- CH340E – TSSOP-10 (Notice pitch is 0.5mm), only need two external parts for USB to UART communication, no need crystal, ultra small size, tested stable speed (150000 for flashing esp8266)
- (Retired) CH340G – SOP-16, price-competitive USB-TTL ICs, same high speed.
- Each purchase is for 5pcs.
- CH340C – SOP-16, fully replace CH340G, but no more need external 12Mhz crystal, for your current design, it is pin to pin replaceable, for your future design, no need crystal anymore.
Documentation please see on this page.