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參數(shù)資料
| 型號(hào)： | PCA9540PWDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | 2-channel I2C multiplexer |
| 中文描述： | PCA9 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO8 |
| 封裝： | 3 MM, PLASTIC, SOT-505-1, TSSOP-8 |
| 文件頁數(shù)： | 2/10頁 |
| 文件大?。?/td> | 110K |
| 代理商： | PCA9540PWDH |
Philips Semiconductors
Product specification
PCA9540
2-channel I
2
C multiplexer
2
1999 Dec 15
853–2185 22852
FEATURES
1-of-2 bi-directional translating multiplexer
Channel selection via I
2
C bus
Operating supply voltage 2.5 to 3.6 V
Operating temperature range 0
°
C to 70
°
C
Power-up with all multiplexer channels deselected
Low on resistance
DESCRIPTION
The PCA9540 is a 1-of-2 bi-directional translating multiplexer,
controlled via the I
2
C bus. The SCL/SDA upstream pair fans out to
two SCx/SDx downstream pairs, or channels. Only one SCx/SDx
channel is selected at a time, determined by the contents of the
programmable control register.
The pass gates of the multiplexer are constructed such that the V
DD
pin can be used to limit the maximum high voltage which will be
passed by the PCA9540. This allows the use of different bus
voltages on each SCx/SDx pair, so that 3.3 V parts can
communicate with 5 V parts without any additional protection.
External pull-up resistors can pull the bus up to the desired voltage
level for this channel.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
SCL
SDA
V
DD
SD0
SC1
SD1
SC0
V
SS
SW00491
PIN DESCRIPTION
PIN
NUMBER
1
SYMBOL
FUNCTION
SCL
Serial clock line
2
SDA
Serial data line
3
V
DD
SD0
Supply voltage
4
Serial data 0
5
SC0
Serial clock 0
6
V
SS
SD1
Supply ground
7
Serial data 1
8
SC1
Serial clock 1
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
0
°
C to +70
°
C
0
°
C to +70
°
C
ORDER CODE
DRAWING NUMBER
8-Pin Plastic SO
PCA9540D
SOT96-1
8-Pin Plastic TSSOP
PCA9540PW DH
SOT505-1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9540 | 2-channel I2C multiplexer |
| PCA9540D | 2-channel I2C multiplexer |
| PCA9541 | 2-to-1 I2C master selector with interrupt logic and reset |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9541 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C master selector with interrupt logic and reset |
| 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 |
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