STM32G4x4高分辨率系列专门针对数字电源转换应用，例如D-SMPS、照明、焊接、太阳能系统逆变器及无线充电器。
STM32G4x4的主要外设有：
- 高分辨率定时器：184 ps，对供电和温度漂移可实现自补偿
- 5个超快速12位ADC（4 Msamples/s）
- 7个12位DAC（15 Msamples/s）
- 7个超快速比较器（17纳秒）
- 6个具有可编程增益的运算放大器
- ART、CCM SRAM、以及数学运算加速器
- 双bank闪存
高分辨率定时器共由7个定时器组成：
- 12个PWM输出（可以成对耦合)
- 10个外部状态输入（电流限制、零电压/零电流检测等）和6个故障输入
高分辨率定时器的主要特性如下：
- 184 ps 分辨率（适用于所有操作模式）
- 可变占空比、可变频率和临界模式
- 许多可降低CPU负荷的特性
- 谷值跳过模式和斜坡补偿
- 每个定时器都有一路DMA通道
- 内置的突发模式控制器和特定拓扑的模式：推挽和谐振。
- 定时器之间的大量互连用于：
- 复位/启动相邻定时器
- 设定 / 复位 / 切换其他输出
- 易于编程实现的简单高分辨率执行流程（等同于4.6 GHz的定时器）
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The STM32G4 Series combines a 32-bit Arm® Cortex®-M4 core (with FPU and DSP instructions) running at 170 MHz combined with 3 different hardware accelerators: ART Accelerator™, CCM-SRAM routine booster and mathematical accelerators.
- STM32G474CB Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 128Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474QB Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 128Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474VE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474VC Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 256Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474VB Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 128Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G484QE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration, Crypto AES-256
- STM32G474ME Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G484VE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration, Crypto AES-256
- STM32G474RE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G484ME Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration, Crypto AES-256
- STM32G474RC Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 256Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474MC Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 256Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474MB Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 128Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G484RE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration, Crypto AES-256
- STM32G474RB Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 128Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G484CE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration, Crypto AES-256
- STM32G474CE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474QE Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 512Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474CC Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 256Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
- STM32G474QC Mainstream Arm Cortex-M4 core with DSP and FPU, 170MHz with 256Kbytes of Flash memory, Math Accelerator, HR Timer, High Analog level integration
