Maker : Intel
Part No. : 80386SXSA

  Datasheet PDF : 80386SXSA.pdf
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Product Information

Intel386™ SXSA EMBEDDED MICROPROCESSOR ■ Static Intel386™ CPU Core ■ Integrated Memory Management Unit — Low Power Consumption — Operating Power Supply 4.5V to 5.5V - 25 and 33 MHz 4.75V to 5.25V - 40 MHz — Operating Frequency SA-40 = 40 MHz SA-33 = 33 MHz SA-25 = 25 MHz ■ Clock Freeze Mode Allows Clock Stopping at Any Time ■ Full 32-bit Internal Architecture (MMU) — Virtual Memory Support — Optional On-chip Paging — 4 Levels of Hardware-Enforced Protection — MMU Fully Compatible with 80286 and Intel386 DX Processors ■ Virtual 8086 Mode Allows Execution of 8086 Software in a Protected and Paged System ■ Large Uniform Address Space ■ On-chip Debugging Support Including Breakpoint Registers ■ Complete System Development Support ■ High Speed CHMOS Technology ■ 100-Pin Plastic Quad Flatpack Package ■ High-performance 16-bit Data Bus — Two-clock Bus Cycles — Address Pipelining Allows Use of Slower, Inexpensive Memories The Intel386™ SXSA embedded microprocessor is a 5-volt, 32-bit, fully static CPU with a 16-bit external data bus and a 24-bit external address bus. The Intel386 SXSA CPU brings the vast software library of the Intel386 architecture to embedded systems. It provides the performance benefits of 32-bit programming with the cost savings associated with 16-bit hardware systems. The Intel386 SXSA microprocessor is manufactured on Intel’s 0.8-micron CHMOS V process. This process provides high performance and low power consumption for power-sensitive applications. Figure 3 and Figure 4 illustrate the flexibility of low power devices with respect to temperature and frequency relationships. w w w Information in this document is provided solely to enable use of Intel products. Intel assumes no liability whatsoever, including infringe-ment of any patent or copyright, for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products. Information contained herein supersedes previously published specifications on these devices from Intel. . at d sh a et e u. 4 om c Copyright© INTEL Corporation, 2002 June 2002 Order Number: 272419-004 www.DataSheet4U.com — 8-, 16-, 32-bit Data Types — 8 General Purpose 32-bit Registers ■ Runs Intel386 Architecture Software in a Cost-effective, 16-bit Hardware Environment — Runs Same Applications and Operating Systems as the Intel386 SX and Intel386 DX Processors — Object Code Compatible with 8086, 80186, 80286, and Intel386 Processors ■ TTL-Compatible Inputs — 16 Megabyte Physical — 64 Terabyte Virtual — 4 Gigabyte Maximum Segment Size ■ Numerics Support Intel387™ SX and Intel387™ SL Math Coprocessors Intel386™ SXSA EMBEDDED MICROPROCESSOR Segmentation Unit 32 Effective Address Bus 32 Effective Address Bus 3-Input Adder Descriptor 32 Register Limit and Attribute PLA Protection Test Unit Bus Bus Paging Unit Bus Control Physical Address Bus Adder Request Prioritizer Page Cache Control and Attribute PLA 27 Code Fetch/Page Table Fetch HOLD, RESET INTR, NMI ERROR# BUSY#,HLDA Address Driver Pipeline/ Bus Size Control MUX/ Transceivers Control BLE#, BHE# A23:1 Internal Control Bus Displacement Linear Address 32 M/IO#, D/C# W/R#, LOCK# ADS#, NA# READY# Status Multiply/ Flags Divide Register File Barrel Shifter/ Adder Decode and Sequencing Instruction Decoder Code 3-Decoded Stream Instruction Queue 32 Instruction Predecode Dedicated ALU Bus Prefetcher/ Limit Checker 16-Byte Code Queue Instruction Prefetch D15:0 ALU Control Control ROM Control ALU 32 A2298-01 Figure 1. Intel386™ SXSA Microprocessor Block Diagram 2 Intel386™ SXSA EMBEDDED MICROPROCESSOR 1.0 PIN ASSIGNMENT D1 D2 Vss Vcc D3 D4 D5 D6 D7 Vcc D8 D9 D10 D11 D12 Vss Vcc D13 D14 D15 A23 A22 Vss Vss A21 D0 Vss HLDA HOLD Vss NA# READY# Vcc Vcc Vcc Vss Vss Vss Vss CLK2 ADS# BLE# A1 BHE# NC Vcc Vss M/IO# D/C# W/R# 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2...

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