH Common Driver For Dot Matrix LCD
11
1998 Intech LCD Group Ltd.
FUNCTIONAL DESCRIPTION
1.RC Oscillator
The RC Oscillator generates CL2, M, FRM, of the KS0107B and CLK1, CLK2 of the KS0107B by the
oscillation resister R and capacitor C.
When selecting the master/slave, oscillation circuit is as following:
1)
Master Mode
KS0107B
KS0107B
R
R
CR
CR
C
C
R
f
C
f
open
open
External clock
2) Slave Mode
KS0107B
R
CR
C
open
open
V
DD
2.Timing Generation circuit
It generates CL2, M, FRM, CLK1, and CLK2 by the frequency from oscillation circuit.
1) Selection of Master/Slave (M/S)
When M/S is
“
H
”
, it generates CL2, M, FRM, CLK1, and CLK2 internally. When M/S is
“
L
”
,
it operates by receiving M, CLK2 from master device.
2) Frequency Selection (FS)
To adjust FRM by 70Hz, the oscillation frequency should be as following:
FS
Oscillation Frequency
H
L
f
OSC
=430KHz
f
OSC
=215KHz
In the slave mode, it is connected to V
DD.
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