ST7567 View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'ST7567' PDF : 73 Pages View PDF
ST7565S
<Turning the power (VDD - VSS) off : When command control is not possible.>
2) Reset (The LCD powers (VDD - VSS) are off.) → Power (VDD - VSS) OFF
• Observe tL > tH.
• When tL < tH, an irregular display may occur.
For tL, make the power (VDD - VSS) falling characteristics longer or consider any other method. tH is
determined according to the external capacity C2 (smoothing capacity of V5 to V1) and the driver’s discharging
capacity.
Reset
Power Off
tL
VDD
1.8V
RES
VDD
SEG
VDD
COM
Since the power (VDD-VSS) is cut off,the
output comes not be fixed.
V1
About 1V:below Vth of the LCD Panel
V2
V3
V4
V5
tH
<Reference Data>
V5 voltage falling (discharge) time (tH) after the process of operation → power save → reset.
V5 voltage falling (discharge) time (tH) after the process of operation → reset.
100
VDD-VSS(V)
1.8
2.4
50
3.0
4.0
5.0
Ver 0.3c
0
0.5
1.0
C2 : V1 to V5 capacity (uF)
Figure 31
58/73
2002/07/22
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