At the top of the datasheet it shows that SN65HVD1792...
• Bus-Pin Fault Protection to:
– > ±70 V ('HVD1785, 86, 91, 92)
However later in the datasheet it shows under absolute maximums...
'HVD1785, 86, 91, 92, 93 A, B pins –70 70 V
Voltage at bus pins 'HVD1787 A, B pins –70 30 V
'HVD1793 Y, Z pins –70 30 V
Bus pins are A,B,Y, and Z. I expect that all four bus pins on the 1792 are 70V tolerant, but the datasheet does not make this clear. It's a full duplex chip, so it would be expected that Y, and Z would be used as well, but it only shows under absolute maximums that A and B are 70V tolerant. I would like to use this device but it would only work if Y and Z are fault tolerant as well. Every other competitor chip I have found lists A,B,Y, and Z as fault tolerant on their fault tolerant chip datasheets.
