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9532

16-bit I²C LED dimmer

Philips Electronics 

Philips Semiconductors

16-bit I2C LED dimmer

Product data

PCA9532

BLOCK DIAGRAM

PCA9532

SCL

SDA

INPUT

FILTERS

A2 A1 A0

I2C-BUS

CONTROL

INPUT

REGISTER

LED SELECT (LSx)

REGISTER

VDD

RESET

VSS

POWER-ON

RESET

OSCILLATOR

PRESCALER 0

REGISTER

PRESCALER 1

REGISTER

0

1

PWM0

REGISTER

PWM1

REGISTER

BLINK0

BLINK1

NOTE: ONLY ONE I/O SHOWN FOR CLARITY

Figure 3. Block diagram

LEDx

SW02045

2003 May 02

4

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