IA188EBPLC84IR2 is a Innovasic IA188EB microcontroller. This is an upgrade for the 80C188EB microcontroller designs with integrated peripherals to provide increased functionality and reduce system costs. The IA188EB device is designed to satisfy requirements of embedded products designed for telecommunications, office automation and storage, and industrial controls. IA188EB microcontroller have a set of base peripherals beneficial to many embedded applications and include a standard numeric interface, an interrupt control unit, a chipselect unit, a DRAM refresh control unit, a power management unit, and three 16bit timer/counters. It includes two integrated serial ports that support both synchronous and asynchronous communications, simplifying inter-processor and display communications. It has an enhanced chip-select unit and two multiplexed I/O ports. The enhanced chip-select unit offers 10 general chip selects, each with the ability to address up to 1Mbyte.