pca9635 NXP Semiconductors, pca9635 Datasheet - Page 4
pca9635
Manufacturer Part Number
pca9635
Description
Pca9635 16-bit Fm I2c-bus Led Driver
Manufacturer
NXP Semiconductors
Datasheet
1.PCA9635.pdf
(34 pages)
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NXP Semiconductors
5. Block diagram
PCA9635_5
Product data sheet
Fig 1. Block diagram of PCA9635
SDA
SCL
V
V
OE
DD
SS
Remark: Only one LED output shown for clarity.
PCA9635
OSCILLATOR
25 MHz
97 kHz
INPUT FILTER
POWER-ON
RESET
24.3 kHz
BRIGHTNESS
REGISTER X
CONTROL
PWM
REGISTER
GRPFREQ
A0
190 Hz
A1
Rev. 05 — 22 March 2007
A2
CONTROL
I
2
C-BUS
A3
A4
A5
REGISTER
GRPPWM
A6
'0' – permanently OFF
'1' – permanently ON
REGISTER
SELECT
STATE
LED
16-bit Fm+ I
CONTROL
MUX/
PCA9635
2
© NXP B.V. 2007. All rights reserved.
C-bus LED driver
V
DD
002aac136
LEDn
4 of 34
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