Key facts
- Brand
- STMicroelectronics
- Model
- ST485
- Category
- Other Electronics
- Documents
- 7
- Languages
- EN
- Last added
- 2012-08-08
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ST ST485EB ST485EC ST485EX handbook
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.
Read onlineSTMicroelectronics ST485 specifications
| 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 |
All STMicroelectronics ST485 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- ST ST485EB ST485EC ST485EX handbook 18 p
- STMicroelectronics ST485AB RS-485/RS-422 Transceiver Datasheet 19 p
- STMicroelectronics ST485ERB RS-485/RS-422 Transceiver Datasheet 19 p
- STMicroelectronics ST485B/ST485C Low Power RS-485/RS-422 Transceiver Datasheet 19 p
- STMicroelectronics ST485E RS-485/RS-422 Transceiver Datasheet 13 p
- STMicroelectronics ST485B/ST485C Datasheet 19 p
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the typical quiescent current?
The device draws 300 µA of supply current when unloaded or fully loaded with disabled drivers.
How many transceivers can be on the bus?
The design allows up to 256 transceivers to operate on the same bus.
What is the maximum data rate of the ST485AB?
The maximum data rate is 50 Mbps with jitter less than 5%.
From: STMicroelectronics ST485AB RS-485/RS-422 Transceiver Datasheet
What is the supply voltage range for the ST485AB?
The device operates from a single supply voltage between 4.75 V and 5.25 V.
From: STMicroelectronics ST485AB RS-485/RS-422 Transceiver Datasheet
What is the quiescent current of the ST485ERB?
The typical quiescent current is 300 µA when unloaded or fully loaded with disabled drivers.
From: STMicroelectronics ST485ERB RS-485/RS-422 Transceiver Datasheet
What supply voltage does the ST485ERB operate from?
It operates from a single 5 V supply.
From: STMicroelectronics ST485ERB RS-485/RS-422 Transceiver Datasheet