BU9795AFV-LB Datasheet, PDF (11/29 Pages) Rohm – Standard LCD Segment Drivers

BU9795AFV-LB MAX 108 segments (SEG27×COM4)
(3) Display control (DISCTL)
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
C
0
1 P4 P3 P2 P1 P0
Set Frame frequency
Setting
P4 P3
Reset initialize condition
80Hz
0
0
○
71Hz
0
1
64Hz
1
0
53Hz
1
1
(Note) About the characteristics of FR, refer to Oscillation characteristics.
Set LCD drive waveform
Setting
P2
Line inversion
0
Frame inversion
1
Reset initialize condition
○
Set Power save mode
Setting
P1 P0
Reset initialize condition
Power save mode 1
0
0
Power save mode 2
0
1
Normal mode
1
0
○
High power mode
1
1
(Note) VDD-VLCD≥3.0V is required for High power mode.
(Reference current consumption data)
Setting
Reset initialize condition
Power save mode 1
×0.5
Power save mode 2
×0.67
Normal mode
×1.0
High power mode
×1.8
(Note) Above current consumption data is reference value. It depends on panel load.
Datasheet
(Note) Frame frequency / LCD drive waveform / Power save mode setting will affect display image.
Select the best value in point of current consumption and display image using LCD panel (under real application).
Mode
Frame frequency
LCD drive waveform
Power save mode
Screen flicker
○
○
-
Display image / contrast
-
○
○
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TSZ02201-0P4P0D300510-1-2
26.Feb.2014 Rev.002