- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367809 > PCA9543 (NXP Semiconductors N.V.) 2-channel I2C switch with interrupt logic and reset PDF資料下載
參數(shù)資料
| 型號： | 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中斷邏輯開關(guān)和復(fù)位 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大小： | 120K |
| 代理商： | PCA9543 |
Philips Semiconductors
Product data sheet
PCA9543
2-channel I
2
C switch with interrupt logic and reset
2004 Oct 01
5
VOLTAGE TRANSLATION
The pass gate transistors of the PCA9543 are constructed such that
the V
DD
voltage can be used to limit the maximum voltage that will
be passed from one I
2
C-bus to another.
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
V
pass
vs. V
DD
2.5
3.0
3.5
4.0
4.5
5.0
5.5
V
pass
V
DD
MINIMUM
TYPICAL
MAXIMUM
SW00820
2.0
Figure 5. V
pass
voltage
Figure 5 shows the voltage characteristics of the pass gate
transistors (note that the graph was generated using the data
specified in the DC Characteristics section of this datasheet). In
order for the PCA9543 to act as a voltage translator, the V
pass
voltage should be equal to, or lower than the lowest bus voltage. For
example, if the main bus was running at 5 V, and the downstream
buses were 3.3 V and 2.7 V, then V
pass
should be equal to or below
2.7 V to effectively clamp the downstream bus voltages. Looking at
Figure 5, we see that V
pass
(max.) will be at 2.7 V when the
PCA9543 supply voltage is 3.5 V or lower so the PCA9543 supply
voltage could be set to 3.3 V. Pull-up resistors can then be used to
bring the bus voltages to their appropriate levels (see Figure 12).
More Information can be found in Application Note AN262 PCA954X
family of I
2
C/SMBus multiplexers and switches.
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:多路器開關(guān) IC 2Ch I2C-Bus Switch RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)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 |
| PCA9543AD,112 | 功能描述:多路器開關(guān) IC 2-CH I2C SWITCH RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)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 |
| PCA9543AD,118 | 功能描述:多路器開關(guān) IC I2C SWITCH 2CH RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。