SGM4551,PDF数据表下载

SGM4551 pdf资料下载This dual bidirectional I2C and SMBus voltage-level translator, with an enable (EN) input, is operational from 1.2V to 3.3V VREF1 and 1.8V to 5.5V VREF2. The SGM4551 allows bidirectional voltage translation between 1.2V and 5V, without the use of a direction pin. The low ON-state resistance (RON) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is on, and the SCL1 and SDA1 I/Os are connected to the SCL2 and SDA2 I/Os, respectively, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports. In I2C applications, the bus capacitance limit of 400pF restricts the number of devices and bus length. Using the SGM4551 enables the system designer to isolate two halves of a bus; thus, more I2C devices or longer trace length can be accommodated. SGM4551YN8G/TRDatasheet pdf资料数据表下载