Intel A80486SX-25 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-25 is an OEM/tray microprocessor

Frequency

25 MHz

Bus speed

25 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-25, ODPR486SX-25, SX2ODP50, SX2ODPR50, DX2ODP50 or DX2ODP50 to upgrade to 50 MHz
Use Intel DX4ODP75 or DX4ODPR75 to upgrade to 75 MHz
Use Intel PODP5V63 to upgrade to Pentium 63 MHz
See 80486 upgrade matrix for more information.

S-spec numbers

Part number	ES/QS processors		Production processors
	Q0152	Q0186	SX411	SX468	SX514	SX679	SX693	SX719
A80486SX-25	+	+	+	+	+	+	+	+

Part number	Production processors
	SX790	SX798	SX826	SX838	SX846	SX903	SX930
A80486SX-25	+	+	+	+	+	+	+

Architecture / Microarchitecture

Microarchitecture

i486

CPUIDs

420 (SX411, SX468)
422 (SX679, SX826)
423 (SX798, SX903)
42A (SX790)

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

Low power features

Stop Clock state (SL enhanced version only)
Stop Grant state (SL enhanced version only)
Stop Clock Snoop state (SL enhanced version only)
Auto Halt state (SL enhanced version only)
Upgrade Power Down mode (SL enhanced version only)

On-chip peripherals

Memory management unit

Electrical / Thermal parameters

V core

5V ± 5%

Minimum/Maximum operating temperature

0°C - 85°C

Minimum/Typical/Maximum power dissipation

0.33 Watt (Stop Grant mode) / 1.89 Watt / 2.94 Watt

Notes on Intel 25 MHz

Newer versions of the processor incorporate SL technology.

Intel A80486SX-25microprocessors pictures

other microprocessors

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	Intel FC80486DX4-75

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