Found 4 alternatives for TLK2501IRCPG4 by Rochester Electronics, LLC. Interface Serializers Deserializers — 64-PowerVFQFP.
IC TRNSCVR 1.5-2.5GBPS 64-HVQFP
IC TRANSCR 0.6-1.5GBPS 64HVQFP
IC TRNSCVR 1.6-2.5GBPS 64-HVQFP