LD1961A Datasheet, PDF (10/23 Pages) LDT Co., Ltd – 12 SEGMENT X 7 GRID LED Driver

LD1961A
12 SEGMENT X 7 GRID LED Driver with key scan
FUNCTIONAL DESCRIPTION
COMMANDS
The LD1961A has 4 kind of commands. The first command is display setting commands, the second
command is data setting command. The third command is address setting command and the fourth
command is display control command.
COMMAND 1 : DISPLAY MODE SETTING COMMAND
The Display mode setting command has 2bit (b1,b0) for display mode setting and 2bit (b7,b6)
for commands. And 4bits (b5 ~ b2) are don’t care bit. The command bits (b7,b6) are “0”,”0” for
COMMAND1.
The display mode setting command determines the number of segments and grids. This command
should be executed for display off. And the default of b1,b0 are “1”,”1” for power on. This status is
selected 7 grids, 11 segments and key scan enable. If b1,b0 are “1”,”0” then 6 grids 12 segments
and key scan enable selected. If b1,b0 are “0”,”1” or “0”,”0” then 7 grids 11 segments and key scan
disable selected.
MSB
LSB
b7 b6 b5 b4 b3 b2 b1 b0
Don’t Care
00 : COMMAND 1
Display Mode Settings :
00 : 7Grid, 11 Segments
01 : 7Grid, 11 Segments
10 : 6 Grids, 12 Segments
11 : 7 Grids, 11 Segments
10
Ver1.0