參數資料
型號: PCA9511A
廠商: NXP Semiconductors N.V.
英文描述: Hot swappable I2C-bus and SMBus bus buffer
中文描述: 熱插拔I2C總線和SMBus總線緩沖器
文件頁數: 10/23頁
文件大?。?/td> 144K
代理商: PCA9511A
9397 750 13269
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 15 August 2005
10 of 23
Philips Semiconductors
PCA9511A
Hot swappable I
2
C-bus and SMBus bus buffer
Fig 8.
Hot swapping multiple I/O cards into a backplane using the PCA9511A in a PCI system
002aab585
R4
10 k
C1
0.01
μ
F
SDAOUT
SCLOUT
READY
V
CC
GND
R5
10 k
R6
10 k
ENABLE
SDAIN
SCLIN
CARD1_SDA
CARD1_SCL
S
I/O PERIPHERAL CARD 1
BACKPLANE
CONNECTOR
R8
10 k
C3
0.01
μ
F
SDAOUT
SCLOUT
READY
V
CC
GND
R9
10 k
R10
10 k
ENABLE
SDAIN
SCLIN
CARD2_SDA
CARD2_SCL
S
I/O PERIPHERAL CARD 2
R2
10 k
R1
10 k
V
CC
BACKPLANE
SDA
SCL
C4
0.01
μ
F
C2
0.01
μ
F
Remark:
See Application Note AN255, ‘I2C repeaters, hubs, and expanders’for more information on other devices better
optimized for long distance transmission of the I
2
C-bus or SMBus.
Fig 9.
Repeater/bus extender application using the PCA9511A
002aab586
R7
10 k
C2
0.01
μ
F
SDAOUT
SCLOUT
READY
V
CC
GND
ENABLE
SDAIN
SCLIN
R8
10 k
V
CC
SDA1
SCL1
to other
System 2
devices
I
2
C-bus System 2
R6
10 k
R4
10 k
C1
0.01
μ
F
SDAOUT
SCLOUT
READY
GND
V
CC
ENABLE
SDAIN
SCLIN
R1
10 k
V
CC
= 5 V
SDA1
SCL1
to other
System 1
devices
I
2
C-bus System 1
R5
10 k
long
distance
bus
R3
1 k
R2
1 k
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