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PCA9685BS Datasheet PDF : 51 Pages
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NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
Table 3. Register summary …continued
Register # Register # D7 D6 D5 D4 D3 D2 D1 D0 Name
(decimal) (hex)
22
16
0 0 0 1 0 1 1 0 LED4_ON_L
23
17
0 0 0 1 0 1 1 1 LED4_ON_H
24
18
0 0 0 1 1 0 0 0 LED4_OFF_L
25
19
0 0 0 1 1 0 0 1 LED4_OFF_H
26
1A
0 0 0 1 1 0 1 0 LED5_ON_L
27
1B
0 0 0 1 1 0 1 1 LED5_ON_H
28
1C
0 0 0 1 1 1 0 0 LED5_OFF_L
29
1D
0 0 0 1 1 1 0 1 LED5_OFF_H
30
1E
0 0 0 1 1 1 1 0 LED6_ON_L
31
1F
0 0 0 1 1 1 1 1 LED6_ON_H
32
20
0 0 1 0 0 0 0 0 LED6_OFF_L
33
21
0 0 1 0 0 0 0 1 LED6_OFF_H
34
22
0 0 1 0 0 0 1 0 LED7_ON_L
35
23
0 0 1 0 0 0 1 1 LED7_ON_H
36
24
0 0 1 0 0 1 0 0 LED7_OFF_L
37
25
0 0 1 0 0 1 0 1 LED7_OFF_H
38
26
0 0 1 0 0 1 1 0 LED8_ON_L
39
27
0 0 1 0 0 1 1 1 LED8_ON_H
40
28
0 0 1 0 1 0 0 0 LED8_OFF_L
41
29
0 0 1 0 1 0 0 1 LED8_OFF_H
Type
Function
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
read/write
LED4 output and
brightness control byte 0
LED4 output and
brightness control byte 1
LED4 output and
brightness control byte 2
LED4 output and
brightness control byte 3
LED5 output and
brightness control byte 0
LED5 output and
brightness control byte 1
LED5 output and
brightness control byte 2
LED5 output and
brightness control byte 3
LED6 output and
brightness control byte 0
LED6 output and
brightness control byte 1
LED6 output and
brightness control byte 2
LED6 output and
brightness control byte 3
LED7 output and
brightness control byte 0
LED7 output and
brightness control byte 1
LED7 output and
brightness control byte 2
LED7 output and
brightness control byte 3
LED8 output and
brightness control byte 0
LED8 output and
brightness control byte 1
LED8 output and
brightness control byte 2
LED8 output and
brightness control byte 3
PCA9685
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 2 September 2010
© NXP B.V. 2010. All rights reserved.
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