RP2040 vs STM32 vs ESP32 vs ESP8266

Link	Raspberry Pi RP2040	Espressif ESP32	Espressif ESP32-S2	STM32 F1 series	STM32 G4 series	STM32F103C8T6	Espressif ESP8266	Teensy 4.1
Kurzer Name	RP2040	ESP32	ESP32-S2	STM32 F1	STM32 G4	STM32F103C8T6	ESP8266	Teensy 4.1
Webseite	raspberrypi.org/...	espressif.com/...	espressif.com/...	www.st.com/...	www.st.com/...	www.st.com/...	espressif.com/...	pjrc.com/...
Veröffentlichungsdatum	2021-01-21	2016	2019	2007	2019	2007 Jun 01	2014	2020 May 11
Product details
CPU	Arm Cortex-M0+ Dual-core @133MHz	Tensilica Xtensa LX6 32 bit Dual-Core @ 160 / 240Mhz	Tensilica Xtensa LX7 32 bit Single-Core @ 240Mhz	ARM Cortex-M3 @ 24 / 36 / 48 / 72 MHz	ARM Cortex-M4F @ 170 MHz FPU, DSP instructions	32-bit ARM Cortex M3 72MHz max	Tensilica LX106 32 bit @ 80 MHz (up to 160 MHz)	NXP IMXRT1062DVJ6A ARM Cortex-M7 at 600 MHz with FPU (32 bit float and 64 bit double precision), DSP instructions.
Coprocessor		ULP	ULP (RISC-V)
RAM	264 KB	520 KB	320 KB	4 KB - 96 KB	32 KB - 128 KB	20 kb	50 KB less than	1.024 KB RAM (512K tightly coupled)
ROM (Flash)		448 KB	128 KB	16 KB - 1024 KB	128 KB - 512 KB	64 Kb or 128 Kb	0 use external SPI flash	7.936 KB Flash
UART	2	3	2			3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control	2	8 UARTS
SPI	Ja 2 (OSPI)	Ja 4	Ja 4 (OSPI)			Ja 2	Ja 2	Ja 2
Wi-Fi	Nein	Ja 802.11b/g/n	Ja 802.11b/g/n			Nein	Ja 802.11b/g/n (max 65Mbps)	Nein
Bluetooth®	Nein	Ja 4.2 BR/EDR + BLE	Nein			Nein	Nein	Nein
USB Host	Ja	Nein	Ja			Nein	Nein	Ja 2 usb ports (1 as USB host, 5 pin header with power management)
Ethernet (LAN, RJ45)	Nein	Ja 10/100Mbps	Nein			Nein	Nein	Ja Ethernet 10/100 Mbit (6 pin on board header). Teensy 4.1 contains an Ethernet controller and Ethernet PHY chip.
RTC Memory		16 KB	16 KB			No		16 bytes of memory are located within the RTC. If a coin cell is connected to VBAT, contents of this memory is preserved while power is off. This memory is accessed as 32 bit registers LPGPR0-LPGPR3.
External SRAM		8 MB up to	128 MB up to					16 MB up to PSRAM (QSPI Memory Expansion, ready to solder 1 or 2 chips such as IPS6404LSQ or ESP PSRAM64H on board)
External Flash		16 MB up to	1 GB up to				16 MB up to	8 MB up to (QSPI Memory Expansion, board ready to solder additional 8MB Flash chip such as 25Q128JVSQ)
ESP-MESH	Nein	Ja	Ja			Nein	Ja	Nein
CAN		Ja v2.0				Ja	Nein	Ja 3
GPIO	30	34	43			80 (up to)	17 (up to)	55 input/output signal pins (42 are accessible when used with a solderless breadboard)
Hall-Sensor	Nein	Ja	Nein			Nein	Nein	Nein
Capteur de température	Nein	Ja	Ja			Ja	Nein	Ja A built in temperature sensor allows reading the temperature inside the MCU chip
Touch sensors		10	14			No	No	No
I²C	Ja	Ja up to 2	Ja up to 2			Ja up to 2	Ja up to 1	Ja 3
I2S	1	2	1			1	2	2 (I2S/TDM)
ADC	Ja x4 12-bit	Ja 12 bit SAR ADC up to 18 channels	Ja 12 bit SAR ADC up to 20 channels			Ja 2 x 12-bit, 1 μs A/D converters (up to 16 channels)	Ja 10 bit	Ja 18 pins total (12 bit, 2 Converters, 4 comparators)
DAC	Nein	Ja 8 bit up to 2 channels	Ja 8 bit up to 2 channels			Ja	Nein	Nein
PWM	Ja up to 16	Ja up to 8	Ja 8			Ja 37	Ja 4	Ja 31 pins/outputs (3x PWM 32 bit, 32x PWM 16 bit)
SDMMC	Nein	Ja	Nein			Nein	Nein	Ja 1 SDIO (4 bit) native Micro SD Card
RMT (remote control)	Nein	Ja	Ja			Nein	Nein	Nein
LCD Interface	Nein	Nein	Ja			Nein	Nein	Nein not dedicated
Camera Interface	Nein	Nein	Ja			Nein	Nein	Nein not dedicated
Deep sleep consumption	18 µA (Dormant) 39 µA (Sleep)	10 µA, Yes	5 µA			1 Yes	20 µA, Yes
Sicherheit
Secure flash		1024-bit OTP secure boot	4096-bit OTP secure boot
Cryptography support		AES, SHA-2, RSA, ECC, RNG	AES-128/192/256, SHA-2, RSA, RNG, HMAC, Digital Signature					Symmetric ciphers and one-way hash can be computed by hardware, but currently no library support exists to utilize this hardware.
Abmessungen
Höhe	7 mm	6 mm	7 mm				5 mm	0.16 in (4.07 mm) (no extra PSRAM or Flash included)
Breite	7 mm	6 mm	7 mm				5 mm	0.7 in (17.81 mm)
Gewicht

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