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INTEL387DX

更新时间： 2024-11-15 23:58:39

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Intel387 DX - MATH COPROCESSOR

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INTEL387DX 数据手册

Intel387^TMDX

MATH COPROCESSOR

High Performance 80-Bit Internal

Architecture

Upward Object-Code Compatible from

8087 and 80287

Implements ANSI/IEEE Standard 754-

1985 for Binary Floating-Point

Arithmetic

Full-Range Transcendental Operations

for SINE, COSINE, TANGENT,

ARCTANGENT and LOGARITHM

Expands Intel386^TMDX CPU Data

Types to Include 32-, 64-, 80-Bit

Floating Point, 32-, 64-Bit Integers and

18-Digit BCD Operands

Built-In Exception Handling

Operates Independently of Real,

Protected and Virtual-8086 Modes of

the Intel386^TMDX Microprocessor

Directly Extends Intel386^TMDX CPU

Instruction Set to Include

Trigonometric, Logarithmic,

Exponential and Arithmetic Instructions

for All Data Types

Eight 80-Bit Numeric Registers, Usable

as Individually Addressable General

Registers or as a Register Stack

Available in 68-Pin PGA Package

One Version Supports 16 MHz–33 MHz

Speeds

(See Packaging Spec: Order 231369)

The Intel387^TMDX Math CoProcessor (MCP) is an extension of the Intel386^TMmicroprocessor architecture.

The combination of the Intel387 DX MCP with the Intel386^TMDX Microprocessor dramatically increases the

processing speed of computer application software which utilize mathematical operations. This makes an ideal

computer workstation platform for applications such as financial modeling and spreadsheets, CAD/CAM, or

graphics.

The Intel387 DX Math CoProcessor adds over seventy mnemonics to the Intel386 DX Microprocessor instruc-

tion set. Specific Intel387 DX MCP math operations include logarithmic, arithmetic, exponential, and trigono-

metric functions. The Intel387 DX MCP supports integer, extended integer, floating point and BCD data

formats, and fully conforms to the ANSI/IEEE floating point standard.

The Intel387 DX Math CoProcessor is object code compatible with the Intel387 SX MCP, and upward object

code compatible from the 80287 and 8087 math coprocessors. Object code for Intel386 DX/Intel387 DX is

also compatible with the Intel486^TMmicroprocessor. The Intel387 DX MCP is manufactured on 1 micron,

CHMOS IV technology and packaged in a 68-pin PGA package.

240448–1

Figure 0.1. Intel387^TMDX Math CoProcessor Block Diagram

*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’s 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.

March 1992

Order Number: 240448-005

12 3 4 5 6 7...41

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与INTEL387DX相关器件

型号	品牌	获取价格	描述	数据表
INTEL387SX	INTEL	获取价格	Intel387 SX - MATH COPROCESSOR
INTEL387TMDX	INTEL	获取价格	Intel387TM DX MATH COPROCESSOR
INTEL-413808	INTEL	获取价格	Micro Peripheral IC, PBGA1357
INTEL740	ETC	获取价格	64-Bit Graphics (GUI) Accelerator
INTEL-82573E	INTEL	获取价格	Micro Peripheral IC
INTEL82801	INTEL	获取价格	82801AB (ICH0) I/O Controller Hub
INTEL-82801GB	INTEL	获取价格	Micro Peripheral IC
INTEL-82801GR	INTEL	获取价格	Micro Peripheral IC
INTEL82802AB	INTEL	获取价格	Firmware Hub (FWH)
INTEL-82910GMLE	INTEL	获取价格	Memory Controller, CMOS, PBGA1257

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