PCA8575D 查看數據表（PDF） - Philips Electronics
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PCA8575D Datasheet PDF : 30 Pages
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NXP Semiconductors
PCA8575
Remote 16-bit I/O expander for I2C-bus with interrupt
protocol
START
condition
(S)
bit 7
MSB
(A7)
bit 6
(A6)
SCL
SDA
tSU;STA
tBUF
tLOW tHIGH
1/fSCL
tr
tf
bit 0 acknowledge
(R/W)
(A)
STOP
condition
(P)
tHD;STA
Rise and fall times refer to VIL and VIH.
Fig 21. I2C-bus timing diagram
tSU;DAT tHD;DAT
tVD;DAT
tVD;ACK
tSU;STO
002aab175
PCA8575_1
Objective data sheet
Rev. 01 — 30 November 2006
© NXP B.V. 2006. All rights reserved.
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