Details

Infrared remote controller chip which has RC5 protocol, normally found in most hand held remote control. SMD 28 pin package.

In this datasheet link of ZIP file you will find details of different ICs.
They all are the same function wise and pin wise.
Therefore all these ICs are same 28 pin ICs and works with replacing each other.
SAA3010 = HT6230 = PT2210