The STMicroelectronics STM32F373VCH7 is a 32-bit ARM Cortex-M4 MCU from the STM32F3 series, clocked at 72 MHz and built for mixed-signal control applications that need multiple high-resolution analog channels alongside digital processing. It carries 256 KB of Flash program memory and 32K x 8 of SRAM, with a peripheral set that includes DMA, I²S, POR, PWM, and a watchdog timer. Connectivity covers CANbus, I²C, IrDA, LINbus, SPI, UART/USART, and USB — enough bus options to tie into a distributed automation network without external bridge chips. The industrial temperature grade (-40°C to 105°C) suits motor-drive cabinets, outdoor telecom shelters, and factory-floor controllers where ambient heat and cold cycles are routine.
Mixed-signal converters — the differentiator
What sets this part apart from a plain STM32F3 MCU is the data-converter block: one 12-bit ADC, three 16-bit ADCs, and three 12-bit DACs. The three 16-bit ADCs allow simultaneous sampling on multiple analog inputs — useful for three-phase current sensing in a motor drive or multi-channel sensor acquisition where you want a single-cycle snapshot rather than sequential scans. The 12-bit DACs can generate analog setpoints or reference voltages without an external converter IC.
72 MHz Cortex-M4 — timing margin for control loops
The 72 MHz core speed, combined with the single-cycle multiply-and-accumulate DSP instructions of the Cortex-M4, gives enough headroom to run a PID loop, a sensor fusion filter, and a communication stack without pushing the CPU to its ceiling. For a field-oriented motor-control application, that margin translates to tighter current-loop update rates and less phase lag in the torque response.
Package and mounting
Supplied in a 100-ball UFBGA (7x7 mm) — surface-mount only. The fine-pitch BGA footprint requires a controlled reflow profile and X-ray inspection for voiding under the balls. Board layout should route the analog supply and reference pins with dedicated planes to keep the 16-bit ADC noise floor low.
Lifecycle and sourcing reality
The STM32F373VCH7 carries an end-of-life hot status, meaning the last-time-buy window is active. Procurement should treat this as a time-limited sourcing event: once the LTB closes, the part will only be available through surplus and broker channels. We source this MCU to order against an RFQ — availability and current pricing are confirmed at quote time. If the design can tolerate a package change, the wider STM32F373 family includes LQFP variants that may remain active longer; verify the specific order code before committing the BOM.