https://docs.amd.com/v/u/en-US/wp483-spartan-7-intro
Spartan-7 FPGAs: Meeting the Cost-Sensitive Market Requirements (WP483) - The Xilinx Spartan-7...
The Xilinx Spartan-7 family offers an array of low-cost, high-efficiency FPGAs. These devices have been purpose-designed to meet the special needs of the...
the costmarket requirementsspartanfpgasmeeting