Espressif Announces the 
Release of ESP32-S2 Secure Wi-Fi MCU

Espressif Announces the 
Release of ESP32-S2 Secure Wi-Fi MCU

Espressif announces the release of the 
ESP32-S2 Secure Wi-Fi MCU, which is a highly integrated, low-power, 2.4 GHz Wi-Fi Microcontroller SoC supporting Wi-Fi HT40 and 43 GPIOs. Based on Xtensa® single-core 32-bit LX7 processor, ESP32-S2 can be clocked at up to 240 MHz.

ESP32-S2 is a highly integrated, low-power, 2.4 GHz Wi-Fi Microcontroller SoC supporting Wi-Fi HT40 and 43 GPIOs. Based on Xtensa® single-core 32-bit LX7 processor, it can be clocked at up to 240 MHz.

With state-of-the-art power management and RF performance, IO capabilities and security features, ESP32-S2 is an ideal choice for a wide variety of IoT or connectivity-based applications, including smart home and wearables. With an integrated 240 MHz Xtensa® core, ESP32-S2 is sufficient for building the most demanding connected devices without requiring external MCUs.

By leveraging Espressif’s mature and production-ready software development framework (ESP-IDF), ESP32-S2 achieves a balance of performance and cost, thus bringing faster and more secure IoT connectivity solutions to the market.

Features

CPU and Memory

  • Xtensa® single-core 32-bit LX7 microcontroller
  • 7-stage pipeline
  • Clock frequency of up to 240 MHz
  • Ultra-low-power co-processor
  • 320 kB SRAM, 128 kB ROM, 16 KB RTC memory
  • External SPIRAM (128 MB total) support
  • Up to 1 GB of external flash support
  • Separate instruction and data cache

Connectivity

  • Wi-Fi 802.11 b/g/n
  • 1×1 transmit and receive
  • HT40 support with data rate up to 150 Mbps
  • Support for TCP/IP networking, ESP-MESH networking, TLS 1.0, 1.1 and 1.2 and other networking protocols over Wi-Fi
  • Support Time-of-Flight (TOF) measurements with normal Wi-Fi packets

IO Peripherals

  • 43 programmable GPIOs
  • 14 capacitive touch sensing IOs
  • Standard peripherals including SPI, I2C, I2S, UART, ADC/DAC and PWM
  • LCD (8-bit parallel RGB/8080/6800) interface and also support for 16/24-bit parallel
  • Camera interface supports 8 or 16-bit DVP image sensor, with clock frequency of up to 40 MHz
  • Full speed USB OTG support

Security

  • RSA-3072-based trusted application boot
  • AES256-XTS-based flash encryption to protect sensitive data at rest
  • 4096-bit eFUSE memory with 2048 bits available for application
  • Digital signature peripheral for secure storage of private keys and generation of RSA signatures

Engineering Samples of ESP32-S2 beta will be available in June.

For more information, please contact Espressif Business Team.

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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