Outside IP: aaa.bbb.ccc.ddd
Inside IP: www.xxx.yyy.zzz
Port: pppp
Identifier for access-list: NAME

This is a simple one to one NAT example. Traffic will go from aaa.bbb.ccc.ddd port pppp to www.xxx.yyy.zzz.

c-asa01(config)# static (inside,outside) aaa.bbb.ccc.ddd www.xxx.yyy.zzz
c-asa01(config)# access-list NAME permit tcp any host aaa.bbb.ccc.ddd eq pppp
c-asa01(config)# access-group NAME in interface outside

Or if you want to NAT and PAT:

Outside IP: aaa.bbb.ccc.ddd
Inside IP: www.xxx.yyy.zzz
Outside Port: pppp
Inside Port: qqqq
Identifier for access-list: NAME

c-asa01(config)# static (inside,outside) tcp aaa.bbb.ccc.ddd pppp www.xxx.yyy.zzz qqqq
c-asa01(config)# access-list NAME permit tcp any host aaa.bbb.ccc.ddd eq pppp
c-asa01(config)# access-group NAME in interface outside