General Description
The IA186ES/IA188ES family of microcontrollers replaces obsolete AMD Am186ES/188ES devices, allowing customers to retain existing board designs, software compilers/assemblers, and emulation tools and thus avoid expensive redesign efforts.
The IA186ES/IA188ES microcontrollers are an upgrade for the 80C186/188 microcontroller designs, with integrated peripherals to provide increased functionality and reduce system costs. The Innovasic devices are designed to satisfy requirements of embedded products designed for telecommunications, office automation/storage, and industrial controls.

Features
• Pin-for-pin compatible with AMD Am186ES/188ES devices
• All features are retained, including:
    – A phase-lock loop (PLL) allowing same crystal/system clock frequency
    – An 8086/8088 instruction set with additional 186 instruction set extensions
    – A programmable interrupt controller
    – Two Direct Memory Access (DMA) channels
    – Three 16-bit timers
    – A wait-state generator and programmable chip select logic
    – A dedicated watchdog timer (WDT)
    – Two independent asynchronous serial ports (UARTs)
        o DMA capability
        o Hardware flow control
        o 7-, 8-, or 9-bit data capability
    – Pulse width demodulator feature
    – Up to 32 programmable I/O (PIO) pins
• A pseudo-static/dynamic RAM controller
• A fully static CMOS design
• 40-MHz operation at industrial operating conditions
• +5-VDC power supply