80C883

Features:

* This Circuit is Processed in Accordance to MIL-STD-883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1.
* Compatible with NMOS 80286/883
* Static CMOS Design for Low Power Operation
  - ICCSB = 5mA Maximum
  - ICCOP = 185mA Maximum (80C286-10/883)
  - ICCOP = 220mA Maximum (80C286-12/883)
* Large Address Space
  - 16 Megabytes Physical
  - 1 Gigabyte Virtual per Task
* Integrated Memory Management, Four-Level Memory Protection and Support for Virtual Memory and Operating Systems
* Two 80C86 Upward Compatible Operating Modes
  - 80C286/883 Real Address Mode
  - Protected Virtual Address Mode
* Compatible with 80287 Numeric Data Co-Processor


Pinout




Specifications

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+8.0V
Input, Output or I/O Voltage Applied. . . . . ...GND -1.0V to V_CC+1.0V
Storage Temperature Range . . . . . . . . . . . . . . . . . -65  to +150
Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175
Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . . . . +300
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Class 1


Description

The Intersil 80C286/883 is a static CMOS version of the NMOS 80286 microprocessor. The 80C286/883 is an advanced, high-performance microprocessor with specially optimized capabilities for multiple user and multi-tasking sys-ems. The 80C286/883 has built-in memory protection that supports operating system and task isolation as well as pro- gram and data privacy within tasks. The 80C286/883 ncludes memory management capabilities that map 230
(one gigabyte) of virtual address space per task into 2²⁴ bytes (16 megabytes) of physical memory.

The 80C286/883 is upwardly compatible with 80C86 and 80C88 software (the 80C286/883 instruction set is a super-
set of the 80C86/80C88 instruction set). Using the  80C286/ 883 real address mode, the 80C286/883 is object code com-patible with existing 80C86 and 80C88 software. In protected virtual address mode, the 80C286/883 is source code com-patible with 80C86 and 80C88 software but may require upgrading to use virtual address as supported by the80C286/883's integrated memory management and protec-tion mechanism. Both modes operate at full 80C286/883 performance and execute a superset of the 80C86 and 80C88 instructions.

The 80C286/883 provides special operations to support the efficient implementation and execution of operating systems.For example, one instruction can end execution of one task,save its state, switch to a new task, load its state, and start execution of the new task. The segment-not-present excep-tion and restartable instructions.