# CH641

RISC-V2A, 48MHz, 16KB Flash, 2KB SRAM.

USB-PD/Type-C, BC1.2, HV DCP.
ISP/ISN, QII.

> **Note**
> CH641 is a riscv32ec core, which is not supported by ofiicial Rust yet.
> ch32-rs team maintains a fork of Rust at <https://github.com/ch32-rs/rust>.
> You can check [Noxim's Blog](https://noxim.xyz/blog/rust-ch32v003/introduction/) for riscv32ec support.

## Chips

```
* CH641F-0x641005x0
* CH641D-0x641105x0
* CH641U-0x641505x0
* CH641P-0x641605x0
```