FA80486SXSF33

FA80486SXSF33 Datasheet

Part	Datasheet
FA80486SXSF33	FA80486SXSF33 (pdf)

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Embedded Intel486 SX Processor Product Features s 32-Bit RISC Technology Core s 8-Kbyte Write-Through Cache s Four Internal Write Buffers s Burst Bus Cycles s Dynamic Bus Sizing for 8- and 16-bit Data Bus Devices s SL Technology Datasheet s Data Bus Parity Generation and Checking s Boundary Scan JTAG s 5-Volt Processor 196-Lead Plastic Quad Flat Pack PQFP 168-Pin Grid Array PGA s Binary Compatible with Large Software Base Barrel Shifter Register File 64-Bit Interunit Transfer Bus 32-Bit Data Bus 32-Bit Data Bus Linear Address Base/ Index Bus Segmentation Unit Descriptor Registers Limit and Attribute PLA Paging Unit PCD PWT Cache Unit Translation Lookaside Buffer Physical Address 8 Kbyte Cache MicroInstruction Displacement Bus 32 Prefetcher Control & Protection Test Unit Instruction Decode Code Stream 32-Byte Code Queue 2x16 Bytes Control ROM Decoded Instruction Path Bus Interface A31-A2 Address BE3#- BE0# Drivers Write Buffers 4 x 32 Data Bus D31-D0 Transceivers Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling 1-800-548-4725 or by visiting Intel's website at Copyright Intel Corporation, 2001, 2004 AlertVIEW, i960, AnyPoint, AppChoice, BoardWatch, BunnyPeople, CablePort, Celeron, Chips, Commerce Cart, CT Connect, CT Media, Dialogic, DM3, EtherExpress, ETOX, FlashFile, GatherRound, i386, i486, iCat, iCOMP, Insight960, InstantIP, Intel, Intel logo, Intel386, I ntel486, Intel740, IntelDX2, IntelDX4, IntelSX2, Intel ChatPad, Intel Create&Share, Intel Dot.Station, Intel GigaBlade, Intel InBusiness, Intel Inside, Intel Inside logo, Intel NetBurst, Intel NetStructure, Intel Play, Intel Play logo, Intel Pocket Concert, Intel SingleDriver, Intel SpeedStep, Intel StrataFlash, Intel TeamStation, Intel WebOutfitter, Intel Xeon, Intel XScale, Itanium, JobAnalyst, LANDesk, LanRover, MCS, MMX, MMX logo, NetPort, NetportExpress, Optimizer logo, OverDrive, Paragon, PC Dads, PC Parents, Pentium, Pentium II Xeon, Pentium III Xeon, Performance at Your Command, ProShare, RemoteExpress, Screamline, Shiva, SmartDie, Solutions960, Sound Mark, StorageExpress, The Computer Inside, The Journey Inside, This Way In, TokenExpress, Trillium, Vivonic, and VTune are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Other names and brands may be claimed as the property of others. Datasheet Contents Contents 5 Family Members 6 How To Use This Document 7 Pin Descriptions 7 Pin Assignments 7 Pin Quick Reference Architectural and Functional Overview CPUID Instruction Operation of the CPUID Instruction Identification After Boundary Scan Device Boundary Scan Register Bits and Bit Electrical Specifications Maximum Ratings DC Specifications AC Capacitive Derating Curves Mechanical Data Package Dimensions 34 Package Thermal Specifications Figures 1 Package Diagram for 168-Pin PGA Embedded Intel486 SX Processor 8 2 Package Diagram for 196-Lead PQFP Embedded Intel486 SX Processor 3 CLK Waveform 4 Input Setup and Hold Timing 5 Input Setup and Hold Timing 6 PCHK# Valid Delay 7 Output Valid Delay Timing 8 Maximum Float Delay Timing 9 TCK Waveform 10 Test Signal Timing Diagram 11 Typical Loading Delay versus Load Capacitance under Worst-Case Conditions for a Low-to-High Transition, 5 V 12 Typical Loading Delay versus Load Capacitance under Worst-Case Conditions for a High-to-Low Transition, 5 V 13 168-Pin PGA Package Dimensions 14 Principal Dimensions and Data for 196-Lead Plastic Quad Flat Pack Package.........................36 15 Typical Lead for 196-Lead PQFP Package Datasheet Contents Tables 1 The Embedded Intel486 SX Processor Family 6 2 Pinout Differences for 168-Pin PGA Package 9 3 Pin Assignment for 168-Pin PGA Package 9 4 Pin Cross Reference for 168-Pin PGA Package 11 5 Pin Assignment for 196-Lead PQFP Package 13 6 Pin Cross Reference for 196-Lead PQFP Package 14 7 Embedded Intel486 SX Processor Pin Descriptions 16 8 Output Pins 21 9 Input/Output 21 10 Test 21 11 Input 22 12 CPUID Instruction 23 13 Boundary Scan Component Identification Code 5 Volt Processor 24 14 Absolute Maximum Ratings 25 15 Operating Supply Voltages 26 16 5 V DC 26 17 5 V ICC Values 27 18 AC Characteristics 27 19 AC Specifications for the Test Access Port 29 20 168-Pin Ceramic PGA Package Dimensions 35 21 Ceramic PGA Package Dimension Symbols 35 22 Symbol List and Dimensions for 196-Lead PQFP Package 36 23 Thermal Resistance, qJA xC/W for the 196-Lead PQFP 38 24 Thermal Resistance, qJC xC/W for the 196-Lead PQFP 38 25 Thermal Resistance, qJA xC/W for the 168-Lead PQFP 38 26 Maximum Tambient TA, xC 38 Date August 2004 September 2001 December 1997 October 1995 003 002 001 To address the fact that many of the package prefix variables have changed, all package prefix variables in this document are now indicated with an "x". Removed V device. Added 5 V PGA information. Updated related documents list. First release of this datasheet for embedded. Datasheet Intel486 SX Processor Introduction The embedded Intel486 SX processor provides high performance to 32-bit, embedded applications. Designed for applications that do not need a floating-point unit, the processor is ideal for embedded designs running DOS, Microsoft* Windows, OS/2, or UNIX* applications written for the Intel architecture. Projects can be completed quickly by utilizing the wide range of software tools, utilities, assemblers and compilers that are available for desktop computer systems. Also, developers can find advantages in using existing chip sets and peripheral components in their embedded designs. The embedded Intel486 SX processor is binary compatible with the Intel386 and earlier Intel processors. Compared with the Intel386 processor, it provides faster execution of many commonlyused instructions. It also provides the benefits of an integrated, 8-Kbyte, write-through cache for code and data. Its data bus can operate in burst mode which provides up to 106-Mbyte-per-second transfers for cache-line fills and instruction prefetches. Intel’s SL technology is incorporated in the embedded Intel486 SX processor. Utilizing Intel’s System Management Mode SMM , it enables designers to develop energy-efficient systems. Two component packages are available for 5-Volt designs. Both products operate at 33 MHz. • 196-lead Plastic Quad Flat Pack PQFP • 168-pin Grid Array PGA . The embedded Intel486 SX processor offers these features: • 32-bit RISC-Technology Core The embedded Intel486 SX processor performs a complete set of arithmetic and logical operations on 8-, 16-, and 32-bit data types using a full-width ALU and eight general purpose registers. • Single Cycle Execution Many instructions execute in a single clock cycle. • Instruction Pipelining Overlapped instruction fetching, decoding, address translation and execution. • On-Chip Cache with Cache Consistency Support An 8-Kbyte, write-through, internal

