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AN1048 Datasheet(PDF) 14 Page - STMicroelectronics

No. de pieza AN1048
Descripción Electrónicos  ST7 software LCD driver
PDF  21 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN1048 Datasheet(HTML) 14 Page - STMicroelectronics

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Example of a quadruplex LCD with ST72F321B
AN1048
14/21
Figure 9.
LCD timing diagram with Dead & Active Time (to decrease Vrms)
Segx
oc1_1
oc1_1
(ON)
Vcom
Vcom
Vseg
Vseg
Vcom
Vdd/2
Vdd/2
Segx_1
On
Vdd/2
COM2
Vdd/2
COM1
Vcom
Vdd/2
COM3
Vcom
Vdd/2
COM4
Segx_1
Off
active
time
control
period
T/4
T/2
3T/4
T
OC2
OC1_2
OC2
dead time



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