ESPs vs STM32s
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Short name | RP2040 | ESP32 | ESP32-S2 | ESP32-C3 | STM32 F1 | STM32 G4 | STM32F103C8T6 |
|---|---|---|---|---|---|---|---|
| Website | raspberrypi.org/... | espressif.com/... | espressif.com/... | espressif.com/... | www.st.com/... | www.st.com/... | www.st.com/... |
| Release date | Jan. 21st 2021 | 2016 | 2019 | 2020 | 2007 | 2019 | 2007 Jun 01 |
| 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 | RISC-V 32-bit Single-Core @ 160 MHz | ARM Cortex-M3 @ 24 / 36 / 48 / 72 MHz | ARM Cortex-M4F @ 170 MHz FPU, DSP instructions | 32-bit ARM Cortex M3 72MHz max |
| Coprocessor | ULP | ULP (RISC-V) | |||||
| RAM | 264 KB | 520 KB | 320 KB | 400 KB | 4 KB - 96 KB | 32 KB - 128 KB | 20 kb |
| ROM (Flash) | 448 KB | 128 KB | 384 KB | 16 KB - 1024 KB | 128 KB - 512 KB | 64 Kb or 128 Kb | |
| UART | 2 | 3 | 2 | 2 | 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control | ||
| SPI | Yes 2 (OSPI) | Yes 4 | Yes 4 (OSPI) | Yes 3 | Yes 2 | ||
| Wi-Fi | No | Yes 802.11b/g/n | Yes 802.11b/g/n | Yes 802.11b/g/n | No | ||
| Bluetooth® | No | Yes 4.2 BR/EDR + BLE | No | Yes 5.0 + BLE | No | ||
| USB Host | Yes | No | Yes | No | No | ||
| Ethernet (LAN, RJ45) | No | Yes 10/100Mbps | No | No | No | ||
| RTC Memory | 16 KB | 16 KB | 8 KB | No | |||
| External SRAM | 8 MB up to | 128 MB up to | |||||
| External Flash | 16 MB up to | 1 GB up to | |||||
| ESP-MESH | No | Yes | Yes | Yes | No | ||
| CAN | Yes v2.0 | Yes | |||||
| GPIO | 30 | 34 | 43 | 22 (up to) | 80 (up to) | ||
| Hall effect sensor | No | Yes | No | No | No | ||
| Temperature sensor | No | Yes | Yes | Yes | Yes | ||
| Touch sensors | 10 | 14 | No | ||||
| I²C | Yes | Yes up to 2 | Yes up to 2 | Yes up to 1 | Yes up to 2 | ||
| I2S | 1 | 2 | 1 | 1 | 1 | ||
| ADC | Yes x4 12-bit | Yes 12 bit SAR ADC up to 18 channels | Yes 12 bit SAR ADC up to 20 channels | Yes 2 × 12-bit SAR ADCs, up to 6 channels | Yes 2 x 12-bit, 1 μs A/D converters (up to 16 channels) | ||
| DAC | No | Yes 8 bit up to 2 channels | Yes 8 bit up to 2 channels | Yes | |||
| PWM | Yes up to 16 | Yes up to 8 | Yes 8 | Yes up to 6 | Yes 37 | ||
| SDMMC | No | Yes | No | No | |||
| RMT (remote control) | No | Yes | Yes | No | |||
| LCD Interface | No | No | Yes | No | No | ||
| Camera Interface | No | No | Yes | No | No | ||
| Deep sleep consumption | 18 µA (Dormant) 39 µA (Sleep) | 10 µA, Yes | 5 µA | 1 Yes | |||
| Security | |||||||
| Secure flash | 1024-bit OTP secure boot | 4096-bit OTP secure boot | 4096-bit OTP | ||||
| Cryptography support | AES, SHA-2, RSA, ECC, RNG | AES-128/192/256, SHA-2, RSA, RNG, HMAC, Digital Signature | AES-128/256, RSA Accelerator, SHA Accelerator, Random Number Generator (RNG), HMAC | ||||
| Dimensions | |||||||
| Height | 7 mm | 6 mm | 7 mm | 5 mm | |||
| Width | 7 mm | 6 mm | 7 mm | 5 mm |
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