ESP8266EX-I — Espressif
Tensilica L106 MCU, WiFi, 80MHz, 160KB RAM, QFN32, industrial range -40..+85C

Category: MCU

Pricing
  LCSC         $1.06
  Mouser       $1.29
  DigiKey      $1.38
  Farnell      $1.42

Manufacturer: https://www.espressif.com