pca9546abs NXP Semiconductors, pca9546abs Datasheet - Page 16

• Manufacturer Part Number: pca9546abs
• Description: 4-channel I2c Switch With Reset
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PCA9546A_4
Product data sheet
Fig 15. Definition of timing on the I
Fig 16. Definition of RESET timing
Fig 17. I
SDA
SCL
Rise and fall times refer to V
2
C-bus timing diagram
P
t
BUF
RESET
protocol
SDA
SCL
SCL
SDA
S
50 %
t
SU;STA
t
t
HD;STA
BUF
condition
t
LOW
START
(S)
t
HD;STA
IL
START
and V
30 %
t
2
REC;STA
C-bus
t
t
t
LOW
r
HD;DAT
t
r
IH
.
MSB
bit 7
(A7)
t
HIGH
Rev. 04 — 29 August 2006
t
t
HIGH
SU;DAT
t
f
1
/f
bit 6
(A6)
SCL
t
f
t
HD;DAT
t
SU;DAT
(R/W)
bit 0
t
VD;DAT
acknowledge
Sr
(A)
4-channel I
50 %
t
SU;STA
t
HD;STA
t
VD;ACK
ACK or read cycle
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
condition
t
rst
STOP
(P)
t
50 %
w(rst)L
2
t
SU;STO
C-bus switch with reset
002aab175
PCA9546A
t
002aac549
SP
t
SU;STO
002aaa986
P
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