Hot-selling and scarce N80C186XL20 16-Bit Microcontroller PLCC68

Product Descriptions

IA186XL and IA188XL microcontrollers have a set of base peripherals beneficial to many embedded applications and include a standard numeric interface, an interrupt control unit, a chip-select unit/Ready Generation Logic, a DRAM refresh control unit, a Power-Save Control unit, DMA and three 16-bit timer/counters.

The IA186XL and IA188XL microcontrollers operate at 5.0 volts ± 10 PERCENT.

The following functional description describes the base architecture of the 80C186XL. The 80C186XL is a very high integration 16-bit microprocessor. It combines some of the most common microprocessor system components onto one chip. The 80C186XL is object-code compatible with the 8086/8088 microprocessors and adds ten new instruction types to the 8086/8088 instruction set.

The 80C186XL has two major modes of operation, Compatible and Enhanced. In Compatible Mode, the 80C186XL is completely compatible with the 80186, with the exception of 8087 support. The Enhanced mode adds three new features to the system design. These are PowerSave control, Dynamic RAM refresh, and an asynchronous Numerics Coprocessor interface (80C186XL only).

Product Features

Form, fit, and function compatible version of the low power Intel 80C186XL/80C188XL

Operation modes:

– Enhanced mode

o DRAM refresh control unit

o Power-save mode

o Direct interface to 80C187 (IA186XL only)

– Compatible mode

o Pin-for-pin replacement for NMOS 80186/80188 non-numeric applications Integrated feature set

– Static, modular CPU

– Clock generator

– Two independent DMA channels

– Programmable interrupt controller

– Three programmable 16-bit timers

– Dynamic RAM refresh control unit

– Programmable memory and peripheral chip select logic

– Programmable wait state generator

– Local bus controller

– Power-save mode

– System-level testing support (high impedance test mode)

Product Photos

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