PCA9548AD(2009) View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

PCA9548AD
(Rev.:2009)

8-channel I2C-bus switch with reset

NXP Semiconductors. 

NXP Semiconductors

PCA9548A

8-channel I2C-bus switch with reset

SDA

tBUF

SCL

tr

tLOW

tHD;STA

P

S

tHD;DAT

tf

tHIGH

tSU;DAT

Fig 15. Definition of timing on the I2C-bus

START

SCL

SDA

30 %

RESET 50 %

tREC;STA

Fig 16. Definition of RESET timing

tHD;STA

tSP

tSU;STA

Sr

tSU;STO

P

002aaa986

ACK or read cycle

trst

50 %

50 %

tw(rst)L

002aac549

protocol

START

condition

(S)

bit 7

MSB

(A7)

bit 6

(A6)

SCL

SDA

tSU;STA

tBUF

tLOW tHIGH

1/fSCL

tr

tf

bit 0 acknowledge

(R/W)

(A)

STOP

condition

(P)

tHD;STA

Fig 17. I2C-bus timing diagram

tSU;DAT tHD;DAT

tVD;DAT

tVD;ACK

tSU;STO

002aab175

PCA9548A_3

Product data sheet

Rev. 03 — 7 July 2009

© NXP B.V. 2009. All rights reserved.

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