SED1565 Datasheet, PDF (64/87 Pages) Epson Company – Direct display of RAM data through the display data RAM

SED1565 Series
• In case of other models than the above
<Turning the power (VDD - VSS) off>
Power save (The LCD powers (VDD - VSS) are off.) -> Power (VDD - VSS) OFF
• Observe tL > tH.
• When tL < tH, an irregular display may occur.
Set tL on the MPU according to the software. tH is determined according to the external capacity C (smoothing
capacity of V5 to V1) and the external resisters Ra + Rb (for V5 voltage regulation)
Power Power
save Off
tL
VDD
1.8 V
SEG
COM
Since the power (VDD-VSS) is
cut off, the output comes not
be fixed.
V1
V2
About 1 V: Below Vth of the LCD panel
V3
V4
V5
tH tH is determined depending on the time
constant of (Ra + Rb) C.
8–62
EPSON