80387DX

Features:

* 80-Bit numeric processor
*RAD-PAK^(R) radiation hardened against natural space radia-tion
* Total dose hardness:
   - > 100 krad (Si)
   - dependant upon space mission
* Single Event Effects:
   -  SEU Threshold is ~ 3.38 MeV/mg/cm²
   -  SEL Threshold = 37.1 - 59.9 MeV/mg/cm²
* Package: 68-pin RAD-PA^(R) quad flat pack
* Eight 80-bit numeric registers, usable as individual addres-sable general registers or as a register stack
* Data types include:
   - 32-, 64-, 80-bit floating point
   - 32-, 64-bit integers
   - 18-digit BCD operands
* 5 V Only power
* Built-in exception handling
* Upward object code compatible with All 80X87DX micro-processors
* Full-range transcendental operations for SINE, COSINE, TANGENT, ARCTANGENT and LOGARITHM

Specifications

PARAMETER	SYMBOL	MIN	MAX	UNIT
Voltage, any pin, with respect to Ground	VCC	-0.5	VCC +0.5	V
Power Dissipation	PD	--	1.5	W
Storage Temperature Range	TS	-65	150
Operating Temperature Range	TA	-55	125
Lead Temperature (soldering 10 seconds)		--	260

Description

Maxwell's 80387DX high speed microcircuit features a greater than 100 kilorad (Si) total dose tolerance.  Using Maxwell's radiation hardened RAD-PAK^(R) packaging technology, the 80387DX is a high-performance numerics processor that extends the 80386DX architecture with floating point,extended integer and BCD data types.  The computing system fully conforms to the ANSI/IEEE floating-point standard. Using a numerics oriented architecture, the 80387DX adds over seventy mnemonics to the 80386DX instruction set, mak-ing the 80386DX/80387DX a complete solution for high-per-formance numerics processing.
Maxwell Technologies' patented RAD-PAK packaging technol-ogy incorporates radiation shielding in the microcircuit pack-age.  80387DX eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission.  In a GEO orbit, RAD-PAK 80387DX provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to Class S.