Pin 8 is NC for CH340-->C<-- variant
https://www.mouser.com/datasheet/2/813/DS-16278-CH340E-1826268.pdf
Pin 8 is NC; not ~{OUT}
for the "C" variant
Also, R232 has a builtin pulldown
https://www.mouser.com/datasheet/2/813/DS-16278-CH340E-1826268.pdf
Pin 8 is NC; not ~{OUT}
for the "C" variant
Also, R232 has a builtin pulldown