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Date: 24th Feb 2010
ST Micro's new STM32 MCUs with up to 1MB
of flash memory
ST Microelectronics has redesigned STM32 microcontroller
family Microcontroller chips to increase its on-chip flash
memory to 1-Mbyte enabling these MCUs to support next-generation
graphical user interfaces for consumer and industrial products.
With the introduction of these STM32 XL-density devices,
ST now has 99 STM32 variants; what it claims as, the industry's
largest family of microcontrollers using the advanced ARM
Cortex-M3 32-bit processor core, offering a range of memory
densities, operating speeds, and integrated features to
solve diverse application demands. All STM32 devices are
pin and software compatible, and share from a common pool
of peripherals. ST says, this commonality allows developers
to upgrade products with minimal redesign, and to re-use
their intellectual property, tools and hardware in multiple
projects to reduce costs and speed-up time to market.
The other features of the STM32 XL-density devices are
additional high-speed volatile memory (RAM), up to 96KB
and six more timers. The new Memory Protection Unit (MPU)
in this family allows new applications to protect specific
code or data during execution. This feature permits efficient
use of existing certified software modules in projects such
as medical or metering equipment, saving the time and cost
to re-certify the complete application.
The 1MB Flash memory is organized in two banks of 512Kbytes
to enable safe upgrading of applications in the field by
uploading new software into the second memory bank. The
update can then be copied across safely into the main bank,
and the process managed to protect against hazards such
as power loss while the upgrade is being applied.
The complete STM32 product portfolio includes the Access
Line devices, the USB Access Line with on-chip USB support,
the 72MHz Performance Line with USB and CAN, and the Connectivity
Line supporting Ethernet, USB OTG and dual CAN.
Availability: Now in samples, volumes in 2nd quarter of
2010.
Price:
STM32F101RFT6 (768Kbyte Flash and LQFP64 package): Each
$4.78 for 10K pieces
STM32F103RGZ6 (1MByte Flash and LQFP144 package): Each $7.11
for 10K pieces
ST's website is www.st.com
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