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參數(shù)資料
| 型號： | PCA9541 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 2-to-1 I2C master selector with interrupt logic and reset |
| 中文描述： | 2比1的I2C主機選擇與中斷邏輯和復(fù)位 |
| 文件頁數(shù)： | 19/30頁 |
| 文件大?。?/td> | 279K |
| 代理商： | PCA9541 |
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Philips Semiconductors
Product data sheet
PCA9541
2-to-1 I
2
C demultiplexer with interrupt logic and reset
2004 Oct 01
18
TYPICAL APPLICATION
PCA9541
SD1
SC1
A1
A0
SDA_MST0
SCL_MST0
RESET
V
DD
3.3 V
MASTER 0
SW02010
SDA0
SCL0
INT0
INT_IN
3.3 V
MASTER 1
RESET0
INT0
SDA1
SCL1
RESET1
INT1
A2
SDA_MST1
SCL_MST1
INT1
V
SS
SLAVE 2
SLAVE 1
SLAVE 3
INT
V
SS
V
SS
V
DD
V
DD
SDA
SCL
SDA
SCL
SDA
SCL
SLAVE CARD
A3
Figure 16. Typical application
SPECIFIC APPLICATIONS
The PCA9541 is a 2-to-1 I
2
C master selector designed for dual
master, high reliability I
2
C applications, where continuous
maintenance and control monitoring is required even if one master
fails or its controller card is removed for maintenance. The PCA9541
can also be used in other applications, such as where masters
share the same resource but cannot share the same bus, as a
gatekeeper multiplexer in long single bus applications or as a bus
initialization/recovery device.
HIGH RELIABILITY SYSTEMS
In a typical multi-point application, shown in Figure 17, the two
masters (e.g., primary and back-up) are located on separate
I
2
C-buses that connect to multiple downstream I
2
C-bus slave
cards/devices via a PCA9541/01 for non-hot swap applications or
the PCA9541/02 for hot swap applications to provide high reliability
of the I
2
C-bus.
SR02462
SCL0
SDA0
SCL1
SDA1
M
M
P
P
P
P
P
P
P
P
Figure 17. High Reliability Backplane Application
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9542 | 2-channel IIC multiplexer and interrupt controller(2通道IIC多路復(fù)用器和中斷控制器) |
| PCA9542PW | 2-channel I2C multiplexer and interrupt controller |
| PCA9542PWDH | 2-channel I2C multiplexer and interrupt controller |
| PCA9543 | 2-channel I2C switch with interrupt logic and reset |
| PCA9543D | 2-channel I2C switch with interrupt logic and reset |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9541_08 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541_09 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541ABS/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541ABS/01,118 | 功能描述:I2C 接口集成電路 2-to-1 I2C-bus master selector RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
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