pca9545ad NXP Semiconductors, pca9545ad Datasheet - Page 18

• Manufacturer Part Number: pca9545ad
• Description: 4-channel I2c Switch With Interrupt Logic And Reset
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA9545A_45B_45C_6
Product data sheet
Fig 17. Definition of timing on the I
Fig 18. Definition of RESET timing
Fig 19. 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. 06 — 19 March 2007
t
t
HIGH
SU;DAT
t
f
1
/f
bit 6
(A6)
SCL
4-channel I
t
f
t
HD;DAT
t
SU;DAT
(R/W)
bit 0
2
C-bus switch with interrupt logic and reset
t
VD;DAT
acknowledge
PCA9545A/45B/45C
Sr
(A)
50 %
t
SU;STA
t
HD;STA
t
VD;ACK
ACK or read cycle
condition
t
rst
STOP
(P)
t
50 %
w(rst)L
t
SU;STO
002aab175
t
002aac549
SP
t
SU;STO
© NXP B.V. 2007. All rights reserved.
002aaa986
P
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