NEC uPD765 (or just D765) is exactly the same chip as the 8272. NEC and Intel cross-licensed a bunch of IP back in the day. [https://forum.vcfed.org/index.php?threads/8272-fdc-to-8-drive-connections.45816/#post-557651 Source]
The 8272/µPD765 was the result of a cross-licensing deal between NEC and Intel.It was essentially NEC design. [https://classiccmp.org/mailman3/hyperkitty/list/cctalk@classiccmp.org/thread/MMWRWPGKWRVOLMUBIFQTZSCRRMF3YOXF/ Source]
[https://scarybeastsecurity.blogspot.com/2020/11/reverse-engineering-forgotten-1970s.html The decapped photos of Intel 8271, NEC D765 and Intel 8272 chips] prove that NEC D765 and Intel 8272 chips are identical.