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ST485 Datasheet(PDF) 4 Page - STMicroelectronics |
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ST485 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 19 page ![]() Truth tables ST485 4/19 2 Truth tables Note: X = Don’t care; Z = High impedance Note: X = Don’t care; Z = High impedance Table 2. Truth table (driver) Inputs Outputs RE DE DI B A XH H L H XH L H L XLX Z Z Table 3. Truth table (receiver) Inputs Outputs RE DE A-B RO LL ≥ +0.2V H LL ≤ -0.2V L L L INPUTS OPEN H HL X Z |