Home |  Directory |  Search |  GET LISTED! | Services | Advertise? | FAQ | Link to Us | Contact
Your country: United States
Category: Embedded System Product News

New ARM Cortex Family from ST Boasts LOW Power

By Bill Giovino
Jun 11, 2007 - 6:18:00 PM

 
New ARM Cortex STM32 family from STMicroelectronics boasts very low power and flexible peripherals.
Email this page Printer friendly page

Share: Share this on LinkedIn ReTweet This Share on Facebook
del.icio.us Yahoo! MyWeb Digg StumbleUpon reddit Furl Blinklist Spurl  

Subscribe to this RSS feed!

June 11, 2007 (Microcontroller.com) - A new ARM Cortex-M3 STM32 family has been announced by STMicroelectronics. Based on the ARM Cortex-M3 core, it is similar to the ARM7 programming model except that the Cortex boasts a Harvard architecture.

Harvard architectures have separate instruction and data buses (and consequentially separate instruction and data memories) and can run with significant speed advantages over linear Von Neumann cores. For deterministic code, the Cortex core can perform a simultaneous instruction and data fetch, which for pipelined architectures results in a single-cycle core. The disadvantage of a Harvard Architecture microcontroller is that because instruction and data memory do not share the same PHYSICAL bus, there can be a reduced level of flexibility in the hardware for some applications.

From a programmer's point of view, STMicroelectronics' implementation of the ARM Cortex does not overlap the instruction and data memory address locations.

At present, the only other significant licensee of the ARM Cortex is Texas Instruments. Luminary Micro of Austin, Texas is also a Cortex licensee; however, Luminary Micro is a startup company with seed funding from ARM, representing ARM's intent to compete with their own licensees and making many major microcontroller manufacturers wary to adopt the Cortex; however, in the words of Carol Brown of ST's U.S. Media Relations, ST expects to compete against Luminary because of "more enticing manufacturing plants".

ARM Cortex Roadmap
ARM Cortex Roadmap

The new ARM Cortex STM32 family boasts a low power rating of 0.5mA/MHz. The STM32 ARM Cortex is available in two product families: the "Performance" line boasts a 72MHz core speed with a 24MHz on-chip Flash speed, while the "Access" line has a 36MHz clock and plenty of peripherals.

Other features of the Cortex STM32 family include:

  • ARM Cortex core @ 72MHz in 0.18µ CMOS
  • ARM Cortex Thumb2 Instruction Set
  • Up to 128KByte embedded Flash
  • Up to 20KByte SRAM
  • 36mA @ 72MHz run
  • Power-On Reset
  • Power-Down Reset
  • Voltage Supervisor
  • 2.0V to 3.6V supply
  • On Chip 8MHz RC oscillator
  • Embedded 4-16MHz oscillator for external crystal
  • Separate oscillators for the core (requires external crystal), and 32kHz RTC (uses on-board RC oscillator)
  • Single cycle multiply (16x16, 16x32, 32x32 with 32-bit destination)
  • Full 32x32 Multiply with 64-bit destination in 7 cycles max.
  • Up to 3 16-bit timers
  • Dedicated 6 PWM timer
  • 7 DMA channels
  • CAN or USB (both share a packet buffer, and therefore cannot be implemented together)
  • 12-bit ADC with 1µ conversion time
  • Up to 3 USARTs
  • Up to 2 SPI (18MHz Master/Slave)
  • 6 cycle interrupt
  • Nested interrupts

ARM Cortex Low Power Operation
ARM Cortex Low Power Operation

Designed for low power systems, the ARM Cortex STM32 microcontroller family operates from a 2.0 to 3.6V power supply and draws as little as 2 microamps in standby mode with reset circuitry active. Four sophisticated low power modes are available.

An Access Line 48-pin STM32 in LQFP with 32KBytes of Flash will sell for U.S. $1.80 in quantities of 10Ku.

