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參數資料
| 型號： | PCA9542PW |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | 2-channel I2C multiplexer and interrupt controller |
| 中文描述： | 9542 SERIES, 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO14 |
| 封裝： | 4.40 MM, PLASTIC, MO-153, SOT402-1, TSSOP-14 |
| 文件頁數： | 2/10頁 |
| 文件大小： | 74K |
| 代理商： | PCA9542PW |
Philips Semiconductors
Product specification
PCA9542
2-channel I
2
C multiplexer and interrupt controller
2
1999 Oct 07
853–2177 22486
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
3 address pins, allowing up to 8 devices on the I
2
C bus
Low on resistance
DESCRIPTION
The PCA9542 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. Two interrupt inputs, one for each of
the SCx/SDx downstream pair, are provided. One interrupt output,
which acts as an AND of the two interrupt inputs, is provided. All I/O
pins are 5 V tolerant.
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 PCA9542. 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
9
10
11
12
13
14
A0
A1
A2
INT0
SD0
SC0
V
SS
V
DD
SDA
SCL
SD1
SC1
INT1
INT
SW00475
PIN DESCRIPTION
PIN
NUMBER
1
SYMBOL
FUNCTION
A0
Address input 0
2
A1
Address input 1
3
A2
Address input 2
4
INT0
Interrupt input 0
5
SD0
Serial data 0
6
SC0
Serial clock 0
7
V
SS
INT1
Supply ground
8
Interrupt input 1
9
SD1
Serial data 1
10
SC1
Serial clock 1
11
INT
Interrupt output
12
SCL
Serial clock line
13
SDA
Serial data line
14
V
DD
Supply voltage
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
0
°
C to +70
°
C
ORDER CODE
DRAWING NUMBER
14-Pin Plastic TSSOP
PCA9542PW DH
SOT402-1
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| 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 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCA9542PWDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-channel I2C multiplexer and interrupt controller |
| PCA9543 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-channel I2C switch with interrupt logic and reset |
| PCA9543A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-channel I2C-bus switch with interrupt logic and reset |
| PCA9543A_09 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-channel I2C-bus switch with interrupt logic and reset |
| PCA9543AD | 功能描述:多路器開關 IC 2Ch I2C-Bus Switch RoHS:否 制造商:Texas Instruments 通道數量:1 開關數量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
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