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STM32L431 series microcontrollers

2 STM32L431 variants on the wiki: Arm Cortex-M4, compared by flash, RAM, I/O and package.

Same core (Arm Cortex-M4) and peripheral set across the family; pick by memory and pin count.

Part page	Clock	Flash	RAM	I/O	Package	ST status
STM32L431RCT6	80 MHz	256 kB	64 kB	52	LQFP 64	Active
STM32L431RCT6TR	80 MHz	256 kB	64 kB	52	LQFP 64	Active

Provenance

Parametrics from STMicroelectronics' own product-selector grid (category CL1734), pulled weekly into component-ocean (definitions/st/stm32-mcu-portfolio.json) and resolved per part by scripts/st/mcu-cli.py. Membership is recomputed from the published pages.