EM65570
68COM/ 98SEG 65K Color STN LCD Driver
*15 VOUT pin. This pin applies when the following conditions are met: The built-in oscillator
circuit and built-in power supply are used; the voltage (boosted 2 times) is used;
VEE = 2.4 ~ 3.3; and the electronic control is preset (with code “1 1 1 1 1 1 1”).
Measuring conditions: bias=1/4~1/9; 1/68 duty; LCD driver pin is without load; RL=500
KΩ (between VOUT and VSS); C1=C2=1.0µF; C3=0.1µF; DCON=AMPON=”1”;
BF=”11”.
*16 VDD, VEE pins. These pins apply when the following conditions are met: The built-in
oscillator circuit and built-in power supply are used; there is no access from MPU; voltage
(boosted 6 times) is used; and the electronic control is preset (with code “1 1 1 1 1 1 1”);
Display is ALL ON pattern {Rf3, Rf2, Rf1, Rf0 = (“0 0 0 0 ”) }; and the LCD driver pin is
without load.
Measuring conditions: VDD=VEE; VBA=VREF; C1=C2=1.0µF; C3=0.1µF;
DCON=AMPON=”1”; NLIN=”0”; (BF1,BF0)=(1,1); 1/68 duty; 1/9 bias; BF=”11”.
*17 VDD, VEE pins. These pins apply when the following conditions are met: The built-in
oscillator circuit and built-in power supply are used; there is no access from MPU; voltage
(boosted 6 times) is used; and the electronic control is preset (with code “1 1 1 1 1 1 1”);
Display is ALL ON pattern {Rf3, Rf2, Rf1, Rf0 = (“0 0 0 0 ”) }; and the LCD driver pin is
without load.
Measuring conditions: VDD=VEE; C1=C2=1.0µF; C3=0.1µF; DCON=AMPON=”1”;
NLIN=”0”; (BF1,BF0)=(1,1); 1/68 duty; 1/9 bias; BF=”11”.
*18 VBA pin. Measuring conditions: N times boosting (N=2~6); electronic control = “1 1 1 1 1
1 1”; DCON=AMPON=”1”; NLIN=”0”; 1/68 duty; VDD=VEE; VBA=VREF; C1=C2=1.0µF;
C3=0.1µF; and the LCD driver pin is without load.
*19 VREF pin. Measuring conditions: VDD = 3 volt; N times boosting (N=2 ~ 6); electronic
control = “1 1 1 1 1 1 1”; DCON=AMPON=”1”; NLIN=”0”; 1/68 duty.
The following shows the relationship of the oscillator frequency (fosc) and external
clock frequency (fCK) with the LCD frame frequency (fFLM) under each display mode.
Ratio of Display Duty Cycle (1/D)
Display Mode
Original
Oscillating Clock
1/68 to 1/44 1/40 to 1/24 1/20 to 1/12
1/8
fosc/(2*31*D) fosc/(4*31*D) fosc/(8*31*D)
fosc /(16*31*D)
Simple gradation (65K color)
Simple gradation (4096 color)
Simple gradation (256 color)
Simple gradation (65K color)
Simple gradation (4096 color)
Simple gradation (256 color)
When using
built-in oscillator
circuit (fosc)
fosc /(2*15*D) fosc /(4*15*D) fosc /(8*15*D) fosc /(16*15*D)
fosc /(2*7*D)
fCK /(2*31*D)
fCK /(2*15*D)
fCK /(2*7*D)
fosc /(4*7*D)
fCK /(4*31*D)
fCK /(4*15*D)
fCK /(4*7*D)
fosc /(8*7*D)
fCK /(8*31*D)
fCK /(8*15*D)
fCK /(8*7*D)
fosc /(16*7*D)
fCK /(16*31*D)
fCK /(16*15*D)
fCK /(16*7*D)
When using
external clock
from CK pin (fCK)
Product Specification (V1.0) 09.05.2005
(This specification is subject to change without further notice)
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ELAN [ ELAN MICROELECTRONICS CORP ]
