PCA9515DP 接口-信号缓冲器、中继器

PCA9515DP  接口-信号缓冲器、中继器

I2C-bus Repeater.

PCA9515DP  接口-信号缓冲器、中继器  的技术参数：

PCA9515DP  接口-信号缓冲器、中继器  的描述：

PCA9515是一款BiCMOS集成电路，主要用于I2C总线和SMBus系统应用。

在保留I2C总线系统所有工作模式和功能的同时，它允许通过缓冲数据(SDAn)和时钟(SCLn)线路以允许扩展I2C总线，从而可使用两条400 pF的总线。

The PCA9515 is a BiCMOS integrated circuit intended for application in I2C-bus and SMBus systems. While retaining all the operating modes and features of the I2C-bus system, it permits extension of the I2C-bus by buffering both the data (SDAn) and the clock (SCLn) lines, thus enabling two buses of 400 pF.

400 pF的I2C总线电容极限会限制器件数和总线长度

PCA9515A具有2.3 V至3.6 V的更大电压范围且可用于更低电压电源限制的应用中

The I2C-bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9515 enables the system designer to isolate two halves of a bus, thus more devices or longer length can be accommodated. It can also be used to run two buses, one at 5 V and the other at 3.3 V or a 400 kHz and 100 kHz bus, where the 100 kHz bus is isolated when 400 kHz operation of the other is required.