pca9685 NXP Semiconductors, pca9685 Datasheet - Page 10

• Manufacturer Part Number: pca9685
• Description: 16-channel, 12-bit Pwm Fm+ I 2c-bus Led Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 3.
PCA9685_1
Product data sheet
Register
#
(decimal)
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Register summary
Register
# (hex)
16
17
18
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
27
28
29
D7 D6 D5 D4 D3 D2 D1 D0 Name
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
…continued
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
Rev. 01 — 24 July 2008
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
16-channel, 12-bit PWM Fm+ I
LED4_ON_L
LED4_ON_H
LED4_OFF_L
LED4_OFF_H
LED5_ON_L
LED5_ON_H
LED5_OFF_L
LED5_OFF_H
LED6_ON_L
LED6_ON_H
LED6_OFF_L
LED6_OFF_H
LED7_ON_L
LED7_ON_H
LED7_OFF_L
LED7_OFF_H
LED8_ON_L
LED8_ON_H
LED8_OFF_L
LED8_OFF_H
Type
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
Function
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
2
C-bus LED controller
PCA9685
© NXP B.V. 2008. All rights reserved.
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