pca9685 NXP Semiconductors, pca9685 Datasheet - Page 9

• 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)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Register summary
Register
# (hex)
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
7.3 Register definitions
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
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
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
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
Rev. 01 — 24 July 2008
0
0
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
0
1
16-channel, 12-bit PWM Fm+ I
MODE1
MODE2
SUBADR1
SUBADR2
SUBADR3
ALLCALLADR
LED0_ON_L
LED0_ON_H
LED0_OFF_L
LED0_OFF_H
LED1_ON_L
LED1_ON_H
LED1_OFF_L
LED1_OFF_H
LED2_ON_L
LED2_ON_H
LED2_OFF_L
LED2_OFF_H
LED3_ON_L
LED3_ON_H
LED3_OFF_L
LED3_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
read/write
read/write
Function
Mode register 1
Mode register 2
I
I
I
LED All Call I
address
LED0 output and
brightness control byte 0
LED0 output and
brightness control byte 1
LED0 output and
brightness control byte 2
LED0 output and
brightness control byte 3
LED1 output and
brightness control byte 0
LED1 output and
brightness control byte 1
LED1 output and
brightness control byte 2
LED1 output and
brightness control byte 3
LED2 output and
brightness control byte 0
LED2 output and
brightness control byte 1
LED2 output and
brightness control byte 2
LED2 output and
brightness control byte 3
LED3 output and
brightness control byte 0
LED3 output and
brightness control byte 1
LED3 output and
brightness control byte 2
LED3 output and
brightness control byte 3
2
2
2
2
C-bus sub-address 1
C-bus sub-address 2
C-bus sub-address 3
C-bus LED controller
PCA9685
© NXP B.V. 2008. All rights reserved.
2
C-bus
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