Question about part number

To all of you..

I need your opinion about these part numbers. Do you have any idea what they are and where can I find the datasheet?

MC
908RE2M
CTML04S0J

MY8021A
K0605AH

Thank you.

I think these part doesn't exist.

usually it shows up in google.

I guess this is a non-official Motorola IC..Custom design or a similar thing..
Produced in Malaysia in 1980 wk21