RDC사의 CPU datasheet입니다.

[] R88 series(40 MHz/5V)

   . R8820 is compatible with 186ES
   . R8830 is compatible with 188ES

[] R88LV series(25 MHz/3.3V)

   . R8820LV is compatible with 186ESLV
   . R8830LV is compatible with 188ESLV

[] Network processors (100 MHz/3.3V)  

   . R1610C with one 10/100M MAC controller and a 1MB real mode address space
   . R2010C with one 10/100M MAC controller and a 16MB extended mode address space
   . R2020C with two 10/100M MAC controllers and a 16MB extended mode address space