CH32V307VCT6-I — WCH RISC-V RV32IMAC MCU, 144MHz, 256KB flash, 64KB SRAM, LQFP100, industrial range -40..+85C Category: MCU Pricing LCSC $1.64 Mouser $2.10 DigiKey $2.25 Farnell $2.46 Manufacturer: https://www.wch.cn