The TK80C186EB integrates commonly used system peripherals with the 186 CPU core to save space and reduce overall power consumption. A programmable interrupt controller supports and prioritizes 128 interrupts from internal, external, and software sources. The TK80C186EB also contains three programmable timer / counters, two serial channels, 2 parallel ports, and 10 programmable chip selects with programmable wait state generators. The TK80C186EB has a 16-bit external bus, while the TK80C188EB has an 8-bit external bus.
The TK80C186EB is the first in a series of 186 based products. The next processors in the series will be replacements for the 80C186XL / 80C188XL and the 80C186EA / 80C188EA devices, which will be available in Q1 of 2010.