My objective was to find an STM32 with the following features:

• SDIO
• USB
• CAN
• 48 or 64 pins

And standard features such as SPI and UART.

Here are some STM32s which fit these capabilities and are available on JLCPCB, along with some other honorable mentions.

PN	Passes?	Cost [USD]	Flash [kb]	Package Size	SDIO	USB	CAN	Notes
STM32L431RCT6	❌	1.274	256	LQFP-64	✅	❌	✅	Very low price for its capabilities, shame it is missing USB.
STM32F401RCT6	❌	1.325	256	LQFP-64	✅	✅	❌	Again, an abnormally good value chip, but it is missing CAN.
STM32F402RCT6	❌	1.325	256	LQFP-64	✅	✅	❌	It’s datasheet is in Chinese and ST doesn’t advertise it or sell it elsewhere.
STM32F103RCT6	✅	1.501	256	LQFP-64	✅	✅	✅	The cheapest matching the criteria.
STM32F302C8T6	❌	1.638	64	LQFP-48	❌	✅	✅	Used on Neptunium 1. This is the cheapest chip with USB, CAN and DSP instructions.
STM32G431CBU6	❌	1.881	128	UFQFPN-48	❌	✅	✅	Very capable processor with FDCAN, USB PD and higher frequency.
STM32F407VET6	✅	2.452	512	LQFP-100	✅	✅	✅	Very capable processor the cheapest one with all three interfaces but its package is too large for my application. The processor has many other interfaces (camera, Ethernet) and high frequency.
STM32F412RET6	✅	2.658	512	LQFP-64	✅	✅	✅	Very capable processor, the cheapest one matching the criteria AND has DSP instructions. Has two CAN interfaces.
STM32F407ZET6	✅	2.704	512	LQFP-144	✅	✅	✅	Huge package
STM32L476RET6	✅	2.713	512	LQFP-64	✅	✅	✅	The cheapest matching the criteria in the L4 lineup.
ESP32-S3FH4R2	✅	2.67	4096	QFN-56	✅	✅	✅	Yes, but it’s power hungry and does not have enough I/O for my application.

Feel free to comment below your favorite MCUs on JLCPCB, I’m interested in hearing about it (especially if you have one that does BLE, CAN, SDIO, USB and has more IO than an ESP32-S3 and less power consumption).