RC Servo signal-to-step/direction IC or board

Is there an available IC, chip or board that can convert the signals in common R/C controller to 2-pin pulse-step & direction signals? I know I can program something in Arduino. If I can just use an I/C to handle that, instead of a whole NANO board, it would save space and keep my project simple.

If you can’t find the IC solution, a programmed Tiny85 is an alternative.

groundfungus:
If you can't find the IC solution, a programmed Tiny85 is an alternative.

Well that's interesting and cheap, I'll look into it. Probably better anyway - I can make it do whatever I want instead of just a driver chip.