Datasheet

Rev. 1.10 30 May 16, 2011 Rev. 1.10 31 May 16, 2011
HT16K33
RAM Mapping 16*8 LED Controller Driver with keyscan
Name
Command / Address
Option Description Def.
D15 D14 D13 D12 D11 D10 D9 D8
ROW/INT
set
1 0 1 0 X X act
row/
int
{act, row/
int }
Write only
Denes INT/ROW output pin select and INT
pin output active level status.
● {X 0}: INT/ROW output pin is set to ROW
driver output.
● {0, 1}: INT/ROW output pin is set to INT
output, active low.
● {1, 1}: INT/ROW output pin is set to INT
output, active high.
A0H
Dimming
set
1 1 1 0 P3
P2 P1 P0
{P3~P0}
Write only
Denes the pulse width of ROW.
● {0,0,0,0}: 1/16duty
● {0,0,0,1}: 2/16duty
● {0,0,1,0}: 3/16duty
● {0,0,1,1}: 4/16duty
● {0,1,0,0}: 5/16duty
● {0,1,0,1}: 6/16duty
● {0,1,1,0}: 7/16duty
● {0,1,1,1}: 8/16duty
● {1,0,0,0}: 9/16duty
● {1,0,0,1}: 10/16duty
● {1,0,1,0}: 11/16duty
● {1,0,1,1}: 12/16duty
● {1,1,0,0}: 13/16duty
● {1,1,0,1}: 14/16duty
● {1,1,1,0}: 15/16duty
● {1,1,1,1}: 16/16duty
EFH
Test
mode
1 1 0 1 1 0 0 1
Write only HOLTEK use only D9H
Note: If a programmed command data is not dened, the function will not be affected.