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MAX3440EASA+ Datasheet(PDF) 11 Page - Maxim Integrated Products |
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MAX3440EASA+ Datasheet(HTML) 11 Page - Maxim Integrated Products |
11 / 19 page X = Don’t care. X = Don’t care. X = Don’t care. X = Don’t care. X = Don’t care. Note 1: Receiver output may oscillate with this differential input condition. Table 5. MAX3440E/MAX3441E (RS-485/RS-422) Table 4. MAX3444E (J1708) Application Table 3. MAX3442E/MAX3443E (RS-485/RS-422) Table 2. MAX3440E/MAX3441E (RS-485/RS-422) Table 1. MAX3440E/MAX3441E Fault Table RECEIVING INPUTS OUTPUTS DE/RE (A - B) RO 0 ≥-0.05V 1 0 ≤-0.2V 0 0 Open/shorted 1 1 X High-Z TRANSMITTING INPUTS OUTPUTS CONDITIONS TXD DE A B — 0 1 High-Z High-Z — 1 1 High-Z High-Z — 0 0 0 1 Dominant state 1 0 High-Z High-Z Recessive state TRANSMITTING INPUTS OUTPUTS RE DE DI A B 0 0 X High-Z High-Z 0 1 0 0 1 0 1 1 1 0 1 0 X Shutdown Shutdown 1 1 0 0 1 1 1 1 1 0 TRANSMITTING INPUTS OUTPUTS DE/RE DI A B 0 X High-Z High-Z 1 0 0 1 1 1 1 0 INPUTS OUTPUTS FAULT CONDITION A-B VID DIFFERENTIAL INPUT VOLTAGE COMMON-MODE VOLTAGE RO FAULT CONDITIONED BY DELAY ≥0.45V ≤12V and ≥-7V 1 0 Normal operation <0.45V and ≥0.27V 1 Indeterminate Indeterminate <0.27V and ≥-0.05V 1 1 Low-input differential voltage ≤-0.05V and ≥-0.2V Indeterminate (Note 1) 1 Low-input differential voltage ≤-0.2V and >-0.27V 0 1 Low-input differential voltage ≤-0.27V and >-0.45V 0 Indeterminate Indeterminate ≤-0.45V 0 0 X <-7V or >+12V Indeterminate 1 Outside common-mode voltage range www.maximintegrated.com Maxim Integrated │ 11 MAX3440E–MAX3444E ±15kV ESD-Protected, ±60V Fault-Protected, 10Mbps, Fail-Safe RS-485/J1708 Transceivers Function Tables |
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