STMicro offers a wide selection of ICs for many different applications. One of them is M4T32-BR12SH6, a Snaphat-brand IC which combines a battery and a timekeeping crystal into a single device useful for boards with constrained space requirements. We’ve had some questions recently concerning UL recognition for this device - is it UL recognized, and if so where’s the file?
Per STMicro’s documentation, this part has been recognized by Underwriters Laboratories under their Component Recognition Program and carries U.L. File Number E89556. All the related information and certification can be found on UL’s website: E89556 for STMICROELECTRONICS ASIA PACIFIC PTE LTD | UL Solutions