The ST485A is a low power, high speed RS-485/RS-422 transceiver with a maximum supply current of 5mA and a data rate of up to 30Mbps.
The ST485AB is a very high speed, low power RS-485/RS-422 transceiver designed for bi-directional data communications and multipoint bus transmission lines. The device contains one driver and one receiver in a half-duplex configuration and operates from a single 5 V supply.
| Data rate | > 30 Mbps (Typ. 50 Mbps) |
|---|---|
| Supply voltage | 4.75 V to 5.25 V |
| Supply current | 5 mA max |
| Common mode input voltage range | -7 to 12 V |
| ESD protection | +4 kV |
| Input hysteresis | 70 mV typical |
| Operating temperature | -40 to 85°C |
The maximum data rate is 50 Mbps with jitter less than 5%.
The device operates from a single supply voltage between 4.75 V and 5.25 V.
Yes, the device features +4 kV ESD protection.