STMicroelectronics Delivers New 32-bit ARM® Cortex(TM) Microcontrollers for Projects Needing Digital Signal Control at Competitive Cost
(Thomson Reuters ONE) -
STM32 F3 series boosts STM32 Cortex-M4 based portfolio to over 70 devices,
combining unprecedented analog peripheral integration with DSP and FPU-enhanced
core
Geneva, June 26, 2012 - STMicroelectronics (NYSE: STM), a global semiconductor
leader serving customers across the spectrum of electronics applications, is now
delivering the first samples of its new STM32 F3 series of microcontrollers to
major OEM customers, enabling early evaluation of this important new line in
ST's product family featuring the ARM(®) Cortex(TM)-M core embedded.
STM32 F3 microcontrollers are system-on-chip devices based on the Cortex-M4 core
with FPU, and are optimized for efficient handling and processing of mixed
signals in circuits such as three-phase motor controls, biometrics and
industrial sensor outputs or audio filters. They will help simplify design, cut
power consumption and reduce pc-board size in consumer, medical, portable
fitness, system monitoring and metering applications. The new F3 series extends
the scope of ST's STM32 family by allowing designers to tackle mixed-signal
control applications.
Featuring versatile analog circuitry and the ARM Cortex-M4 with FPU, the STM32
F3 series provides low to medium memory sizes at competitive cost. The Cortex-M4
with FPU core augments the proven Cortex-M3 CPU with additional Digital Signal
Processing (DSP) capability, optimized single-cycle and saturating arithmetic
instructions, and Floating-Point Unit (FPU), to boost performance over ST's
STM32 F1 Cortex-M3 devices. It positions the new series between the successful
STM32 F1 and the best-in-performance-class STM32 F4, which features the Cortex-
M4 with FPU core and large memory capacity combined with high-speed 168MHz
maximum CPU frequency for complex applications.
With the new F3 microcontrollers, ST's STM32 family now offers more than 350
variants addressing applications from entry-level, price-sensitive designs
through to those demanding high performance and rich on-chip features. The new
F3 series enables ST to deliver the advantages of its STM32 devices and
ecosystem to applications that have formerly required both high-performance
analog and an entry-level digital signal controller, such as high-performance
motor control or embedded digital audio.
"The new F3 series boosts our ARM Cortex-M4 portfolio to more than 70 devices,
and will help our customers design even more powerful products leveraging the
advantages of the STM32 family," said Michel Buffa, microcontroller division
general manager, STMicroelectronics. "Its advanced processor, high-quality
advanced analog peripherals and mid-density memory present a strong combination
unmatched by competing Cortex-based or proprietary devices."
STM32 F3 series devices also incorporate ST's latest improvements to digital
peripherals for its STM32 family, which Michel Buffa explains is a further
advantage of the extensive compatibility between all ST's ARM Cortex-M
microcontrollers.
Further technical information:
The STM32 F3 family featuring the ARM Cortex-M4 with FPU comprises four product
lines, differentiated according to on-chip memory density and integrated
peripherals. The peripherals deliver extreme analog integration, offering best-
in-class performance through functions such a 12-bit Analog-to-Digital Converter
(ADC) offering 5Msamples per second performance. Extreme analog integration
maximizes flexibility for designers to implement advanced system features and
functions without adding extra components on the pc-board.
STM32 F30x devices have seven fast comparators with 50ns response time, four
programmable gain amplifiers supporting four different gain settings with 1%
accuracy, two 12-bit digital-to-analog converters (DACs), and four 12-bit 5Msps
analog-to-digital converters (ADCs). This is the fastest ADC performance in any
ARM Cortex-M microcontroller, achieving up to 18Msps in interleaved mode. The
devices also have two advanced motor-control timers running at up to 144MHz.
These allow one microcontroller to manage two motors plus power factor
correction (PFC) via its on-chip analog peripherals, in equipment such as home
appliances. Among other capabilities of the advanced timers, timing resolution
better than 7ns allows new applications such as digital power supplies in
telecom infrastructure or data servers, micro-inverters in solar installation
and LED lighting to benefit from the scalability, low power consumption and
cost-effective performance of the STM32 family.
