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PCA9548APW,118 接口IC 原装
PCA9548APW,118 接口IC 原装的技术参数:
类别 |
集成电路IC 接口 -专用 |
制造商 |
NXP USA Inc. |
应用 |
转换开关 |
接口 |
12C |
I/O 通道数量 |
8 |
时钟频率 |
400kHz |
接口 |
I2C,SMBus |
电压 - 供电 |
2.3V ~ 3.6V,4.5V ~ 5.5V |
封装/外壳 |
24-TSSOP(0.173",4.40mm 宽) |
供应商器件封装 |
24-TSSOP |
安装类型 |
表面贴装型 |
基本产品编号 |
PCA9548 |
PCA9548APW,118 接口IC 原装的描述:
The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable control register. An active LOW reset input allows the PCA9548A to recover from a situation where one of the downstream I2C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I2C-bus 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 VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9548A. This allows the use of different bus voltages on each pair, so that 1.8 V or 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 6 V tolerant.
PCA9548APW,118
NXP/恩智浦
TSSOP
21+/22+
无铅/环保