Espressif

Espressif Systems

 * https://www.espressif.com/en/

Timeline

 * 2008 - Espressif Systems founded.
 * Offers IoT / low power WiSoC's.

Wi-Fi chips

 * WiSoC

ESP32 Series

 * 32-bit MCU & 2.4GHz Wi-Fi & Bluetooth LE
 * One or two core CPU (@80MHz/240MHz)

ESP32-C3 Series

 * 32-bit RISC-V MCU & 2.4GHz Wi-Fi & Bluetooth 5 (LE)
 * Single-core CPU (up to @160MHz)


 * ESP8685 • Datasheet

ESP32-S2 Series

 * 32-bit MCU & 2.4GHz Wi-Fi
 * Single-core CPU (@240MHz)

ESP32-S3 Series

 * 32-bit MCU & 2.4GHz Wi-Fi & Bluetooth 5 (LE)
 * Xtensa 32-bit LX7 Dual-core CPU (up to @240MHz)

ESP8266 Series

 * 32-bit MCU & 2.4GHz Wi-Fi, Single-core CPU @160MHz


 * ESP8266 - 802.11bgn IoT WiSoC (2014) • Doc
 * Tensilica L106 32-bit RISC processor (@160MHz)
 * Interfaces: SDIO 1.1/2.0, SPI, UART (Spec.)
 * Datasheet • more info


 * ESP8266EX • Datasheet
 * ESP8285 • Datasheet

ESP8000 family

 * ESP8089 - 802.11bgn IoT WiSoC
 * Interfaces: SDIO/SPI/UART, 40nm

ESP6000 family

 * Lower power, based on ESP8000 family


 * ESP6203 - (2014)
 * AS5900 - weird 802.11 RFIC, 180nm
 * (translates WLAN signal to sub-1GHz for cable transmission)

Devices

 * Xenon SM-PW701U - Smart Plug Switch
 * CPU: Espressif ESP8266EX


 * MikroTik Woobm-USB - Wireless USB Stick
 * CPU: Espressif ESP8266EX - 802.11bgn IoT WiSoC


 * ODROID-GO - Portable Game Console
 * WiSoC: Espressif ESP32 Dual Core LX6 @240MHz