PCA9543A Ver la hoja de datos (PDF) - Philips Electronics
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PCA9543A Datasheet PDF : 24 Pages
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Philips Semiconductors
PCA9543A
2-channel I2C switch with interrupt logic and reset
8.5 Bus transactions
Data is transmitted to the PCA9543A control register using the Write mode as shown in
Figure 11.
slave address
control register
SDA S 1 1 1 0 0 A1 A0 0 A X X X X X X B1 B0 A P
START condition
R/W acknowledge
from slave
acknowledge
from slave
STOP condition
002aab182
Fig 11. Write control register
Data is read from PCA9543A using the Read mode as shown in Figure 12.
slave address
control register
last byte
SDA S 1 1 1 0 0 A1 A0 1 A X X INT1 INT0 X X B1 B0 NA P
START condition
Fig 12. Read control register
R/W acknowledge
from slave
no acknowledge
from master
STOP condition
002aab183
9397 750 14316
Product data sheet
Rev. 03 — 21 March 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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