The datasheet indicates that for VOL of 0.4V, the Isink = 200uA. I have a 4.7k pull-up on the DOUT pin and a Vdd of 4.7V.
This implies I need to sink 1mA, which is not unreasonable. The datasheet has no chart of Vout vs Iout.
How much current can DOUT sink?
(Normally I would remove the pull-up, but it is on an existing module to which I must connect an external SPI Bus.)
Thanks for your help,