STM32F334

The STM32F334 is a family of MCUs from STMicroelectronics which uses the high-performance ARM® Cortex®-M4 processor core operating at a frequency of up to 72MHz. The MCUs feature a high-resolution timer, a peripheral unique to this family, which enables the implementation of precisely regulated digital power converters.

The STM32F334 devices incorporate high-speed memories, providing up to 64kbytes of Flash memory capacity and up to 12kbytes of SRAM. An extensive range of enhanced I/Os and peripherals is connected to two Advanced Peripheral Buses (APBs).

Among the peripherals included in the STM32F334 devices are two 12-bit ADCs operating at a rate of up to 5M samples/s, up to three fast comparators, an operational amplifier and three DAC channels. They also have a low-power real-time clock.

As well as the high-resolution timer, the STM32F334 family includes one general purpose 32-bit timer, one timer dedicated to motor control, and four general-purpose 16-bit timers. The MCUs also feature standard and advanced communication interfaces: one I2C, one serial peripheral interface, up to three USARTs and one CAN interface.

The use of two STM32F334 MCUs to control a fully digital 2kW AC-DC power supply is described in the Technical View on pages 26-27.

APPLICATIONS:

Infra-red remote controls
Vocoders

FEATURES:

Sleep, stop and stand-by low-power modes
Up to 51 fast I/O ports
7-channel DMA controller
Temperature sensor
Up to 18 capacitive sensing channels supporting touch keys, linear and rotary touch sensors
96-bit unique ID