80C286
®
High Performance Microprocessor
with Memory Management and Protection
January 28, 2008
Features
Description
• Compatible with NMOS 80286
• Wide Range of Clock Rates
- DC to 25MHz (80C286-25)
- DC to 20MHz (80C286-20)
- DC to 16MHz (80C286-16)
- DC to 12.5MHz (80C286-12)
- DC to 10MHz (80C286-10)
• Static CMOS Design for Low Power Operation
- ICCSB = 5mA Maximum
- ICCOP = 185mA Maximum (80C286-10)
220mA Maximum (80C286-12)
260mA Maximum (80C286-16)
310mA Maximum (80C286-20)
410mA Maximum (80C286-25)
• High Performance Processor (Up to 19 Times the 8086
Throughput)
• 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 Real Address Mode
- PVAM
• Compatible with 80287 Numeric Data Co-Processor
• High Bandwidth Bus Interface (25 Megabyte/Sec)
• Available In
- 68 Pin PGA (Commercial, Industrial, and Military)
- 68 Pin PLCC (Commercial and Industrial)
The Intersil 80C286 is a static CMOS version of the NMOS
80286 microprocessor. The 80C286 is an advanced, highperformance microprocessor with specially optimized capabilities for multiple user and multi-tasking systems. The
80C286 has built-in memory protection that supports operating system and task isolation as well as program and data
privacy within tasks. A 25MHz 80C286 provides up to nineteen times the throughput of a standard 5MHz 8086. The
80C286 includes memory management capabilities that map
230 (one gigabyte) of virtual address space per task into 224
bytes (16 megabytes) of physical memory.
The 80C286 is upwardly compatible with 80C86 and 80C88
software (the 80C286 instruction set is a superset of the
80C86/80C88 instruction set). Using the 80C286 real
address mode, the 80C286 is object code compatible with
existing 80C86 and 80C88 software. In protected virtual
address mode, the 80C286 is source code compatible with
80C86 and 80C88 software but may require upgrading to
use virtual address as supported by the 80C286’s integrated
memory management and protection mechanism. Both
modes operate at full 80C286 performance and execute a
superset of the 80C86 and 80C88 instructions.
The 80C286 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 80C286 also supports virtual
memory systems by providing a segment-not-present exception and restartable instructions.
Ordering Information
PACKAGE
PGA
TEMP. RANGE
10MHz
0oC to +70oC
-
12.5MHz
CG80C286-12
16MHz
CG80C286-16
-40oC to +85oC
PLCC
IG80C286-10
IG80C286-12
-
-55oC to +125oC
59629067801MXC
59629067802MXC
-
0oC to +70oC
-40oC to +85oC
IS80C286-10
20MHz
CG80C286-20
PKG. NO.
-
G68.B
-
-
G68.B
-
-
G68.B
CS80C286-12
CS80C286-16
CS80C286-20
IS80C286-12
IS80C286-16
IS80C286-20
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright © Intersil Americas Inc. 2003-2008. All Rights Reserved
1
All other trademarks mentioned are the property of their respective owners.
25MHz
CS80C286-25
-
N68.95
N68.95
FN2947.3
