Embedded MPU optimized for VoIP, HMI and security applications

The SPEAr300 is a member of the SPEAr family of embedded MPUs for networked devices.

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, SPEAr300 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 macro-cell) for debug operations.

A full set of peripherals allows the system to be used in many applications, some typical applications being HMI, Security and VoIP phones.

Key Features

  • SecurityC3 cryptographic accelerator
  • Connectivity2 x USB 2.0 HostUSB 2.0 DeviceFast Ethernet (MII port)1x SSP Synchronous serial peripheral (SPI, Microwire or TI protocol)1x I2 C1x I2 S,1x fast IrDA interface1x UART interfaceTDM bus (512 timeslots)Up to 8 additional I2 C/SPI chip selects
  • Miscellaneous functionsIntegrated real time clock, watchdog, and system controller8-channel 10-bit ADC, 1 Msps1-bit DACJPEG codec acceleratorSix 16-bit general purpose timers with capture mode and programmable prescalerUp to 62 GPIOs
  • ARM926EJ-S core up to 333 MHz
  • Dynamic power-saving features
  • High-performance 8-channel DMA
  • Memory32 KB ROM and 56 KB internal SRAMLPDDR-333/DDR2-666 external memory interface (up to 1 GB addressable memory)SDIO/MMC card interfaceSerial Flash memory interface (SMI)Flexible static memory controller (FSMC) up to 16-bit data bus width, supporting external SRAM, NAND/NOR Flash and FPGAsSerial SPI Flash interface
  • Peripherals supportedCamera interface (ITU-601/656 and CSI2 support)TFT/STN LCD controller (resolution up to 1024 x 768 and up to 24 bpp)Touchscreen support (using the ADC)9 x 9 keyboard controllerGlueless management of up to 8 SLICs/CODECs
  • Configurable peripheral functions on 102 shared I/Os


Technical Documentation

Product Specifications
Description Version Size
DS6500 DS6500: Embedded MPU with ARM926 core, flexible memory support, powerful connectivity features and human machine interface 2.2 1008 KB
Application Notes
Description Version Size
AN3100 AN3100: Configuring the SPEAr3xx multi-port memory controller (MPMC) for external DDR SDRAM 2.1 302 KB
AN3140 AN3140: How to configure the SPEAr3xx general purpose timers (GPTs) 1.2 266 KB
AN3099 AN3099: IBIS models for signal integrity simulation of SPEAr3xx applications 1.3 220 KB
AN2674 AN2674: PCB layout guidelines for SPEAr3xx 2.3 543 KB
AN3129 AN3129: Real-time performance using FIQ interrupt handling in SPEAr MPUs 1.3 188 KB
AN3123 AN3123: Using the UART interfaces in the SPEAr embedded MPU family 2.1 218 KB
AN2641 AN2641: Using the color LCD controller (CLCD) in the SPEAr embedded MPU family 1.4 419 KB
User Manuals
Description Version Size
UM0804 UM0804: EVALSPEAr300 - evaluation board for the SPEAr300 2.2 477 KB
UM1015 UM1015: EVALSPEAr320CPU SPEAr320 CPU evaluation board 1.0 1 MB
UM1535 UM1535: Getting started with SPEAr® Linux support package (LSP 3.2.5) 2.1 486 KB
UM0844 UM0844: Getting started with SPEAr® Linux support package (LSP2.3) 3.0 694 KB
UM0851 UM0851: Linux support package (LSP) v2.3 for SPEAr 2.2 3 MB
Reference Manuals
Description Version Size
RM0082 RM0082: SPEAr300 1.3 5 MB
Release Notes
Description Version Size
RN0081 RN0081: Linux support package (LSP) v3.2.3 for SPEAr eMPU family 2.1 217 KB
RN0082 RN0082: Linux support package (LSP) v3.2.5 for SPEAr eMPU family 1.1 237 KB
RN0053 RN0053: Linux support package for SPEAr (LSP) v 2.3 1.1 78 KB
RN0080 RN0080: Linux support package for SPEAr (LSP) v 2.3.2 1.1 86 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
PCB trace length worksheet for SPEAr3xx evaluation boards 2.1 20 KB

Publications and Collaterals

Description Version Size
SPEAr family of embedded microprocessors 2.2 732 KB

Tools and Software

Development Tools
Software Development Tools
Support & Community

Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
SPEAR300-2 LFBGA 289 15x15x1.7 Tray -40 85 NRND - - 5A002A4 5A002A4 SINGAPORE MORE INFO No availability reported, please contact our Sales office

(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SPEAR300-2 NRNDLFBGA 289 15x15x1.7-Ecopack2

(**) 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.