My customer asks if ADM2587 includes internal pull-up or pull down resistor of at TxD pin and DE pin ?
My customer asks above question because of no describing truth table at Open state on datasheet Rev.E P.14 Table 12.
I think that there is 500K ohm pull up or pull down because input current of DE and TxD specify Max=10uA .
(DE = pull down ? TxD = pill up ?)
If possible, could you give me advice if above my understanding is correct ?