Intel387™ SX MATH COPROCESSOR

The Intel387TM SX Math CoProcessor is an extension to the Intel386TM SX microprocessor architecture. The combination of the Intel387TM SX with the Intel386TM SX microprocessor dramatically increases the processing speed of computer application software that utilizes high performance floating-point operations. An internal Power Management Unit enables the Intel387TM SX to perform these floating-point operations while maintaining 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 Intel387TM SX Math CoProcessor is available in a 68-pin PLCC package, and is manufactured on Intel’s advanced 1.0 micron CHMOS IV technology.

■ 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
■ Compatible with the Intel386TM 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