●INTRODUCTION
●Unless specifically noted, all references to the 80C186XL apply to the 80C188XL. References to pins that differ between the 80C186XL and the 80C188XL are given in parentheses.
●The following Functional Description describes the base architecture of the 80C186XL. The 80C186XL is a very high integration 16-bit microprocessor. It combines 15–20 of the most common microproces sor system components onto one chip. The 80C186XL is object code compatible with the 8086/8088 microprocessors and adds 10 new in struction types to the 8086/8088 instruction set.
●■ Low Power, Fully Static Versions of 80C186/80C188
●■ Operation Modes:
● - Enhanced Mode
● - DRAM Refresh Control Unit
● - Power-Save Mode
● - Direct Interface to 80C187 (80C186XL Only)
● - Compatible Mode
● - NMOS 80186/80188 Pin-for-Pin Replacement for Non-Numerics Applications
●■ Integrated Feature Set
● - Static, Modular CPU
● - Clock Generator
● - 2 Independent DMA Channels
● - Programmable Interrupt Controller
● - 3 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)
●■ Completely Object Code Compatible with Existing 8086/8088 Software and Has 10 Additional Instructions over 8086/8088
●■ Speed Versions Available
● - 25 MHz (80C186XL25/80C188XL25)
● - 20 MHz (80C186XL20/80C188XL20)
● - 12 MHz (80C186XL12/80C188XL12)
●■ Direct Addressing Capability to 1 MByte Memory and 64 Kbyte I/O
●■ Available in 68-Pin:
● - Plastic Leaded Chip Carrier (PLCC)
● - Ceramic Pin Grid Array (PGA)
● - Ceramic Leadless Chip Carrier (JEDEC A Package)
●■ Available in 80-Pin:
● - Quad Flat Pack (EIAJ)
● - Shrink Quad Flat Pack (SGFP)
●■ Available in Extended Temperature Range (-40°C to +85°C)
