Intel N80387SX-25 information

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Type:FPU	Manufacturer:Intel
family:80387	microprocessors:Intel A80387DX-16-33

General information

Type

Floating Point Unit / Co-processor

Family

Intel 80387

FPU part number

N80387SX-25 is an OEM/tray floating-point unit

Frequency

25 MHz

Package

68-pin plastic LCC

Socket

PLCC68

S-spec numbers

Part number	Production processors
	SZ507	SZ660
N80387SX-25	+	+

Architecture / Microarchitecture

Manufacturing process

1 micron high-speed CHMOS IV technology

Low power features

Idle mode

Electrical / Thermal parameters

V core

5V ± 10%

Minimum/Maximum operating temperature

0°C - 100°C

Minimum/Typical/Maximum power dissipation

0.035 Watt (Idle mode) / 0.65 Watt / 0.83 Watt

Notes on Intel N80387SX-25

Implements ANSI/IEEE standard 754-1985 for binary floating-point arithmetic
Idle mode is invoked automatically 3 clocks after completion of previous instruction

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Reveal 387DX	ULSI US83S87 25
ULSI ULSI SX/SLC 33	ULSI MathCo SX-33
ULSI MathCo DX 33	ULSI MathCo DX 40

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