
NXP Semiconductors
PCA9554; PCA9554A
8-bit I2C-bus and SMBus I/O port with interrupt
SDA
tBUF
SCL
tr
tLOW
tHD;STA
P
S
tHD;DAT
tf
tHIGH
tSU;DAT
Fig 16. Definition of timing
tHD;STA
tSU;STA
Sr
tSP
tSU;STO
0.7 × VDD
0.3 × VDD
0.7 × VDD
0.3 × VDD
P
002aaa986
PCA9554_9554A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 9 — 19 March 2013
© NXP B.V. 2013. All rights reserved.
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