SGM4551B Overview
The SGM4551B is a 2-bit, SMbus, dual, bidirectional, I2C voltage translator with the ability of enable (EN) function. For VREF1, the typical operation range is from 1.2V to 3.3V and the typical operation for VREF2 is from 1.8V to 5.5V. The signal can be transmitted bilaterally from 1.2V to 5V.