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LD1961A Datasheet(PDF) 10 Page - LDT Co., Ltd |
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LD1961A Datasheet(HTML) 10 Page - LDT Co., Ltd |
10 / 23 page Ver1.0 10 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. Don’t Care Display Mode Settings : 00 : 7Grid, 11 Segments 01 : 7Grid, 11 Segments 10 : 6 Grids, 12 Segments 11 : 7 Grids, 11 Segments MSB b7 LSB b6 b5 b4 b3 b2 b1 b0 00 : COMMAND 1 |
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