The Am186TMER and Am188TMER microcontrollers are par t of the AMD E86TM family of embedded microcontrollers and microprocessors based on the x86 architecture. The Am186ER and Am188ER microcontrollers are the ideal upgrade for designs requiring 80C186/80C188 microcontroller c o m p a t i b i l i t y, i n c r e a s e d p e r f o r m a n c e, s e r i a l communications, a direct bus interface, and integrated memory.