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PCA9535 Datasheet(PDF) 9 Page - NXP Semiconductors

Part No. PCA9535
Description  16-bit I2C and SMBus, low power I/O port with interrupt
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCA9535 Datasheet(HTML) 9 Page - NXP Semiconductors

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1
23456789
S
0
100
A2
A1
A0
1
A
A
I0.x
A
I1.x
A
I0.x
1
I1.x
P
R/W
ACKNOWLEDGE
FROM SLAVE
SCL
SDA
ACKNOWLEDGE
FROM MASTER
ACKNOWLEDGE
FROM MASTER
ACKNOWLEDGE
FROM MASTER
NON ACKNOWLEDGE
FROM MASTER
READ FROM PORT 0
DATA INTO PORT 0
READ FROM PORT 1
DATA INTO PORT 1
INT
tIR
tIV
SU01651
tph
DATA 00
DATA 10
DATA 03
DATA 12
DATA 00
DATA 01
DATA 02
DATA 03
tps
tph
tps
DATA 10
DATA 11
DATA 12
NOTES: Transfer of data can be stopped at any moment by a STOP condition. When this occurs, data present at the latest acknowledge phase is valid (output mode).
It is assumed that the command byte has previously been set to 00 (read input port port register).
Figure 10.
READ input port register — scenario 2


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