Описание
The STM32F334 family is based on the high-performance ARM® Cortex® -M4 32-bit RISC core with FPU operating at a frequency of 72 MHz, and embedding a floating point unit (FPU), a memory protection unit (MPU) and an embedded trace macrocell (ETM). The family incorporates high-speed embedded memories (512 Kbyte Flash memory, 64 Kbyte SRAM), a flexible memory controller (FSMC) for static memories (SRAM, PSRAM, NOR and NAND), and an extensive range of enhanced I/Os and peripherals connected to an AHB and two APB buses. The devices offer two fast 12-bit ADCs (5 Msps), four comparators, two operational amplifiers, one DAC channel, a low-power RTC, up to two general-purpose 16-bit timers, one general-purpose 32-bit timer, and one timer dedicated to motor control. They also feature standard and advanced communication interfaces: up to three I2Cs, up to four SPIs (two SPIs are with multiplexed full-duplex I2Ss), three USARTs, up to two UARTs, CAN and USB. To achieve audio class accuracy, the I2S peripherals can be clocked via an external PLL. The STM32F334 family operates in the -40 to +85°C and -40 to +105°C temperature ranges from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.
Core: ARM® Cortex® -M4 32-bit CPU with 72 MHz FPU, single-cycle multiplication and HW division, DSP instruction and MPU (memory protection unit) Operating conditions Memories CRC calculation unit Reset and supply management Clock management Up to 115 fast I/Os Interconnect matrix 12-channel DMA controller Two ADCs 0.20 µs (up to 18 channels) with selectable resolution of 12/10/8/6 bits, 0 to 3.6 V conversion range, separate analog supply from 2.0 to 3.6 V One 12-bit DAC channels with analog supply from 2.4 to 3.6 V Four ultra-fast rail-to-rail analog comparators with analog supply from 2.0 to 3.6 V Two operational amplifiers that can be used in PGA mode, all terminals accessible with analog supply from 2.4 to 3.6 V Up to 24 capacitive sensing channels supporting touchkey, linear and rotary touch sensors Up to 11 timers Calendar RTC with Alarm, periodic wakeup from Stop/Standby Communication interfaces SWD, Cortex® -M4 with FPU ETM, JTAG 96-bit unique ID
