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PCA9553TK/02 Datasheet(PDF) 3 Page - NXP Semiconductors

Part # PCA9553TK/02
Description  4-bit I2C-bus LED driver with programmable blink rates
PDF  26 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA9553TK/02 Datasheet(HTML) 3 Page - NXP Semiconductors

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PCA9553_6
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 06 — 29 December 2008
3 of 26
NXP Semiconductors
PCA9553
4-bit I2C-bus LED driver with programmable blink rates
5.
Block diagram
Only one I/O shown for clarity.
Fig 1.
Block diagram
002aad745
I2C-BUS
CONTROL
INPUT
FILTERS
PCA9553
POWER-ON
RESET
SCL
SDA
VDD
VSS
LEDn
OSCILLATOR
PRESCALER 1
REGISTER
PRESCALER 0
REGISTER
PWM1
REGISTER
PWM0
REGISTER
INPUT
REGISTER
LED SELECT (LSn)
REGISTER
BLINK0
BLINK1
0
1



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