Datasheet

Rev. 1.10 36 May 16, 2011 Rev. 1.10 37 May 16, 2011
HT16K33
RAM Mapping 16*8 LED Controller Driver with keyscan
● 8*8 display application: (No INT pin function and 8*3 key function)
LED matrix
SCL
SDA
VDD
VSS
MCU
VDD
VSS
HT16K33
VSS
0.1uF
COM0
COM1/KS0
COM2/KS1
COM3/KS2
COM4
COM5
COM6
COM7
VDD
Row7/K8/INT
Row6/K7
Row5/K6
Row4/K5
Row3/K4
Row2/K3
Row1/K2
Row0/K1
39KΩ*8
=
R1
R2
R3
R4
R5
R6
R7
R8
4.7KΩ4.7KΩ
Note: 1. The I
2
C slave address (A0~A2) =000.
2. If the key input is not used for LED display, the resistor in series with the key input (R1~R8) can be omitted.
● 7*8 display application: (INT pin function and 7*3 key function)
LED matrix
SCL
SDA
VDD
VSS
MCU
VDD
VSS
HT16K33
0.1uF
COM0
COM1/KS0
COM2/KS1
COM3/KS2
COM4
COM5
COM6
COM7
Row7/K8/INT
Row6/K7
Row5/K6
Row4/K5
Row3/K4
Row2/K3
Row1/K2
Row0/K1
39KΩ*7
=
VSS
VDD
R1
R2
R3
R4
R5
R6
R7
4.7KΩ4.7KΩ
Note: 1. The I
2
C slave address (A0~A2) =000.
2. If the key input is not used for LED display, the resistor in series with the key input (R1~R7) can be omitted.