ESP8266 vs ESP32 vs ESP32-S2 vs ESP32-C3

Products > High-Tech
2021-03-21 18:54:34

Compare Espressif SoCs ESP8266 vs ESP8285 vs ESP32 vs ESP32-S2 vs ESP32-C3

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DescriptionESP32-C3 is pin-compatible with ESP8266. It has a single core RISC-V 32-bit CPU @160 MHz and includes 400 kB of SRAM and 384 kB of flash built-in.The ESP8285 is similar to the ESP8266, but has built-in 1 MiB of flash.
Release date20202019201620162014
Product details
CPURISC-V 32-bit Single-Core @ 160 MHzTensilica Xtensa LX7
32 bit Single-Core @ 240Mhz
Tensilica Xtensa LX6
32 bit Dual-Core @ 160 / 240Mhz
Tensilica LX106
32 bit @ 80 MHz (up to 160 MHz)
Tensilica LX106
32 bit @ 80 MHz (up to 160 MHz)
CoprocessorULP (RISC-V)ULP
RAM400 KB320 KB520 KB160 KB160 KB (36 KB available to user)
ROM (Flash)384 KB128 KB448 KB1024 KB
SPIYes 3Yes 4 (OSPI)Yes 4Yes 2Yes 2
Wi-FiYes 802.11b/g/nYes 802.11b/g/nYes 802.11b/g/nYes 802.11b/g/n (max 65Mbps)Yes 802.11b/g/n (max 65Mbps)
Bluetooth®Yes 5.0 + BLENoYes 4.2 BR/EDR + BLENoNo
USB HostNoYesNoNoNo
Ethernet (LAN, RJ45)NoNoYes 10/100MbpsNoNo
RTC Memory8 KB16 KB16 KB
External SPIRAM128 MB up to16 MB up to16 MB up to16 MB up to
External Flash1 GB up to
CANYes v2.0
GPIO22 (up to)4332 (up to)17 (up to)17 (up to)
Hall effect sensorNoNoYesNoNo
Temperature sensorYesYesYesNoNo
Touch sensors1410NoNo
I²CYes up to 1Yes up to 2Yes up to 2Yes up to 1Yes up to 1
ADCYes 2 × 12-bit SAR ADCs, up to 6 channelsYes 12 bit SAR ADC up to 20 channelsYes 12 bit SAR ADC up to 18 channelsYes 10 bitYes 10 bit
DACYes 8 bit up to 2 channelsYes 8 bit up to 2 channelsNoNo
PWMYes up to 6Yes 8Yes up to 8NoNo
RMT (remote control)YesYesNoNo
LCD InterfaceNoYesNoNoNo
Camera InterfaceNoYesNoNoNo
Secure flash4096-bit OTP4096-bit OTP secure boot1024-bit OTP secure boot
Cryptography supportAES-128/256, RSA Accelerator, SHA Accelerator, Random Number Generator (RNG), HMACAES-128/192/256, SHA-2, RSA, RNG, HMAC, Digital SignatureAES, SHA-2, RSA, ECC, RNG
Deep sleep consumption5 µA10 µA20 µA20 µA
Height5 mm7 mm6 mm5 mm5 mm
Width5 mm7 mm6 mm5 mm5 mm


  • voted for this Comparison (Like)
    goog job
    Posted 2021-09-18 00:05:46 by mvwtest001
  • voted for this Comparison (Like)
    Posted 2020-09-20 11:09:29 by Alexis

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