I'm working on a nixie clock based on a STM32L476RG microcontroller and HV5530 chips. The microcontroller uses 3.3 V logic while the HV5530 really needs 12 V logic, which is a pain to implement. There are buffer ICs that raise the level from 3.3 V to 5 V, but I was unable to find any that works with 12 V. I experimented with a circuit based on the LM339 with a reference voltage of 0.6 V generated with a forward biased diode and pullup resistors to 12 V. It works, but I prefer to use a single chip. I've spent hours online trying to find a chip that does this, but none comply with 12 V output. I looked for both open drain outputs or push pull outputs without success.
Is there a single chip that does 4 channel, one way shifting from 3.3 V to 12 V?