About STMicroelectronics
"With headquarters in Italy, the United States, and France, STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2006, the Company's net revenues were $9.85 billion and net earnings were $782 million."

© Microcontroller.com. All Rights Reserved.

New ARM Cortex Family from ST Boasts LOW Power

This Article has been seen 15584 times

Product data and specifications in this article are the responsibility of the manufacturer. No warrenty is expressed or implied as to the accuracy of manufacturer-supplied data. So there.
Embedded Systems News  - Recent Headlines
·Microchip PIC32MZ Flash Microcontroller is the World's Fastest 32-bit MCU
·Microchip PIC24F KM Webinar
·Choosing A Microcontroller Architecture Part 1
·New Atmel SAMD20 Cortex-M0+ Microcontrollers
·Silicon Labs Buys Energy Micro
·Zilog Buys Microcontroller Product Lines from Samsung
·Texas Instruments introduces new Tiva ARM Cortex-M4 Microcontrollers
·You Might Be an Engineer If
·Microchip and Digilent Bring Arduino to PIC32 Microcontrollers
·Atmel SAMA5D3 has Lots of Power and Linux Development
·The Good Ol Days of Semiconductors Part 2
·Renesas RL78-G14 Microcontroller Demo Kit is a Neat Tool Toy
·National Semiconductor - the Good Ol Days of Semis
·Microchip Introduces MPLAB XC32++ Free PIC32 C++ Compiler
·Freescale Kinetis L-Series Based on ARM Cortex-M0+ Core
·Microchip Introduces 8-bit PIC16F145X/PIC18F97J94 with Crystal-Free USB LCD and EEPROM
·Silicon Labs C8051F37x/C8051F39x 8-bit Microcontrollers have EEPROM and Really High Resolution Analog
·STMicroelectronics Introduces STM32-F3 with FPU
·LinkedIn Hacked, Passwords Please No Salt
·Silicon Labs Buys Ember

Main Menu
Site Status Now
  • ·44 Online Now
  • ·3653 Total Online Since 12/9/2016 8:14:50 AM boot
  Partners

SFO Takumi - Motor Control ICs

SFO Takumi's Kyopal line of ULTRA-high accuracy Motor Control ICs simplify the design of motor control applications by providing high resolution, motion smoothness and system robustness.
 
Supports 2, 4, and 8 axes control for all stepping motors and pulse train input type servo motors. Get some...


Dependable Designs: Fast, Friendly, and of Course, Dependable!

Looking for a quick-turn Embedded Systems Design Engineering Service? Welcome to Dependable Designs.

Need a complex design for your startup company? Or something as simple as a college project? Outsource your Engineering services to friendly, experienced people. Click to learn more...


Getting Listed

Submit Your Website to this Embedded Systems Directory
Drive traffic to your website. Benefit from exposure to our tens of thousands of monthly visitors, get extra traffic for your embedded systems related website, and increase your search-engine ranking with a link in our directory. Here's how:


Resources

Mobile Web Made Easy


Recent Microcontroller.com visitors where location can be determined.

Embedded Systems News 
Embedded System Product News
Development Tools News
Embedded Business News
Embedded Networking
Embedded IP
Bits and Bytes
Embedded Systems News 
Latest Headlines
Microchip PIC32MZ Flash Microcontroller is the World's Fastest 32-bit MCU
Microchip PIC24F KM Webinar
Choosing A Microcontroller Architecture Part 1
New Atmel SAMD20 Cortex-M0+ Microcontrollers
Silicon Labs Buys Energy Micro
Zilog Buys Microcontroller Product Lines from Samsung
Texas Instruments introduces new Tiva ARM Cortex-M4 Microcontrollers
You Might Be an Engineer If
Microchip and Digilent Bring Arduino to PIC32 Microcontrollers
Atmel SAMA5D3 has Lots of Power and Linux Development
Home |  Directory |  Search |  GET LISTED! | Services | Advertise? | FAQ | Link to Us | Contact
-0-12/10/2016