The Intel M80287 is a high performance numerics processor extension that extends the M80286/10 architecture with floating point, extended integer and BCD data types. The M80286/20 computing system (M80286 and M80287) fully conforms to the proposed IEEE Floating Point Standard. Using a numerics oriented architecture, the M80287 adds over fifty mnemonics to the M80286/20 instruction set, making the M80286/20 a complete solution for high performance numeric processing. The M80287 is implemented in N-channel, depletion load, silicon gate technology (HMOS) and packaged in a 40-pin ceramic package. The M80286/20 is object code compatible with the M80286/20 and M8088/20. Intel’s HMOS III process provides superior radiation tolerance for applications with stringent radiation requirements. ■ High Performance 80-Bit Internal Architecture ■ Implements Proposed IEEE Floating Point Standard 754 ■ Expands M80286/10 Datatypes to Include 32-, 64-, 80-Bit Floating Point, 32-, 64-Bit Integers and 18-Digit BCD Operands ■ Object Code Compatible with M8087 ■ Built-In Exception Handling ■ Operates in Both Real and Protected Mode M80286 Systems ■ Available in a 40-Pin Cerdip Package ■ Protected Mode Operation Completely Conforms to the M80286 Memory Management and Protection Mechanisms ■ Directly Extends M80286/10 Instruction Set to Trigonometric, Logarithmic, Exponential and Arithmetic Instructions for All Datatypes ■ 8 x 80-Bit, Individually Addressable, Numeric Register Stack ■ 6, 8, 10 MHz ■ Military Temperature Range: -55°C to +125°C (TC)
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