eSi-RISC s eSi-1600 16-bit RISC CPU IP core is an extremely small, low-cost and low-power processor ideal for integration into ASIC and/or FPGA designs.

The eSi-1650 16-bit CPU with instruction cache is targeted specifically for low-power applications, where typically an 8-bit CPU may have previously been used or where a 32-bit CPU is too big or power hungry.