4 ms·
The CH32V003 is a nice RISC-V chip at a great price, and deservedly popular, but there is in fact an Arm chip in the same space, the Cortex-M0+ Puya PY32F002A,
by brucehoult 1y ago
The CH32V003 is a nice RISC-V chip at a great price, and deservedly popular, but there is in fact an Arm chip in the same space, the Cortex-M0+ Puya PY32F002A, which has the same MHz but a little more RAM (3k) and flash (20k).
Being Chinese there has been some suggestion that they haven't actually paid for the CM0 core, but it's supported in Keil and I think listed somewhere on the main Arm site too, which tends to rule that out.
(WCH has already introduced successors to the CH32V003 with more RAM and flash at the same $0.10 price -- and even the CH570D with 96 MHz, 12k RAM, 240k flash, USB, and a 2.4 GHz packet radio -- but they are not as widely available yet)