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Embedded Intel486 SX Processor

Product Features
s 32-Bit RISC Technology Core s 8-Kbyte Write-Through Cache s Four Internal Write Buffers s Burst Bus Cycles s Dynamic Bus Sizing for 8- and 16-bit

Data Bus Devices s SL Technology

Datasheet
s Data Bus Parity Generation and Checking s Boundary Scan JTAG s 5-Volt Processor
196-Lead Plastic Quad Flat Pack PQFP 168-Pin Grid Array PGA s Binary Compatible with Large Software Base

Barrel Shifter

Register File
64-Bit Interunit Transfer Bus 32-Bit Data Bus
32-Bit Data Bus

Linear Address

Base/ Index Bus

Segmentation Unit

Descriptor Registers

Limit and Attribute PLA

Paging Unit

PCD PWT

Cache Unit

Translation Lookaside

Buffer

Physical Address
8 Kbyte Cache

MicroInstruction

Displacement Bus 32

Prefetcher

Control & Protection Test Unit

Instruction Decode

Code Stream
32-Byte Code Queue
2x16 Bytes

Control ROM

Decoded Instruction Path

Bus Interface A31-A2

Address

BE3#- BE0#

Drivers

Write Buffers
4 x 32

Data Bus D31-D0

Transceivers
Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling 1-800-548-4725 or by visiting Intel's website at

Copyright Intel Corporation, 2001, 2004

AlertVIEW, i960, AnyPoint, AppChoice, BoardWatch, BunnyPeople, CablePort, Celeron, Chips, Commerce Cart, CT Connect, CT Media, Dialogic, DM3, EtherExpress, ETOX, FlashFile, GatherRound, i386, i486, iCat, iCOMP, Insight960, InstantIP, Intel, Intel logo, Intel386, I ntel486, Intel740, IntelDX2, IntelDX4, IntelSX2, Intel ChatPad, Intel Create&Share, Intel Dot.Station, Intel GigaBlade, Intel InBusiness, Intel Inside, Intel Inside logo, Intel NetBurst, Intel NetStructure, Intel Play, Intel Play logo, Intel Pocket Concert, Intel SingleDriver, Intel SpeedStep, Intel StrataFlash, Intel TeamStation, Intel WebOutfitter, Intel Xeon, Intel XScale, Itanium, JobAnalyst, LANDesk, LanRover, MCS, MMX, MMX logo, NetPort, NetportExpress, Optimizer logo, OverDrive, Paragon, PC Dads, PC Parents, Pentium, Pentium II Xeon, Pentium III Xeon, Performance at Your Command, ProShare, RemoteExpress, Screamline, Shiva, SmartDie, Solutions960, Sound Mark, StorageExpress, The Computer Inside, The Journey Inside, This Way In, TokenExpress, Trillium, Vivonic, and VTune are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries.
*Other names and brands may be claimed as the property of others.

