ST490ABDR RS-422 RS-423 RS-485 by STMicroelectronics

Low power high speed RS-485/RS-422 transceiver

Status: Active
Series: ST490AB
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The ST490A is a low power transceiver for RS485 and RS-422 communications. The device contains one driver and one receiver in full duplex configuration. The ST490A draws 5mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5V supply. Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that place the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic high output if both inputs are open circuit.

Where to Buy

Prices starting from US$0.83

Distributor Stock
Logo for Future Electronics NA
Future Electronics
from US$0.87
25,000
in stock
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Logo for TME
TME
from US$0.85
4,291
in stock
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Logo for RS UK
RS
from US$0.97
2,265
in stock
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Logo for Newark
Newark Electronics
from US$1.10
0
in stock
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Logo for Avnet America
Avnet America
from US$0.83
0
in stock
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Logo for RS Americas
RS Americas
from US$1.82
0
in stock
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Logo for element14 Singapore
element14
from US$1.10
0
in stock
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Logo for Farnell UK
Farnell
from US$1.09
0
in stock
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Logo for EBV Elektronik
EBV Elektronik
-
0
in stock
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Logo for Avnet Silica
Avnet Silica
-
0
in stock
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Features

Current limiting and thermal shutdown for driver overload protection
±4 kV ESD protection
Low supply current: 5mA max
70mV typical input hysteresis
-7V to 12V common mode input voltage range
Operate from a single 5 V supply
Designed for 25Mbps operation

Last 6 months Inventory & Pricing History


Alternative Descriptions

ST490AB Series 50 Mbps ±4 kV Low Power High Speed RS-485/RS-422 Transceiver | Future Electronics
IC: interface | TME
STMicroelectronics ST490ABDR | RS
Transceiver, Rs232, 50Mbps, Soic-8 | Newark Electronics
ST490ABDR, LINE TRANSCEIVER, RS-422, RS-485, 5 V, 8-PIN SOIC | RS Americas
RS422/RS485 TRANSCEIVER, 50MBPS, SOIC-8 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ST490ABDR?

Additional datasheets, footprints and schematics for ST490ABDR are listed on our Part Details page. You can also find images and similar parts to ST490ABDR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for ST490ABDR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view ST490ABDR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does ST490ABDR fall under?

The ST490ABDR is listed under Interfaces and Transceivers > RS-422 RS-423 RS-485.

Can I view similar or alternative parts?

You can view similar parts to ST490ABDR when available in the RS-422 RS-423 RS-485 range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the ST490ABDR you can contact the distributor directly for product support, shipping queries etc.

Is the ST490ABDR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for ST490ABDR have stock available?

Authorised distributors including Future Electronics, TME, RS, Newark Electronics and Avnet America have stock available or on a lead time for ST490ABDR.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for ST490ABDR often in real-time on the comparison pages.

What if I can't find stock of ST490ABDR?

You can fill out our help required form which you can use to request a quote for ST490ABDR from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.