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INTEL387 Datasheet

  • INTEL387

  • Intel387TM SX MATH COPROCESSOR

  • 47頁

  • INTEL   INTEL

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Intel387
TM
SX
MATH COPROCESSOR
Y
New Automatic Power Management
Low Power Consumption
Typically 100 mA in Dynamic Mode
and 4 mA in Idle Mode
Socket Compatible with Intel387 Family
of Math CoProcessors
Hardware and Software Compatible
Supported by Over 2100 Commercial
Software Packages
10% to 15% Performance Increase
on Whetstone and Livermore
Benchmarks
Y
Y
Compatible with the Intel386
TM
SX
Microprocessor
Extends CPU Instruction Set to
Include Trigonometric Logarithmic
and Exponential
High Performance 80-Bit Internal
Architecture
Implements ANSI IEEE Standard
754-1985 for Binary Floating-Point
Arithmetic
Available in a 68-Pin PLCC Package
See Intel Packaging Specification Order
231369
Y
Y
Y
The Intel387
TM
SX Math CoProcessor is an extension to the Intel386
TM
SX microprocessor architecture The
combination of the Intel387
TM
SX with the Intel386
TM
SX microprocessor dramatically increases the process-
ing speed of computer application software that utilizes high performance floating-point operations An internal
Power Management Unit enables the Intel387
TM
SX to perform these floating-point operations while maintain-
ing very low power consumption for portable and desktop applications The internal Power Management Unit
effectively reduces power consumption by 95% when the device is idle
The Intel387
TM
SX Math CoProcessor is available in a 68-pin PLCC package and is manufactured on Intel鈥檚
advanced 1 0 micron CHMOS IV technology
240225 鈥?2
Intel386 and Intel387 are trademarks of Intel Corporation
Other brands and names are the property of their respective owners
Information in this document is provided in connection with Intel products Intel assumes no liability whatsoever including infringement of any patent or
copyright for sale and use of Intel products except as provided in Intel鈥檚 Terms and Conditions of Sale for such products Intel retains the right to make
changes to these specifications at any time without notice Microcomputer Products may have minor variations to this specification known as errata
January 1994
COPYRIGHT
INTEL CORPORATION 1995
Order Number 240225-009
1

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