M80287中文資料英特爾數(shù)據(jù)手冊PDF規(guī)格書

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)