Datasheet

Contents

Contents
5 Family Members 6

How To Use This Document 7

Pin Descriptions 7 Pin Assignments 7 Pin Quick Reference

Architectural and Functional Overview CPUID Instruction Operation of the CPUID Instruction Identification After Boundary Scan Device Boundary Scan Register Bits and Bit

Electrical Specifications Maximum Ratings DC Specifications AC Capacitive Derating Curves

Mechanical Data Package Dimensions 34 Package Thermal Specifications

Figures
1 Package Diagram for 168-Pin PGA Embedded Intel486 SX Processor 8 2 Package Diagram for 196-Lead PQFP Embedded Intel486 SX Processor 3 CLK Waveform 4 Input Setup and Hold Timing 5 Input Setup and Hold Timing 6 PCHK# Valid Delay 7 Output Valid Delay Timing 8 Maximum Float Delay Timing 9 TCK Waveform 10 Test Signal Timing Diagram 11 Typical Loading Delay versus Load Capacitance under

Worst-Case Conditions for a Low-to-High Transition, 5 V 12 Typical Loading Delay versus Load Capacitance under

Worst-Case Conditions for a High-to-Low Transition, 5 V 13 168-Pin PGA Package Dimensions 14 Principal Dimensions and Data for 196-Lead Plastic Quad Flat Pack Package.........................36 15 Typical Lead for 196-Lead PQFP Package

Datasheet

Contents

Tables
1 The Embedded Intel486 SX Processor Family 6 2 Pinout Differences for 168-Pin PGA Package 9 3 Pin Assignment for 168-Pin PGA Package 9 4 Pin Cross Reference for 168-Pin PGA Package 11 5 Pin Assignment for 196-Lead PQFP Package 13 6 Pin Cross Reference for 196-Lead PQFP Package 14 7 Embedded Intel486 SX Processor Pin Descriptions 16 8 Output Pins 21 9 Input/Output 21 10 Test 21 11 Input 22 12 CPUID Instruction 23 13 Boundary Scan Component Identification Code 5 Volt Processor 24 14 Absolute Maximum Ratings 25 15 Operating Supply Voltages 26 16 5 V DC 26 17 5 V ICC Values 27 18 AC Characteristics 27 19 AC Specifications for the Test Access Port 29 20 168-Pin Ceramic PGA Package Dimensions 35 21 Ceramic PGA Package Dimension Symbols 35 22 Symbol List and Dimensions for 196-Lead PQFP Package 36 23 Thermal Resistance, qJA xC/W for the 196-Lead PQFP 38 24 Thermal Resistance, qJC xC/W for the 196-Lead PQFP 38 25 Thermal Resistance, qJA xC/W for the 168-Lead PQFP 38 26 Maximum Tambient TA, xC 38

Date August 2004

September 2001 December 1997

October 1995
003 002 001

To address the fact that many of the package prefix variables have changed, all package prefix variables in this document are now indicated with an "x".

Removed V device. Added 5 V PGA information. Updated related documents list. First release of this datasheet for embedded.

Datasheet

Intel486 SX Processor

Introduction

The embedded Intel486 SX processor provides high performance to 32-bit, embedded applications. Designed for applications that do not need a floating-point unit, the processor is ideal for embedded designs running DOS*, Microsoft* Windows*, OS/2*, or UNIX* applications written for the Intel architecture. Projects can be completed quickly by utilizing the wide range of software tools, utilities, assemblers and compilers that are available for desktop computer systems. Also, developers can find advantages in using existing chip sets and peripheral components in their embedded designs.

The embedded Intel486 SX processor is binary compatible with the Intel386 and earlier Intel processors. Compared with the Intel386 processor, it provides faster execution of many commonlyused instructions. It also provides the benefits of an integrated, 8-Kbyte, write-through cache for code and data. Its data bus can operate in burst mode which provides up to 106-Mbyte-per-second transfers for cache-line fills and instruction prefetches.

Intel’s SL technology is incorporated in the embedded Intel486 SX processor. Utilizing Intel’s System Management Mode SMM , it enables designers to develop energy-efficient systems.

Two component packages are available for 5-Volt designs. Both products operate at 33 MHz.
• 196-lead Plastic Quad Flat Pack PQFP
• 168-pin Grid Array PGA .

The embedded Intel486 SX processor offers these features:
• 32-bit RISC-Technology Core The embedded Intel486 SX processor performs a complete
set of arithmetic and logical operations on 8-, 16-, and 32-bit data types using a full-width ALU and eight general purpose registers.
• Single Cycle Execution Many instructions execute in a single clock cycle.
• Instruction Pipelining Overlapped instruction fetching, decoding, address translation and
execution.
• On-Chip Cache with Cache Consistency Support An 8-Kbyte, write-through, internal

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Datasheet ID: FA80486SXSF33 638946