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PCA8574ATS Datasheet(PDF) 16 Page - NXP Semiconductors

No. de pieza PCA8574ATS
Descripción Electrónicos  Remote 8-bit I/O expander for I2C-bus with interrupt
PDF  27 Pages
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Fabricante Electrónico  NXP [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA8574ATS Datasheet(HTML) 16 Page - NXP Semiconductors

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PCA8574_PCA8574A_2
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 14 May 2007
16 of 27
NXP Semiconductors
PCA8574/74A
Remote 8-bit I/O expander for I2C-bus with interrupt
Rise and fall times refer to VIL and VIH.
Fig 17. I2C-bus timing diagram
SCL
SDA
tHD;STA
tSU;DAT
tHD;DAT
tf
tBUF
tSU;STA
tLOW
tHIGH
tVD;ACK
002aab175
tSU;STO
protocol
START
condition
(S)
bit 7
MSB
(A7)
bit 6
(A6)
bit 0
(R/W)
acknowledge
(A)
STOP
condition
(P)
1/fSCL
tr
tVD;DAT



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