Microchip Tehcnology Inc. had acquired some 8051 products with the acquisition of Silicon Storage Technology (SST) in 2010.
They include RB, RC, and RD devices, that are compatible with some of the EOL NXP parts including 89V and 89LV. They are hardware compatible, but not bootloader compatible.
See cross reference here:
http://microchip-dev/pagehandler/en-us/family/8051legacy/products/home.html
There are others in the family that are not 100% compatible also on this page under the family tabs, but may be close enough for your needs.
Regards, Doc Random
They include RB, RC, and RD devices, that are compatible with some of the EOL NXP parts including 89V and 89LV. They are hardware compatible, but not bootloader compatible.
See cross reference here:
http://microchip-dev/pagehandler/en-us/family/8051legacy/products/home.html
There are others in the family that are not 100% compatible also on this page under the family tabs, but may be close enough for your needs.
Regards, Doc Random