The ADSP-21487 offers the highest performance 450 MHz/2700 MFLOPs in an LQFP package within the fourth generation SHARC processor family. This level of performance makes the ADSP-21487 particularly well suited to address the consumer audio segment. In addition to its high core performance, the ADSP-21487 includes additional processing blocks such as FIR, IIR and FFT accelerators to increase the total performance of the system. There is a new feature called Variable Instruction Set Architecture (VISA) that allows the code size to be decreased by 20% to 30% and increase the memory size availability. The fourth generation DSP allows the ability to connect to external memory by providing a glueless interface to 16-bit wide SDR SDRAMs.