Intel/Altera N80C188XL12

The 80C186XL is a very high integration 16-bit microprocessor. It combines 15 - 20 of the most common microprocessor system components onto one chip. The 80C186XL is object code compatible with the 8086/8088 microprocessors and adds 10 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 NMOS 80186, with the exception of 8087 support. The Enhanced mode adds three new features to the system design. These are Power - Save control, Dynamic RAM refresh, and an asynchronous Numerics Coprocessor interface (80C186XL only). The 80C186XL oscillator circuit is designed to be used either with a parallel resonant fundamental or third - overtone mode crystal, depending upon the frequency range of the application. This is used as the time base for the 80C186XL. The crystal or clock frequency chosen must be twice the required processor operating frequency due to the internal divide by two counter. This counter is used to drive all internal phase clocks and the external CLKOUT signal. CLKOUT is a 50% duty cycle processor clock and can be used to drive other system components. All AC Timings are referenced to CLKOUT.

• 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)
• Speed Versions Available: 25 MHz (80C186XL25/80C188XL20), 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 (ElAJ)
  • Shrink Quad Flat Pack (SGFP)
• Available in Extended Temperature Range (-40℃ to +85℃)
• The Intel 80C186XL is a Modular Core re - implementation of the 80C186 microprocessor. It offers higher speed and lower power consumption than the standard 80C186 but maintains 100% clock - for - clock functional compatibility. Packaging and pinout are also identical.