Don Dingee
Moderator
The latest 8051-compatible processor core from CAST delivers 69.7 times the performance of the original 8051 core at the same clock speed. The new S80251XC3 microcontroller core is based on the 16-bit 80251 design, running both the MCS-51 and MCS-251 instruction sets.
View attachment 13392
In a 40nm LP process, the S80251XC3 can run with clock speeds over 300 MHz. It uses split instruction and data buses, branch prediction, branch target caches, and stacking-unstacking to achieve faster execution. It is less than 35,000 gates in size.
Press release:
New 80251 Microcontroller IP Core Available from CAST is the World’s Fastest 8051-Compatible
View attachment 13392
In a 40nm LP process, the S80251XC3 can run with clock speeds over 300 MHz. It uses split instruction and data buses, branch prediction, branch target caches, and stacking-unstacking to achieve faster execution. It is less than 35,000 gates in size.
Press release:
New 80251 Microcontroller IP Core Available from CAST is the World’s Fastest 8051-Compatible