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楼主觉得 STM32F030R8 如何

价格应该和STC15F2K61S2差不多

看性能

• Core: ARM®32-bit Cortex™-M0 CPU, frequency up to 48 MHz
• Memories
• 16 to 64 Kbytes of Flash memory
• 4 to 8 Kbytes of SRAM with HW parity checking
• CRC calculation unit
• Reset and power management
• Voltage range: 2.4 V to 3.6 V
• Power-on/Power down reset (POR/PDR)
• Low power modes: Sleep, Stop, Standby
• Clock management
• 4 to 32 MHz crystal oscillator
• 32 kHz oscillator for RTC with calibration
• Internal 8 MHz RC with x6 PLL option
• Internal 40 kHz RC oscillator
• Up to 55 fast I/Os
• All mappable on external interrupt vectors
• Up to 36 I/Os with 5 V tolerant capability
• 5-channel DMA controller
• 1 x 12-bit, 1.0 μs ADC (up to 16 channels)
• Conversion range: 0 to 3.6 V
• Separate analog supply from 2.4 up to 3.6 V
• Up to 10 timers
• One 16-bit 7-channel advanced-control timer for 6 channels PWM output, with deadtime generation and emergency stop
• One 16-bit timer, with up to 4 IC/OC, usable for IR control decoding
• One 16-bit timer, with 2 IC/OC, 1 OCN, deadtime generation and emergency stop
• Two 16-bit timers, each with IC/OC and OCN, deadtime generation, emergency stop and modulator gate for IR control
• One 16-bit timer with 1 IC/OC
• One 16-bit basic timer
• Independent and system watchdog timers
• SysTick timer: 24-bit downcounter
• Calendar RTC with alarm and periodic wakeup from Stop/Standby
• Communication interfaces
• Up to two I2C interfaces: one supporting Fast Mode Plus (1 Mbit/s) with 20 mA current sink
• Up to two USARTs supporting master synchronous SPI and modem control; one with auto baud rate detection
• Up to two SPIs (18 Mbit/s) with 4 to 16 programmable bit frame
• Serial wire debug (SWD)