产品概述
The TCA9548APWR is an eight-channel Bidirectional Translating Switch can be controlLED through the I2C bus. The SCL/SDA upstream pair fans out to eight downstream pairs or channels. Any individual SCn/SDn channel or combination of channels can be selected, determined by the contents of the programmable control register. The system master can reset the TCA9548A in the event of a time-out or other improper operation by asserting a low in the RESET input. Similarly, the power-on reset deselects all channels and initializes the I2C/SMBus state machine. Asserting RESET causes the same reset and initialization to occur without powering down the part. The pass gates of the switches are constructed so that the VCC pin can be used to limit the maximum high voltage, whICh is passed by the TCA9548A. Limiting the maximum high voltage allows the use of different bus voltages on each pair, so that 1.8 or 2.5 or 3.3V parts can communicate with 5V parts, without any additional protection.
Active-Low Reset Input
Power up with all switch channels deselected
Low Ron switches
No glitch on power-up
Supports hot insertion
Low standby current consumption
5V Tolerant inputs
0 to 400kHz Clock frequency
Latch-up performance exceeds 100mA per JESD 78, class II
Green product and no Sb/Br
应用
通信与网络
产品信息
芯片接口类型: I2C, SMBus 接口应用: 工厂自动化, 与I2C从地址冲突, 路由器, 服务器产品 电源电压最小值: 1.65V 电源电压最大值: 5.5V 接口封装类型: TSSOP 针脚数: 24引脚 工作温度最小值: -40°C 工作温度最高值: 85°C 产品范围: - 汽车质量标准: - MSL: MSL 1 -无限制