170 MHz Cortex-M4 with mixed-signal density for industrial control
The part integrates a 42-channel 12-bit ADC and a 7-channel 12-bit DAC, making it suited for mixed-signal control loops in motor drives, digital power conversion, and industrial sensor fusion.
Peripheral set and connectivity — what the 107 I/O and 42 ADC channels buy you
The 107 I/O count in the 128-LQFP footprint supports parallel interfaces for displays or multiple serial buses without external GPIO expanders. Connectivity includes CANbus, I²C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, and USB, covering industrial fieldbus and sensor networks. The 42 analog input channels let you monitor multiple current-sense resistors, thermistors, or encoder signals on a single chip — useful in multi-axis motor control where each phase needs its own ADC sample. The 7 DAC channels can generate analog setpoints or reference voltages for external analog circuits.
Supply range and power management
The 1.71 V floor is the practical minimum for battery-powered designs near end-of-discharge — a 2-cell alkaline stack or single Li-ion cell through a regulator stays within spec. On-chip brown-out detect and POR eliminate external supervisor ICs in many designs. The internal oscillator is available, though an external crystal is typical when USB or CAN timing accuracy is required.
Lifecycle status — active, no LTB risk
The base product number is STM32G473, and the STM32G4 series is an active STM32 family with roadmap continuity.