STM32F334K6 by STMicroelectronics

The STM32F334x4/6/8 family features a high-performance Arm Cortex-M4 32-bit RISC core, operating up to 72 MHz with an embedded floating point unit (FPU), along with high-speed embedded memories (up to 64 Kbytes of Flash, up to 12 Kbytes of SRAM), and a wide array of enhanced I/Os and peripherals connected to two APB buses.

• Processor: High-performance Arm Cortex-M4 32-bit CPU with FPU (up to 72 MHz), featuring single-cycle multiplication and hardware division DSP instruction
• Cyclic Redundancy Check (CRC) unit
• Reset and power supply management
• Power-saving modes: Sleep, Stop, Standby
• Operating voltage range: 2.0 to 3.6 V (V DD, V DDA)
• Power-on/Power-down reset (POR/PDR)
• Voltage detector (PVD) for power management
• Backup power supply (V BAT) for RTC and backup registers
• Temperature sensing
• Interconnect matrix for efficient data routing
• Direct Memory Access (DMA) controller
• Analog-to-Digital Converter (ADC) with rapid conversion time (0.20 μs)
• Digital-to-Analog Converter (DAC) with analog supply
• Real-Time Clock (RTC) with alarm and periodic wakeup
• Communication interfaces: Controller Area Network (CAN), Serial Peripheral Interface (SPI), Inter-Integrated Circuit (I2C)