ESP32-C3FH4AZ

[vm__dm]

I see this part number mentioned in the latest ESP32-C3 datasheet, but I couldn't find any description of the differences between this variant and those already available. I see from DS that SPI-flash pins are labeled as NC. From PN I suppose that flash size is 4MB, but I would like to know if there are other differences. I am mostly interested in anything that could reduce power consumption

[ESP_wangning]

Hi there,

Your assumptions are correct. The difference between ESP32-C3FH4AZ and other variants is that SPI pins for flash connection are not bonded, so this chip variant has 6 fewer GPIOs available. These SPI pins are internally connected to a 4 MB flash in the chip package. Such information is covered in Chapter 1 ESP32-C3 Series Comparison.

I'm afraid that there is no major difference in power consumption.