PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
11 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
42
2A
00101010
LED9_ON_L
read/write
LED9 output and
brightness control byte 0
43
2B
00101011
LED9_ON_H
read/write
LED9 output and
brightness control byte 1
44
2C
00101100
LED9_OFF_L
read/write
LED9 output and
brightness control byte 2
45
2D
00101101
LED9_OFF_H
read/write
LED9 output and
brightness control byte 3
46
2E
00101110
LED10_ON_L
read/write
LED10 output and
brightness control byte 0
47
2F
00101111
LED10_ON_H
read/write
LED10 output and
brightness control byte 1
48
30
00110000
LED10_OFF_L
read/write
LED10 output and
brightness control byte 2
49
31
00110001
LED10_OFF_H
read/write
LED10 output and
brightness control byte 3
50
32
00110010
LED11_ON_L
read/write
LED11 output and
brightness control byte 0
51
33
00110011
LED11_ON_H
read/write
LED11 output and
brightness control byte 1
52
34
00110100
LED11_OFF_L
read/write
LED11 output and
brightness control byte 2
53
35
00110101
LED11_OFF_H
read/write
LED11 output and
brightness control byte 3
54
36
00110110
LED12_ON_L
read/write
LED12 output and
brightness control byte 0
55
37
00110111
LED12_ON_H
read/write
LED12 output and
brightness control byte 1
56
38
00111000
LED12_OFF_L
read/write
LED12 output and
brightness control byte 2
57
39
00111001
LED12_OFF_H
read/write
LED12 output and
brightness control byte 3
58
3A
00111010
LED13_ON_L
read/write
LED13 output and
brightness control byte 0
59
3B
00111011
LED13_ON_H
read/write
LED13 output and
brightness control byte 1
60
3C
00111100
LED13_OFF_L
read/write
LED13 output and
brightness control byte 2
61
3D
00111101
LED13_OFF_H
read/write
LED13 output and
brightness control byte 3
Table 3.
Register summary …continued
Register
#
(decimal)
Register
# (hex)
D7 D6 D5 D4 D3 D2 D1 D0 Name
Type
Function