Datasheet

PCA9551_8 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 08 — 31 July 2008 16 of 26
NXP Semiconductors
PCA9551
8-bit I
2
C-bus LED driver with programmable blink rates
Fig 19. Definition of RESET timing
SDA
SCL
002aac193
t
rst
50 %
30 %
50 % 50 %
50 %
t
rec(rst)
t
w(rst)
RESET
LEDn
LED off
START
t
rst
ACK or read cycle
Fig 20. Definition of timing
t
SP
t
BUF
t
HD;STA
PP S
t
LOW
t
r
t
HD;DAT
t
f
t
HIGH
t
SU;DAT
t
SU;STA
Sr
t
HD;STA
t
SU;STO
SDA
SCL
002aaa986