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ATM12864D Schematic ( Datenblatt PDF ) - ETC

Teilenummer ATM12864D
Beschreibung Liquid Crystal Display Module
Hersteller ETC
Logo ETC Logo 

Gesamt 21 Seiten
		
ATM12864D Datasheet, Funktion
User’s Guide
ATM12864D
Liquid Crystal Display Module






ATM12864D Datasheet, Funktion
64CH Common Driver For Dot Matrix LCD 5
Electro-Optical characteristics
TN Type (Twisted Nematic )
ITEM
SYMBOL MIN.
Viewing Angle
2- 1
40
TYP.
-
MAX.
-
UNIT
deg.
CONDITION NOTE
Cr = 2.0
1,2
Contrast Ratio
Cr
-4 -
-
=20
=0
3
Response Time (rise)
tR
- 110 -
ms
=20
=0
4
Response Time (fall)
tF
- 110 -
ms
=20
=0
4
STN Type (Super Twisted Nematic )
ITEM
SYMBOL MIN.
Viewing Angle
2- 1
70
-90
Contrast Ratio
Cr -
Response Time (rise)
tR
-
Response Time (fall)
tF
1. Definition of angle &
-
TYP. MAX. UNIT CONDITION NOTE
-
+90 deg.
Cr = 2.0
1,2
4-
-
=20
=0
110 -
ms
=20
=0
110 -
ms
=20
=0
2. Definition of viewing angle
3
4
4
1&
2
Y( =180 )
2
1
Y’( =0 )
Cr
1<20 < 2
2.0
20
1
2
3. Definition of contrast Cr
4. Definition of optical response
100%
B
Intensity Selected
Dots
Non-
selected
Dots
Off On
90%
Intensity 100%
0% A 100%
Set Point
Driving Voltage
Cr = ( A / B ) p Negative : P = -1
tR
Positive : P = +1
Off
10%
Time
tF

6 Page







ATM12864D pdf, datenblatt
64CH Common Driver For Dot Matrix LCD 11
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
R CR
C
Rf Cf
KS0107B
R CR
C
open open
External clock
2) Slave Mode
KS0107B
R CR
open
VDD
C
open
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 fOSC=430KHz
L fOSC=215KHz
In the slave mode, it is connected to VDD.

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