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PCA9550D Datasheet(PDF) 3 Page - NXP Semiconductors

Part # PCA9550D
Description  2-bit I2C LED driver with programmable blink rates
PDF  17 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9550D Datasheet(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors
Product data
PCA9550
2-bit I2C LED driver with programmable blink rates
2003 May 02
3
BLOCK DIAGRAM
PWM0
REGISTER
PWM1
REGISTER
PRESCALER 0
REGISTER
PRESCALER 1
REGISTER
I2C-BUS
CONTROL
LEDx
A0
INPUT
FILTERS
SCL
SDA
OSCILLATOR
POWER-ON
RESET
VDD
VSS
SW00927
1
0
BLINK0
BLINK1
RESET
NOTE: ONLY ONE I/O SHOWN FOR CLARITY
LED SELECT (LSx)
REGISTER
INPUT
REGISTER
PCA9550
Figure 2. Block diagram



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