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PCA9952 Datasheet(PDF) 13 Page - NXP Semiconductors

Part # PCA9952
Description  16-channel Fm I2C-bus 57 mA constant current LED driver
PDF  48 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9952 Datasheet(HTML) 13 Page - NXP Semiconductors

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PCA9952_PCA9955
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 7.1 — 29 June 2015
13 of 48
NXP Semiconductors
PCA9952; PCA9955
16-channel Fm+ I2C-bus 57 mA constant current LED driver
[1]
Remark: Writing to registers marked ‘not used’ will return a NACK.
[2]
Remark: Writing to registers marked ‘reserved’ will not change any functionality in the chip.
27h
010
0111
IREF5
read/write
output gain control register 5
28h
010
1000
IREF6
read/write
output gain control register 6
29h
010
1001
IREF7
read/write
output gain control register 7
2Ah
010
1010
IREF8
read/write
output gain control register 8
2Bh
010
1011
IREF9
read/write
output gain control register 9
2Ch
010
1100
IREF10
read/write
output gain control register 10
2Dh
010
1101
IREF11
read/write
output gain control register 11
2Eh
010
1110
IREF12
read/write
output gain control register 12
2Fh
010
1111
IREF13
read/write
output gain control register 13
30h
011
0000
IREF14
read/write
output gain control register 14
31h
011
0001
IREF15
read/write
output gain control register 15
32h to 39h
---
----
-
read/write
not used[1]
3Ah
011
1010
OFFSET
read/write
Offset/delay on LEDn outputs
3Bh
011
1011
SUBADR1
read/write
I2C-bus subaddress 1
3Ch
011
1100
SUBADR2
read/write
I2C-bus subaddress 2
3Dh
011
1101
SUBADR3
read/write
I2C-bus subaddress 3
3Eh
011
1110
ALLCALLADR
read/write
All Call I2C-bus address
3Fh
011
1111
RESERVED1
read/write
reserved[2]
40h
100
0000
RESERVED2
read only
reserved[2]
41h
100
0001
RESERVED3
read only
reserved[2]
42h
100
0010
PWMALL
write only
brightness control for all LEDn
43h
100
0011
IREFALL
write only
output gain control for all registers
IREF0 to IREF15
44h
100
0100
EFLAG0
read only
output error flag 0
45h
100
0101
EFLAG1
read only
output error flag 1
46h to 7Fh
---
----
-
read only
not used[1]
Table 6.
Register summary[1] …continued
Register
number
(hexadecimal)
D6
D5
D4
D3
D2
D1
D0
Name
Type
Function



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