PCA9548A(2009) 데이터 시트보기 (PDF) - NXP Semiconductors.

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PCA9548A
(Rev.:2009)

8-channel I2C-bus switch with reset

NXP Semiconductors. 

NXP Semiconductors

PCA9548A

8-channel I2C-bus switch with reset

7.5 Bus transactions

Data is transmitted to the PCA9548A control register using the Write mode as shown in

Figure 12.

slave address

control register

SDA S 1 1 1 0 A2 A1 A0 0 A B7 B6 B5 B4 B3 B2 B1 B0 A P

START condition

R/W acknowledge

from slave

acknowledge

from slave

STOP condition

002aab205

Fig 12. Write control register

Data is read from PCA9548A using the Read mode as shown in Figure 13.

slave address

control register

last byte

SDA S 1 1 1 0 A2 A1 A0 1 A B7 B6 B5 B4 B3 B2 B1 B0 NA P

START condition

Fig 13. Read control register

R/W acknowledge

from slave

no acknowledge

from master

STOP condition

002aab206

PCA9548A_3

Product data sheet

Rev. 03 — 7 July 2009

© NXP B.V. 2009. All rights reserved.

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