Datasheet

Rev. 1.10 2 May 16, 2011 Rev. 1.10 3 May 16, 2011
HT16K33
RAM Mapping 16*8 LED Controller Driver with keyscan
Block Diagram
Row driver output
Interrupt function output
Key data input
Device address data
input
Display RAM
16*8bits
Timing
generator
I2C
Controller
COM0/AD
COM1/KS0
COM2/KS1
COM3/KS2
ROW0/A2
VDD
VSS
SDA
SCL
Power_on
reset
COM5
COM6
COM7
COM4
POR
POR
ROW1/A1
ROW12/K10
ROW15/K13/ INT
Key data
RAM
13*3bits
POR
ROW13/K11
ROW14/K12
ROW2/A0
ROW3/K1
Internal
RC
Oscillator
Common scan output
Key scan output
Device address source
output
A[2:0]
POR
POR
POR
POR