The KS8721CL is or was a PHY for 10BASE-T, 100BASE-TX and 100BASEFX, which STMicroelectronics does not have in its portfolio. However, maybe one of the users in the community has a recommendation for you.
Good luck!
/Peter
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Good luck!
/Peter
In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
You are asking for alternates, but have not named a single requirement and have not even told what exactly you mean by "alternate". With such amount of information I can recommend DP83561.