WCH CH32V407 and CH32V467 are new 200 MHz RISC-V microcontrollers with a built-in 10/100 Mbps Ethernet MAC + PHY, a USB 2.0 high-speed (480 Mbps) host PHY, up to 8 MB on-chip PSRAM, and a range of peripherals for industrial IoT & edge AI applications. Both are based on the company’s Qingke V3V core with RVV vector extensions, delivering 4.11 CoreMark/MHz, a score higher than a typical Arm Cortex-M4 core. The main difference between the CH32V407 and CH32V467 is that the latter comes with 4 MB or 8 MB PSRAM, making it more suitable for display/HMI applications. WCH CH32V407/467 specifications: MCU Core – QingKe V3V 32-bit RISC-V (IMACV-X, X = custom) core @ up to 200 MHz RVV-vector instruction set and parallel computing Memory and storage 200KB SRAM 4MB or 8MB PSRAM memory (CH32V467 only) 512KB Flash SDIO Interface (MMC, SD/SDIO Cards, and CE-ATA) Optional Flexible Static Memory Controller (FSMC) [...]

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