I want to know if there is any IC available that can decode an IR remote to its different pinouts or I have only option to program a microcontroller to achieve it.
Seemingly you expect something which has 5 separate outputs which can be activated one at a time by pressing buttons 1...5 on an IR remote controller.
The others have tried to say that this is possible, in theory such IC can exist. But you must have a remote controller designed just for that IC. Generally the codes used in remote control systems are complex and everyone is different. The code contains some identification of "who is sending", the wrong sender is ignored. Then there's the code of the wanted function, maybe only the number of the pressed button and finally some calculated redundancy data to detect and fix transmission errors. Everything can be encrypted to make 3rd party devices more difficult to make. Big entertainment electronics manufacturers such as Sony have licensed their coding systems to others. They can bill say $10000,- for the code details.
You may find an IR receiver which generates computer compatible raw serial data output from the voltage that an IR photodiode catches. But a programmed computer (=microcontroller) is needed to decode the raw data and launch the wanted operations. There's numerous "IR remote decoder" projects presented in the web. Search for them.
Finally some preprogrammed chips to decode some known IR remote coding exists. Here's a link to one story of one chip https://www.voti.nl/ir-3/index_1.html No idea is it really available and does it work. I wouldn't believe such articles if there's no direct manufacture's data available which shows the system is properly constructed.
Also chips for remote controllers exist. Again: No idea of the availability https://www.infraredremote.com/RS117.htm