To help developers optimize code execution time, the STM32 F30x devices have
8Kbytes of SRAM mapped to the instruction bus as Core Coupled Memory (CCM-SRAM).
Critical routines loaded in the 8KB CCM at startup can be completed at full
speed with zero wait states, achieving 94 Dhrystone MIPS at 72MHz. This compares
with 62 DMIPS when executing from Flash or SRAM; equivalent to a 52% performance
increase for critical routines. The STM32 F30x series also has up to 40Kbytes of
SRAM mapped on the data bus. The 8K CCM-SRAM can also be used for data storage
with no performance trade-off. Devices are pin compatible with the STM32 F1
series, and also share the same API, which simplifies migration to higher
performing devices.
The STM32 F37x devices deliver a different blend of peripheral functions. They
are the first microcontrollers from ST to integrate a 16-bit Sigma-Delta ADC on-
chip, allowing the STM32 family to solve a wider range of precision-sensing
applications and providing a single-chip solution capable of replacing a
discrete general-purpose processor and separate ADC. Up to three 16-bit Sigma-
Delta ADCs are integrated on-chip, with separate analog supply from 2.2V to
3.6V, up to 21 single or 11 differential channels, and seven programmable gains
per channel.
Other STM32 F37x analog peripherals include two fast comparators, three 12-bit
DACs, and one 12-bit 1Msps ADC. There is also an enhanced CEC (Consumer
Electronics Control) unit, making these devices ideal for consumer multimedia
products. Compared to the STM32 F1 series, STM32 F37x devices provide a system-
on-chip solution enabling developers to reduce bill-of-materials cost and
simplify board designs.
Key common features of STM32 F30x/F37x:
* SRAM and CCM-SRAM with parity bit for secure software data and code
execution;
* Memory Protection Unit (MPU);
* Capacitive touch-sense capability (24 keys);
* Support for both USB and CAN connectivity;
* Communication peripherals: SPI 18Mbps, I²C 1MHz (fast mode plus), USART
9Mbps;
* Sub-ppm trimmable RTC with HW calendar
* Four low-power modes with 5µA STOP mode having waking-up capability from
communication peripherals with fast start-up time;
* 2µA standby mode with RTC running;
* below 1µA in Vbat mode (battery backup)
* Debug mode: serial wire debug (SWD), JTAG interfaces, Cortex-M4 ETM
* Power supplies: 2.0V to 3.6V or 1.8V+/-8% (dedicated sales types)
Prices for the STM32 F30x series start from $2.54 for the STM32F302 with
128Kbyte Flash in LQFP48 package up to $3.86 for the 256Kbyte STM32F303 in
LQFP100, for orders over 1000 pieces. The STM32 F37x starts from $2.24 for the
STM32F372 in LQFP48 with 64Kbyte, up to $3.69 for the STM32F373 LQFP100 with
256Kbyte. Other pricing options for higher quantities are available on request.
Both series are sampling now, to lead customers, and are scheduled to enter full
production in Q3 2012.
About STMicroelectronics
ST is a global leader in the semiconductor market serving customers across the
spectrum of sense and power technologies and multimedia convergence
applications. From energy management and savings to trust and data security,
from healthcare and wellness to smart consumer devices, in the home, car and
office, at work and at play, ST is found everywhere microelectronics make a
positive and innovative contribution to people's life. By getting more from
technology to get more from life, ST stands for life.augmented.
In 2011, the Company's net revenues were $9.73 billion. Further information on
ST can be found at www.st.com.
For Press Information Contact:
STMicroelectronics
Michael Markowitz
Director Technical Media Relations
+1 781 591 0354
michael.markowitz(at)st.com
STM32 F3 Microcontrollers from STMicroelectronics:
http://hugin.info/152740/R/1621932/518348.jpg
STM32 F3 Microcontrollers from STMicroelectronics:
http://hugin.info/152740/R/1621932/518345.pdf
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Source: STMicroelectronics via Thomson Reuters ONE
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Datum: 26.06.2012 - 13:00 Uhr
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News-ID 160077
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