Data Sheet

PCA9685 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
Product data sheet Rev. 3 — 2 September 2010 10 of 51
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I
2
C-bus LED controller
22 16 0 0 0 1 0 1 1 0 LED4_ON_L read/write LED4 output and
brightness control byte 0
23 17 0 0 0 1 0 1 1 1 LED4_ON_H read/write LED4 output and
brightness control byte 1
24 18 0 0 0 1 1 0 0 0 LED4_OFF_L read/write LED4 output and
brightness control byte 2
25 19 0 0 0 1 1 0 0 1 LED4_OFF_H read/write LED4 output and
brightness control byte 3
26 1A 0 0 0 1 1 0 1 0 LED5_ON_L read/write LED5 output and
brightness control byte 0
27 1B 0 0 0 1 1 0 1 1 LED5_ON_H read/write LED5 output and
brightness control byte 1
28 1C 0 0 0 1 1 1 0 0 LED5_OFF_L read/write LED5 output and
brightness control byte 2
29 1D 0 0 0 1 1 1 0 1 LED5_OFF_H read/write LED5 output and
brightness control byte 3
30 1E 0 0 0 1 1 1 1 0 LED6_ON_L read/write LED6 output and
brightness control byte 0
31 1F 0 0 0 1 1 1 1 1 LED6_ON_H read/write LED6 output and
brightness control byte 1
32 20 0 0 1 0 0 0 0 0 LED6_OFF_L read/write LED6 output and
brightness control byte 2
33 21 0 0 1 0 0 0 0 1 LED6_OFF_H read/write LED6 output and
brightness control byte 3
34 22 0 0 1 0 0 0 1 0 LED7_ON_L read/write LED7 output and
brightness control byte 0
35 23 0 0 1 0 0 0 1 1 LED7_ON_H read/write LED7 output and
brightness control byte 1
36 24 0 0 1 0 0 1 0 0 LED7_OFF_L read/write LED7 output and
brightness control byte 2
37 25 0 0 1 0 0 1 0 1 LED7_OFF_H read/write LED7 output and
brightness control byte 3
38 26 0 0 1 0 0 1 1 0 LED8_ON_L read/write LED8 output and
brightness control byte 0
39 27 0 0 1 0 0 1 1 1 LED8_ON_H read/write LED8 output and
brightness control byte 1
40 28 0 0 1 0 1 0 0 0 LED8_OFF_L read/write LED8 output and
brightness control byte 2
41 29 0 0 1 0 1 0 0 1 LED8_OFF_H read/write LED8 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