1. Substitution Conclusion for AT30TSE752A-SS8M-T As a direct replacement, the AT30TSE752A-SS8M-T is a highly viable candidate, though several technical differences require evaluation. Its package, interface (I2C/SMBus), temperature range, and accuracy are fully compatible with the original part, and core functions (such as programmable limits and shutdown mode) are identical. The primary differences are: 1) The resolution is reduced from 12-bit to 11-bit, changing the temperature data LSB from 0.0625°C to 0.125°C. In applications requiring high resolution to monitor minute temperature changes, this will result in a slight reduction in system accuracy or temperature control sensitivity. 2) The lower operating voltage limit is extended to 1.7V. While this is advantageous for the new design, enabling use in lower-voltage systems, it is necessary to verify whether the original circuit's supply voltage falls outside the 3V-5.5V range. 3) A programmable resolution feature has been added, providing flexibility. If the application does not rely on the extreme 12-bit resolution and the I2C address is compatible, this part can be directly substituted and may offer broader voltage adaptability.