November 27, 2014, Seoul – STMicroelectronics (ST), a global semiconductor company contributing to customers across a wide range of electronic applications, has launched the new ARM® Cortex®-M0 microcontroller STM32F091. This new product provides up to eight USARTs[1] that simplify multiplexed communication used in automotive in-vehicle audio and three-phase power meters, along with large-sized on-chip memory to address resource shortage issues common in similar devices for cost-sensitive applications.

The STM32F091 is equipped with up to 256 kilobytes of flash on-chip and 32 kilobytes of SRAM, sufficient for implementing a Java stack, and can replace applications where users previously chose larger and more expensive devices based on experience. Other versions of this product, including the economical 48-pin package, all feature at least 6 USARTs, three of which can support smart card and LIN[2], IrDA[3], and Modbus[4] modes.

It features a flexible power architecture that allows for analog circuitry. The analog components are equipped with a 1.0µs 12-bit ADC and a 2-channel 12-bit DAC, enabling operation at up to 3.6V over the maximum dynamic range. Digital circuitry operates at low voltages to minimize power consumption. I/O is individually driveable, allowing for direct connection to low-voltage companion chips, such as application processors, without the use of level shifters.

The STM32F091 supports built-in CAN 2.0A/B, making it suitable for automotive consumer products connected to vehicle networks, such as car radios, or for industrial control products. In addition to the integrated touch sensing controller, a SysTick timer and a Real-Time Clock are also available to assist with real-time performance and implement time and calendar functions.

The STM32F091 is available in various packages, including 48-pin and 64-pin versions, as well as the QFP100, which is resistant to saline atmospheres and suitable for smart utility meters in China. The STM32F091CBT6 in a QFP48 package with 128 kilobytes of built-in flash is priced at $1.59 per unit for orders of 10,000.

More detailed information can be found at the following site: www.st.com/stm32f0x1