subject: Stmicroelectronics Pushed All [print this page] Compared with some established players, ST Semiconductor MCU can only be considered in the field of a recruit, the launch of the first MCU only five years ago, but with high-tech and deep technology from the accumulation of one to enter the market to show strong momentum. According to market research firm
Databean statistics, in 2008, STMicroelectronics MCU market share in the global ranking of seventh, accounting for 7% of market share, ranked Texas Instruments, Atmel and NXP before. In the Chinese market, its market share is up fifth. Entered this year, despite the global economic downturn, STMicroelectronics new product development in the MCU power is still frequently made, following the early introduction of Internet applications for embedded ARMCortex-M3 core-based STM32 family of 32-bit processors, the recently Also released for the low-power applications using 130nm process technology for ultra low power 8-bit microprocessor STM8L series, showing its commitment to a comprehensive attack MCU market.
According to STMicroelectronics, Greater China marketing manager, Microcontroller Business Unit JamesWiart introduced new series uses 8-bit RISC STM8L core, running at the 16MHz frequency, processing performance to 16MIPS, it has been able to achieve ultra-low power consumption mainly due to technology improvements. "STM8L based on advanced 0.13 m process with very low leakage current, which greatly improved the device's dynamic and static power consumption." He explained.
In the new process based on the ST-specific 8-bit and 32-bit microcontroller developed ultra-low power technology platform, in addition to the existing energy-saving micro-controller technology, the platform also integrates a low power consumption of embedded memory and analog circuits, can be the whole 1.65V to 3.6V Power supply Voltage range supports a maximum operating frequency, give full play to the full performance of CPU. As a result of an on-chip voltage regulator, power has nothing to do with the Vdd voltage, and thus has a higher design flexibility, and help to simplify product design.
In addition, low-power mode with a variety of microcontrollers can also STM8L from a completely closed to the ultra-low frequency continuous monitoring of the operational requirements of different applications, including low-power operation mode, low power standby mode take the initiative to stop mode (real-time clock running) and stop mode. Low-power operating mode in which CPU is still running, code is executed in RAM, the low-speed Oscillator Provide clock, low-speed external oscillator / CPU clock speed RC oscillator, voltage regulator in a low-power mode, under the current value in the 3V/25 5.4 A; low-power standby mode is to maintain the RTC to run, other things based option is activated, EEPROM is closed, voltage regulator in a low power state, CPU stop, then a typical current of 3.3 A; in stop mode current only 0.35 A, wake-up time was only 4 s.
In addition, the ultra-low power platform also implements an advanced and flexible to support multiple internal and external clock sources, clock system, this feature allows developers to optimize the frequency and real-time clock source, the lowest possible power consumption to meet the application requirements .
Wiart "The new ultra-low power STM8L with our existing 8-bit MCUSTM8S fully compatible with the same instruction set and peripherals, and even development tools are the same," Wiart said
"This system developers can easily use the low-power MCU for new product development." He disclosed that the new platform of ultra-low-power 32-bit MCUSTM32L series is also coming soon, mainly for high-end applications, MCU market in order to complete the full layout.
