80387DXRPQB

Math Coprocessor, 32Bit, QFP-68

DESCRIPTION:

"s 80387DX high speed microcircuit features a greater than 100 kilorad Si total dose tolerance. Using Maxwell"s radiation hardened RAD-PAK® 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, making the 80386DX/80387DX a complete solution for high-per formance numerics processing.

FEATURES:

• 80-Bit numeric processor

•RAD-PAK® radiation hardened against natural space radiation

• 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® 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 microprocessors

• Full-range transcendental operations for SINE, COSINE, TANGENT, ARCTANGENT and LOGARITHM