FPGAs (Field Programmable Gate Array)

An integrated circuit that may be customized after manufacture is called a field-programmable gate array (FPGA). A hardware description language (HDL), similar to that used for an application-specific integrated circuit (ASIC), is typically used to specify the FPGA settings. Previously, the configuration was specified using circuit diagrams, but with the development of electrical design automation tools, this is becoming less common.