ST485EB is a low power RS-485/RS-422 transceiver from ST, which features low quiescent current, -7V~12V input voltage range, 30ns propagation delay, 5ns skew, 5V single power supply, support 256 transceivers parallel communication
The ST485EB, ST485EC, and ST485EX are low power transceivers designed for RS-485 and RS-422 communication applications. Each device contains one driver and one receiver in a half-duplex configuration, allowing up to 256 transceivers on the bus.
| Supply voltage | 5 V |
|---|---|
| Quiescent current (typical) | 300 µA |
| ESD protection (HBM) | +15 kV |
| Common mode input voltage range | -7 V to 12 V |
| Maximum data rate | 5 Mbps |
The device draws 300 µA of supply current when unloaded or fully loaded with disabled drivers.
The design allows up to 256 transceivers to operate on the same bus.