
Nixie Controller v2
DanielHeEGG/Nixie-Controller-v2
Second generation universal nixie clock controller
STMicroelectronicsExtended
-40℃~+85℃ 2V~5.5V 300uA 800nA External I2C No Temperature compensation、Backup power management and battery charging、InsideSRAM/NVRAM、Power-off retention of registers SO-8 Real Time Clocks ROHS
The M41T01M6F is a real Time Clock made by STMicroelectronics in a SO-8 package with 8 pins. -40℃~+85℃ 2V~5.5V 300uA 800nA External I2C No Temperature compensation、Backup power management and battery charging、InsideSRAM/NVRAM、Power-off retention of registers SO-8 Real Time Clocks ROHS.
PCBKit's library has its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 5 are in stock at JLCPCB (part C2669632). 1 open-source board in 1 repository on GitHub use it.
The library has no symbol for this part yet.

DanielHeEGG/Nixie-Controller-v2
Second generation universal nixie clock controller
Yes. the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SO-8, with 8 pins. Its footprint is drawn on this page.
STMicroelectronics publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2669632, with 5 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the PCF8563T/5 by NXP Semiconductors, the PCF8523T/1 by NXP Semiconductors, the PCF85163T/1 by NXP Semiconductors and the DS3231MZ+TRL by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.