參數(shù)資料
型號(hào)： PCA9543
廠商： NXP Semiconductors N.V.
英文描述： 2-channel I2C switch with interrupt logic and reset
中文描述： 2通道的I2C中斷邏輯開(kāi)關(guān)和復(fù)位
文件頁(yè)數(shù)： 2/15頁(yè)
文件大?。?/td> 120K
代理商： PCA9543
Philips Semiconductors
Product data sheet
PCA9543
2-channel I
2
C switch with interrupt logic and reset
2
2004 Oct 01
FEATURES
1-of-2 bi-directional translating switches
I
2
C interface logic; compatible with SMBus standards
2 Active LOW Interrupt Inputs
Active LOW Interrupt Output
Active LOW Reset Input
2 address pins allowing up to 4 devices on the I
2
C-bus
Channel selection via I
2
C-bus, in any combination
Power up with all switch channels deselected
Low Rds
ON
switches
Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and
5 V buses
No glitch on power-up
Supports hot insertion
Low stand-by current
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant Inputs
0 kHz to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114,
150 V MM per JESD22-A115 and 1000 V per JESD22-C101
Latchup testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
Packages offered: SO14, TSSOP14
DESCRIPTION
The PCA9543 is a bi-directional translating switch, controlled by the
I
2
C-bus. The SCL/SDA upstream pair fans out to two downstream
pairs, or channels. Any individual SCx/SDx channels or combination
of channels can be selected, determined by the contents of the
programmable control register. Two interrupt inputs, INT0 to INT3,
one for each of the downstream pairs, are provided. One interrupt
output INT, which acts as an AND of the two interrupt inputs, is
provided.
An active-LOW reset input allows the PCA9543 to recover from a
situation where one of the downstream I
2
C-buses is stuck in a LOW
state. Pulling the RESET pin LOW resets the I
2
C state machine and
causes all the channels to be deselected, as does the internal power
on reset function.
The pass gates of the switches are constructed such that the V
DD
pin can be used to limit the maximum high voltage which will be
passed by the PCA9543. This allows the use of different bus
voltages on each SCx/SDx pair, so that 1.8 V, 2.5 V, or 3.3 V parts
can communicate with 5 V parts without any additional protection.
External pull-up resistors pull the bus up to the desired voltage level
for each channel. All I/O pins are 5 V tolerant.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A0
A1
RESET
INT0
SD0
SC0
V
SS
V
DD
SDA
SCL
SD1
SC1
INT1
INT
SW00803
Figure 1. Pin configuration
PIN DESCRIPTION
PIN
NUMBER
1
SYMBOL
FUNCTION
A0
Address input 0
2
A1
Address input 1
3
RESET
Active LOW reset input
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
–40
°
C to +85
°
C
–40
°
C to +85
°
C
ORDER CODE
DRAWING NUMBER
14-Pin Plastic SO
PCA9543D
SOT108-1
14-Pin Plastic TSSOP
Standard packing quantities and other packaging data are available at www.standardproducts.philips.com/packaging.
PCA9543PW
SOT402-1
相關(guān)PDF資料
PDF描述
PCA9543D 2-channel I2C switch with interrupt logic and reset
PCA9543PW 2-channel I2C switch with interrupt logic and reset
PCA9544D BUS CONTROLLER
PCA9561D EEPROM
PCA9561PW EEPROM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(kāi)關(guān) IC 2Ch I2C-Bus Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
PCA9543AD,112 功能描述:多路器開(kāi)關(guān) IC 2-CH I2C SWITCH RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
PCA9543AD,118 功能描述:多路器開(kāi)關(guān) IC I2C SWITCH 2CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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