STM32F3x8为混合信号MCU，使用ARM Cortex-M4内核（DSP、FPU），运行于72 MHz。
该器件配有：
- 快速和超快速比较器（<30 ns）
- 具有可编程增益的运算放大器（PGA）
- 12位DAC
- 超快速12位ADC，单通道每秒5 M次采样（工作电压可低至1.8V）
- 16位sigma-delta ADC、21条单通道或11条差分通道、每条通道均具有7种可编程增益
- 快速144 MHz电机控制定时器（分辨率 < 7 ns）
- CAN 2.0B通信接口
STM32F3x8器件由外部稳压器供电，工作于1.8 V +/-8%
它能进一步节省系统功耗，尤其适合低电压工作设备，例如消费电子、游戏应用，或传感器集线器。1.8V的工作电压使其可直接与1.8V的应用处理器接口，但若使用可选的模拟模块单独供电时，可达到最大动态范围的模拟输入。
存储器范围为32到256K字节，封装为32到100引脚。
2014年第三季度将提供384和512 K字节闪存及144引脚的版本。
| STM32F3的其他产品线可覆盖不同的电压范围 | ||
|---|---|---|
| 1.8V（+/- 8%） | 3.3V (2.0V … 3.6V) | |
通用 | STM32F398 | STM32F303 |
| STM32F318 | STM32F301 | |
高精度测量 | STM32F378 | STM32F373 |
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