BU97941FV-LB Datasheet, PDF (8/26 Pages) Rohm – Multifunction LCD Segment Driver

BU97941FV-LB MAX 104 segments (SEG26×COM4)
LCD Driver Bias / Duty Circuit
Voltage is generated for LCD driver.
Buffer amplifier is integrated with low power consumption possible.
(Noet1) Line and frame inversion can be set by MODESET command.
(Note2) 1/4duty, 1/3duty, and static duty can be set by DISCTL command.
For each liquid crystal display waveform, refer to ”Liquid crystal Display Waveform”.
Datasheet
Reset Initial State
The default condition after executing Software Reset is as follows:
Display is turned OFF
Each command register enters Reset state
DDRAM address is initialized
(Note) DDRAM data is not initialized. Therefore, it is recommended to write initial values to all DDRAM before Display on.
Command / Function Table
Function Description Table
NO Command
1 Mode Set (MODESET)
2 Display control (DISCTL)
3 Address set (ADSET)
4 LED control (LEDCTL)
5 RAM WRITE (RAMWR)
6 All Pixel ON (APON)
7 All Pixel OFF (APOFF)
8 All Pixel On/Off mode off (NORON)
9 Software Reset (SWRST)
Function
Liquid crystal Display setting
LCD setting1
LCD setting2
LED board ON/OFF setting
RAM Write Start setting
All display ON
All display OFF
Normal display APON/APOFF setting release
Software reset
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TSZ02201-0P4P0D300500-1-2
26.Feb.2014 Rev.002