IA186EM/IA188EM
Data Sheet
8-Bit/16-Bit Microcontrollers
February 25, 2011
1.
Introduction
The IA186EM/IA188EM is a form, fit, and function replacement for the original Advanced
Micro Devices Am186EM/Am188EM family of microcontrollers. Innovasic produces
replacement ICs using its MILESTM, or Managed IC Lifetime Extension System cloning
technology. This technology produces replacement ICs far more complex than ―emulation‖
while ensuring they are compatible with the original IC. MILESTM captures the design of a
clone so it can be produced even as silicon technology advances. MILESTM also verifies the
clone against the original IC so that even the ―undocumented features‖ are duplicated.
1.1
General Description
The IA186EM/IA188EM family of microcontrollers replaces obsolete Am186EM/188EM
devices, allowing customers to retain existing board designs, software compilers/assemblers and
emulation tools, thereby avoiding expensive redesign efforts.
The IA186EM/IA188EM microcontrollers are an upgrade for the 80C186/80C 188
microcontroller designs, with integrated peripherals to provide increased functionality and
reduce system costs. The Innovasic devices are created to satisfy requirements of embedded
products designed for telecommunications, office automation and storage, and industrial
controls.
1.2
Features
Pin-for-pin compatible with Am186EM/Am188EM devices
All features are retained, including:
– A phase-lock loop (PLL) allowing same crystal/system clock frequency
– 8086/8088 instruction set with additional 186 instruction set extensions
– Programmable interrupt controller
– Two Direct Memory Access (DMA) channels
– Three 16-bit timers
– Programmable chip select logic and wait-state generator
– Dedicated watchdog timer
– 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 pins (PIO)
Pseudo-static/dynamic RAM controller
Fully static CMOS design
40-MHz operation at industrial operating conditions
+5 VDC power supply
®
IA211050831-19
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