Intel A80486SX-20 information

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Type:CPU	Manufacturer:Intel
family:80486	microprocessors:Intel A80486SX-16

General information

Type

CPU / Microprocessor

Family

Intel 80486

CPU part number

A80486SX-20 is an OEM/tray microprocessor

Frequency

20 MHz

Bus speed

20 MHz

Clock multiplier

Package

168-pin Pin Grid Array
1.75" x 1.75" (4.45 cm x 4.45 cm)

Socket

PGA168

Introduction date

16-Sep-91

Upgrade options

Use Intel ODP486SX-20, ODPR486SX-20, SX2ODP50, SX2ODPR50, DX2ODP50 or DX2ODP50 to upgrade to 40 MHz
Use Intel DX4ODP75 or DX4ODPR75 to upgrade to 60 MHz
Use Intel PODP5V63 to upgrade to Pentium 50 MHz
See 80486 upgrade matrix for more information.

S-spec numbers

Part number	Production processors
	SX406	SX467	SX492	SX678	SXE63
A80486SX-20	+	+	+	+	+

Architecture / Microarchitecture

Microarchitecture

i486

CPUID

420 (SX406)

Data width

32 bit

Floating Point Unit

80487SX co-processor

Level 1 cache size

8 KB 4-way set associative unified code and data cache

Physical memory

4 GB

Virtual memory

64 TB

On-chip peripherals

Memory management unit

Electrical / Thermal parameters

V core

5V ± 5%

Minimum/Maximum operating temperature

0°C - 85°C

Typical/Maximum power dissipation

2.25 Watt / 2.78 Watt

Intel A80486SX-20microprocessors pictures

other microprocessors

Intel A80486SX-25	Intel A80486SX-33
Intel A80486DX-25	Intel A80486DX-33
Intel A80486DX2-40	Intel A80486SX2-50
Intel A80486DX-50	Intel A80486DX2-50
Intel A80486DX2-66	Intel A80486DX4-75
Intel A80486DX4-100	Intel FA80486SX33

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