BU9795AKS2 Datasheet, PDF (18/40 Pages) Rohm – Standard LCD Segment Drivers

BU9795Axxx Series MAX 140 segments (SEG35×COM4)
○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
* 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
Power save mode 1
0
0
Power save mode 2
0
1
Normal mode
1
0
High power mode
1
1
*VDD-VLCD≥3.0V is required for High power mode.
Reset initialize condition
○
(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
*Above current consumption data is reference value. It depends on panel load.
(Note) Frame rate FR / LCD drive waveform / Power save mode SR will effect 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
-
○
○
Datasheet
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
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TSZ02201-0A0A2D300020-1-2
12.July.2012 Rev.002