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Intersil Electronic Components Datasheet

High Performance Microprocessor

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March 1997

Management and Protection

Description

• This Circuit is Processed in Accordance to MIL-STD-

883 and is Fully Conformant Under the Provisions of

• Compatible with NMOS 80286/883

- ICCSB = 5mA Maximum

- ICCOP = 220mA Maximum (80C286-12/883)

- 16 Megabytes Physical

• Integrated Memory Management, Four-Level Memory

Operating Systems

- 80C286/883 Real Address Mode

• Compatible with 80287 Numeric Data Co-Processor

The Intersil 80C286/883 is a static CMOS version of the

advanced, high-performance microprocessor with specially

optimized capabilities for multiple user and multi-tasking sys-

tems. 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

includes memory management capabilities that map 230

(one gigabyte) of virtual address space per task into 224

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 pro-

tected virtual address mode, the 80C286/883 is source code

compatible with 80C86 and 80C88 software but may require

upgrading to use virtual address as supported by the

80C286/883’s integrated memory management and protec-

tion mechanism. Both modes operate at full 80C286/883

performance and execute a superset of the 80C86 and

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-

Ordering Information

10MHz

16MHz

0oC to +70oC

CG80C286-12

-40oC to +85oC IG80C286-10

CG80C286-20

25MHz PKG. NO.

- G68.B

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc.

FN2948.1

80286 Basic Features The 80286 microprocessor is an advanced version of the 8086 microprocessor that is designed for multi user and multitasking environments The 80286 addresses 16 M Byte of physical memory and 1G Bytes of virtual memory by using its memory-management system The 80286 is basically an 8086 that is optimized to. The Intel 80286 (also marketed as the iAPX 286 and often called Intel 286) is a 16-bit microprocessor that was introduced on February 1, 1982. It was the first 8086-based CPU with separate, non-multiplexed address and data buses and also the first with memory management and wide protection abilities.The 80286 used approximately 134,000 transistors in its original nMOS incarnation and, just. 80286 Microprocessor is a 16-bit microprocessor that has the ability to execute 16-bit instruction at a time. It has non-multiplexed data and address bus. The size of data bus is 16-bit whereas the size of address bus is 24-bit. It was invented in February 1982 by Intel. 80286 microprocessor was basically an advancement of 8086 microprocessor.Further in 1985, Intel produced upgraded version of. REFERENCES: Microprocessors and Microcontrollers Notes – MPMC Notes – MPMC Pdf Notes. 1.advanced microprocessors and peripherals- A.K Ray and K.M. Bhurchandani, TMH, 2nd ed,2006. 2.the 8051 microcontrollers, architecture and programming and applications- K. Uma Rao,Andhe Pallavi,Pearson 2009.