PS12001ARN-0 POWERTIP [Powertip Technology], PS12001ARN-0 Datasheet - Page 52

• Manufacturer Part Number: PS12001ARN-0
• Description: OUTLINE DIMENSION & BLOCK DIAGRAM
• Manufacturer: POWERTIP [Powertip Technology]

ST7066U
!" Supply Voltage for LCD Drive
There are different voltages that supply to ST7066U’s pin (V1 - V5) to obtain LCD drive waveform. The relations
of the bias, duty factor and supply voltages are shown as below:
V2.0
1/4 bias
(1/8, 1/11 duty cycle)
Supply Voltage
V
V1
V2
V3
V4
V5
CC
V1
V2
V3
V4
V5
V
CC
-5V
(+5V)
VR
R
R
R
R
V
Vcc - 1/4V
Vcc - 1/2V
Vcc - 1/2V
Vcc - 3/4V
LCD
Vcc - V
1/8, 1/11
29/42
1/4
LCD
1/5 bias
(1/16 duty cycle)
Duty Factor
LCD
LCD
LCD
LCD
Bias
Vcc - 1/5V
Vcc - 2/5V
Vcc - 3/5V
Vcc - 4/5V
V
V1
V2
V3
V4
V5
Vcc- V
CC
1/16
1/5
LCD
V
LCD
LCD
LCD
LCD
CC
-5V
(+5V)
VR
R
R
R
R
V
LCD
2001/03/01