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SPEAr320

Embedded MPU optimized for factory automation and consumer applications
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The SPEAr320 is a member of the SPEAr family of embedded MPUs, optimized for industrial automation and consumer applications. It is based on the powerful ARM926EJ-S processor (up to 333 MHz), widely used in applications where high computation performance is required.

In addition, SPEAr320 has an MMU that allows virtual memory management - making the system compliant with Linux operating system. It also offers 16 KB of data cache, 16 KB of instruction cache, JTAG and ETM (Embedded Trace Macrocell) for debug operations.

A full set of peripherals allows the system to be used in many applications, some typical applications being factory automation, printer and consumer applications.

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Errata Sheet
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Datasheet

Key Features

  • ARM926EJ-S 333 MHz core
  • High-performance 8-channel DMA
  • Dynamic power-saving features
  • Configurable peripheral functions on 102 shared I/Os.
  • Memory:
  • 32 KB ROM and 8 KB internal SRAM
  • LPDDR-333/DDR2-666 external memory interface
  • SDIO/MMC card interface
  • Serial Flash memory interface (SMI)
  • Flexible static memory controller (FSMC) up to 16-bit data bus width, supporting NAND Flash
  • External memory interface (EMI) up to 16-bit data bus width, supporting NOR Flash and FPGAs
  • Security
  • Cryptographic accelerator
  • Connectivity
  • 2 x USB 2.0 Host
  • 1 x USB 2.0 Device
  • 2 x Fast Ethernet ports (for external MII/SMII PHY)
  • 2 x CAN interface
  • 3 x SSP Synchronous serial port (SPI, Microwire or TI protocol)
  • 2 x I2C
  • 1 x fast IrDA interface
  • 3 x UART interface
  • 1 x standard parallel device port
  • Peripherals supported
  • TFT/STN LCD controller (resolution up to 1024 x 768 and up to 24 bpp)
  • Touchscreen support
  • Miscellaneous functions
  • Integrated real time clock, watchdog, and system controller
  • 8-channel 10-bit ADC, 1 Msps
  • 4 x PWM timers
  • JPEG CODEC accelerator
  • 6x 16-bit general purpose timers with programmable prescaler, 4 capture inputs
  • Up to 102 GPIOs with interrupt capability

Circuit Diagram

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS6590: Embedded MPU with ARM926 core, optimized for factory automation and consumer applications
5.0 903 KB

Application Notes

Description Version Size
pdf
AN2641: Using the color LCD controller (CLCD) in the SPEAr embedded MPU family
1.3 419 KB
pdf
AN2674: PCB layout guidelines for SPEAr3xx
2.2 544 KB
pdf
AN3099: IBIS models for signal integrity simulation of SPEAr3xx applications
1.2 220 KB
pdf
AN3100: Configuring the SPEAr3xx multi-port memory controller (MPMC) for external DDR SDRAM
2.0 302 KB
pdf
AN3123: Using the UART interfaces in the SPEAr embedded MPU family
2.0 218 KB
pdf
AN3129: Real-time performance using FIQ interrupt handling in SPEAr MPUs
1.2 188 KB
pdf
AN3140: How to configure the SPEAr3xx general purpose timers (GPTs)
1.1 267 KB

User Manual

Description Version Size
pdf
UM0842: EVALSPEAr320PLC evaluation board for the SPEAr320
4.0 806 KB
pdf
UM0844: Getting started with SPEAr® Linux support package (LSP2.3)
3.0 702 KB
pdf
UM0851: Linux support package (LSP) v2.3 for SPEAr
2.1 3,911 KB
pdf
UM1015: EVALSPEAr320CPU SPEAr320 CPU evaluation board
1.0 1,381 KB
pdf
UM1038: Hardware interconnection of the STM32?, SPEAr?3xx, and ST75xx
1.0 797 KB
pdf
UM1045: EVALSPEAr320HMI SPEAr320 expansion board for HMI applications, revision 2
3.0 824 KB

Reference Manual

Description Version Size
pdf
RM0082: SPEAr300
1.1 5,979 KB
pdf
RM0307: SPEAr320 architecture and functionality
1.0 3,115 KB
pdf
RM0308: SPEAr320 address map and registers
1.0 3,395 KB

Release Notes

Description Version Size
pdf
RN0053: Linux support package for SPEAr (LSP) v 2.3
1.0 81 KB
pdf
RN0080: Linux support package for SPEAr (LSP) v 2.3.2
1.0 86 KB

Errata Sheet

Description Version Size
pdf
ES0134: SPEAr320 embedded MPU known limitations
2.1 57 KB

Presentations & Training Material

Presentations

Description Version Size
pdf
DLMS/COSEM solution for power-line communication
1.0.0 1,047 KB
pdf
Getting started with Linux OS for SPEAr eMPUs
2.4 107 KB
pdf
SPEAr customizable processors
1.0 478 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
zip
PCB trace length worksheet for SPEAr3xx evaluation boards
1.1.0 20 KB

Related Tools and Software

Related Tools and Software

Part Number Description
EVALSPEAr320CPU SPEAr320 CPU evaluation board
EVALSPEAr320HMI SPEAr320 evaluation board for HMI applications
EVALSPEAr320PLC SPEAr320 evaluation board for PLC applications
STSW-SPEAR003 EVALSPEAR320CPU Flash Images
STSW-SPEAR004 EVALSPEAr320HMI Flash Images
STSW-SPEAR005 EVALSPEAR320PLC Flash Images
STSW-SPEAR007 STLinux for SPEAr Install Script and User Manual
STSW-SPEAR008 USB Flasher (Windows PC)

Publications and Collaterals

Flyer

Description Version Size
pdf
SPEAr320
1.0 301 KB

Brochure

Description Version Size
pdf
SPEAr family of embedded microprocessors
1.0.0 732 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
SPEAR320-2ActiveLFBGA 289 15x15x1.7Tray-4085_-Distributor reported inventory date: 2014-04-18
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA313756
MOUSEROrder NowWORLDWIDE1091
Ecopack2-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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