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SPEAr320S

Embedded MPU with ARM926 core for industrial and consumer applications
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The STM32F302xx/STM32F303xx family is based on the high-performance ARM® Cortex™-M4 32-bit RISC core operating at a frequency of up to 72 MHz, and embedding a floating point unit (FPU), a memory protection unit (MPU) and an embedded trace macrocell (ETM). The family incorporates high-speed embedded memories (up to 256 Kbytes of Flash memory, up to 48 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses.

The devices offer up to four fast 12-bit ADCs (5 Msps), up to seven comparators, up to four operational amplifiers, up to two DAC channels, a low-power RTC, up to five general-purpose 16-bit timers, one general-purpose 32-bit timer, and two timers dedicated to motor control. They also feature standard and advanced communication interfaces: up to two I2Cs, up to three SPIs (two SPIs are with multiplexed full-duplex I2Ss on STM32F303xx devices), three USARTs, up to two UARTs CAN and USB. To achieve audio class accuracy, the I2S peripherals can be clocked via an external PLL.

The STM32F302xx/STM32F303xx family operates in the -40 to +85 °C and -40 to +105 °C temperature ranges from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.

The STM32F302xx/STM32F303xx family offers devices in three packages ranging from 48 pins to 100 pins.

The set of included peripherals changes with the device chosen.

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Errata Sheet
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Datasheet

Key Features

  • Core: ARM® 32-bit Cortex™-M4F CPU (72 MHz max), single-cycle multiplication and HW division, DSP instruction with FPU (floating-point unit) and MPU (memory protection unit).
  • Operating conditions:
  • VDD, VDDAvoltage range: 2.0 V to 3.6 V
  • Memories
  • 128 to 256 Kbytes of Flash memory
  • Up to 40 Kbytes of SRAM on data bus with HW parity check
  • 8 Kbytes of SRAM on instruction bus with HW parity check (CCM)
  • CRC calculation unit
  • Reset and supply management
  • Power-on/Power down reset (POR/PDR)
  • Programmable voltage detector (PVD)
  • Low power modes: Sleep, Stop and Standby
  • VBAT supply for RTC and backup registers
  • Clock management
  • 4 to 32 MHz crystal oscillator
  • 32 kHz oscillator for RTC with calibration
  • Internal 8 MHz RC with x 16 PLL option
  • Internal 40 kHz oscillator
  • Up to 87 fast I/Os
  • All mappable on external interrupt vectors
  • Several 5 V-tolerant
  • 12-channel DMA controller
  • Up to four ADC 0.20 μS (up to 39 channels) with selectable resolution of 12/10/8/6 bits, 0 to 3.6 V conversion range, separate analog supply from 2 to 3.6 V
  • Up to two 12-bit DAC channels with analog supply from 2.4 to 3.6 V
  • Seven fast rail-to-rail analog comparators with analog supply from 2 to 3.6 V
  • Up to four operational amplifiers that can be used in PGA mode, all terminal accessible with analog supply from 2.4 to 3.6 V
  • Support for up to 24 capacitive sensing keys supporting touchkey, linear and rotary touchsensors
  • Up to 13 timers
  • One 32-bit timer and two 16-bit timers with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
  • Up to two 16-bit 6-channel advanced-control timers, with up to 6 PWM channels, deadtime generation and emergency stop
  • One 16-bit timer with 2 IC/OCs, 1 OCN/PWM, deadtime generation and emergency stop
  • Two 16-bit timers with IC/OC/OCN/PWM, deadtime generation and emergency stop
  • Two watchdog timers (independent, window)
  • SysTick timer: 24-bit downcounter
  • Up to two 16-bit basic timers to drive the DAC
  • Calendar RTC with Alarm, periodic wakeup from Stop/Standby
  • Communication interfaces
  • CAN interface (2.0B Active)
  • Two I2C Fast mode plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from STOP
  • Up to five USART/UARTs (ISO 7816 interface, LIN, IrDA, modem control)
  • Up to three SPIs, two with multiplexed I2S interface, 4 to 16 programmable bit frame
  • USB 2.0 full speed interface
  • Infrared Transmitter
  • Serial wire debug, JTAG, Cortex-M4F ETM
  • 96-bit unique ID

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS8759: Embedded MPU with ARM926 core for industrial and consumer applications
2.0 1,519 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
UM1015: EVALSPEAr320CPU SPEAr320 CPU evaluation board
1.0 1,381 KB
pdf
UM1535: Getting started with SPEAr® Linux support package (LSP 3.2.5)
2.0 486 KB

Reference Manual

Description Version Size
pdf
RM0082: SPEAr300
1.2 5,979 KB
pdf
RM0319: SPEAr320S architecture and functionality
4.0 3,441 KB
pdf
RM0321: SPEAr320S address map and registers
3.0 3,615 KB

Release Notes

Description Version Size
pdf
RN0081: Linux support package (LSP) v3.2.3 for SPEAr eMPU family
2.0 218 KB
pdf
RN0082: Linux support package (LSP) v3.2.5 for SPEAr eMPU family
1.0 237 KB

Presentations & Training Material

Presentations

Description Version Size
pdf
DLMS/COSEM solution for power-line communication
1.1 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
EVALSP320SPLC SPEAr320S evaluation kit for PLC applications
EVALSP320SCPU SPEAr320S CPU evaluation board
EVALSP320SHMI SPEAr320S HMI evaluation board
STSW-SPEAR020 EVALSP320S Flash Images (XLoader/U-Boot/Linux)
STSW-SPEAR010 Root Filesystem Flash Image for NAND (small page)
STSW-SPEAR011 Root Filesystem Flash Image for serial NOR
STSW-SPEAR012 Root Filesystem Flash Image for NAND (large page)
STSW-SPEAR013 EVALSP320SHMI Flash Images (XLoader/U-Boot/Linux)
STSW-SPEAR009 USB flasher for SPEAR

Publications and Collaterals

Flyer

Description Version Size
pdf
SPEAr320S embedded microprocessor
1.0.0 292 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$)*
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Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
SPEAR320S-2ActiveLFBGA 289Tray-4085_-Distributor reported inventory date: 2015-09-02
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA14722756
ARROWOrder NowEUROPE2520
RUTRONIKOrder NowEUROPE639126
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(*) 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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