PCA9544A(2009) 데이터 시트보기 (PDF) - NXP Semiconductors.

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PCA9544A
(Rev.:2009)

4-channel I2C-bus multiplexer with interrupt logic

NXP Semiconductors. 

NXP Semiconductors

PCA9544A

4-channel I2C-bus multiplexer with interrupt logic

7.5 Bus transactions

slave address

control register

SDA S 1 1 1 0 A2 A1 A0 0 A X X X X X B2 B1 B0 A P

START condition

R/W acknowledge

from slave

Fig 12. Write control register

acknowledge

from slave

STOP condition

002aae299

slave address

control register

last byte

SDA S

1

1

1

0 A2 A1 A0 1

A

INT INT INT INT

3210

X

B2 B1 B0 NA

P

START condition

Fig 13. Read control register

R/W acknowledge

from slave

no acknowledge

from master

STOP condition

002aae300

PCA9544A_4

Product data sheet

Rev. 04 — 15 June 2009

© NXP B.V. 2009. All rights reserved.

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