Tools

MCU Selector

Hard filters narrow the field; priority weights rank what survives. Every elimination is explained, and the chart marks the Pareto-optimal parts. State lives in the URL — share any view.

66 parts · updated 2026-06-10 · seed data is estimated, not yet verified.

Start from an archetype

Hard filters

RadioMin flashMax sleepMin clockArchEcosystem

Max priceany

USBCANincl. early-rampincl. low-stockincl. legacy

Priority weights — these rank, they don't filter

cost5

power5

speed5

memory5

64 of 66 parts match

STNordicEspressifRaspberry PiOtherPareto-optimalbubble size ∝ flash

Matching parts by price and clock
Part	Vendor	Price USD	Clock MHz	Flash KB	Pareto optimal
ESP32-C3	Espressif	0.8	160	4096	yes
nRF54L10	Nordic	2.2	128	1022	yes
nRF54L15	Nordic	3	128	1524	yes
ESP32-S3	Espressif	1.9	240	8192	yes
ESP32-S2	Espressif	1.2	240	4096	yes
nRF54L05	Nordic	1.5	128	500	yes
STM32U575ZI	ST	5.8	160	2048	yes
ESP32-C2	Espressif	0.5	120	2048	yes
ESP32-C5	Espressif	1.6	240	4096	yes
ESP32-C6	Espressif	1.1	160	4096	yes
ESP32-D0WD-V3	Espressif	1.8	240	4096	yes
STM32H743ZI	ST	8.9	480	2048	yes
RA8M1	Other	9.8	480	2048	yes
STM32H750VB	ST	4.5	480	128	yes
RP2350B	RaspberryPi	0.9	150	4096	yes
STM32H563ZI	ST	5.9	250	2048	yes
EFR32MG24	Other	3.5	78	1536	yes
ESP32-H2	Espressif	0.9	96	2048	no
RP2350A	RaspberryPi	0.8	150	2048	no
RA6M5	Other	7.5	200	2048	yes
STM32G474RE	ST	4.2	170	512	yes
ESP32-P4	Espressif	2.5	400	0	yes
MCXN947	Other	4.9	150	2048	yes
nRF5340	Nordic	4.8	128	1024	no
EFR32BG22	Other	1.8	77	512	no
STM32G0B1RE	ST	2.2	64	512	no
STM32L476RG	ST	5.5	80	1024	no
nRF52832	Nordic	2.5	64	512	no
STM32U083RC	ST	1.3	56	256	yes
nRF52840	Nordic	3.9	64	1024	no
STM32L432KC	ST	2.8	80	256	no
nRF52810	Nordic	1.6	64	192	no
STM32G071RB	ST	1.1	64	128	yes
nRF52833	Nordic	3.2	64	512	no
STM32H503RB	ST	1.9	250	128	yes
STM32WB55RG	ST	4.5	64	1024	no
STM32G031K8	ST	0.7	64	64	yes
LPC55S69	Other	5.2	150	640	no
STM32F407VG	ST	6.5	168	1024	yes
STM32C011F6	ST	0.3	48	32	yes
MSPM0G3507	Other	0.9	80	128	yes
CY8C6244	Other	6.5	150	2048	no
MSPM0L1306	Other	0.4	32	64	yes
STM32F411CE	ST	3.2	100	512	no
STM32C031C6	ST	0.45	48	32	yes
MCXA153	Other	1.1	96	128	yes
RP2040	RaspberryPi	0.7	133	2048	yes
CH32V203	Other	0.45	144	64	yes
CH32V307	Other	1.2	144	256	no
CC2652R7	Other	4.1	48	704	no
STM32WLE5JC	ST	3.8	48	256	no
i.MX RT1062	Other	9.5	600	4096	yes
SAMD51J19	Other	3.8	120	512	no
RA4M1	Other	2.4	48	256	no
MSPM0C1104	Other	0.16	24	16	yes
STM32F103C8	ST	1.8	72	64	no
CY8C4125	Other	1.5	48	128	no
GD32VF103	Other	1.5	108	128	no
CH32V003	Other	0.15	48	16	yes
SAMD21G18	Other	2.3	48	256	no
AVR64DD32	Other	1.2	24	64	no
ATtiny1616	Other	0.8	20	16	no
ATmega328PB	Other	1.6	20	32	no
MSP430FR2433	Other	1.3	16	16	no

Top matches by score

Detail

Click any part — in the chart or the list — to inspect specs, score breakdown, and (for eliminated parts) why it was cut.