Check the listing for details. ST Micro STM32F072C8U6TR Arm Cortex-M0 USB MCU 64 K Flash, 48 MHz CPU. Condition: New. Listed at 5.00 USD. We purchased these for a customer project and ended up not needing as many as we though. These are still packaged in reels of 2500, ready to ship. Ebay AI suggested the following description: This powerful ST Micro STM32F072C8U6TR Arm Cortex-M0 USB MCU is the perfect solution for your electronic needs. With 64 K Flash, a 48 MHz CPU, and an interface type of USB, this integrated circuit is sure to impress. The 48 pins are the perfect number to give you the flexibility to use this chip in a variety of different projects. Whether you're working on a personal project or a large-scale business endeavor, this chip is sure to exceed your expectations. With a minimum operating temperature of 0 °C (32 °F), it is sure to withstand even the most extreme temperatures. Purchase today to experience the power and versatility of this ST Micro STM32F072C8U6TR MCU.