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SN65HVD21

The Texas Instruments SN65HVD21 is an Extended Common-Mode RS-485 Transceiver designed for robust data transmission. It offers a signaling rate of up to 5 Mbps and supports a wide common-mode voltage range.

✓ Total Stock: 9,040 pcs

$ Price Range: $2.20

SN65HVD21 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	9,040 pcs On Request	9040 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

SN65HVD21 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments

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SN65HVD21 Description

Short technical summary and product information.

The SN65HVD21 from Texas Instruments is an active Extended Common-Mode RS-485 Transceiver. It is designed for bidirectional data transmission on multipoint twisted-pair cables, making it suitable for applications where the environment is harsh for ordinary transceivers.

Key electrical specifications include a maximum signaling rate of 5 Mbps, fault protection from -27V to 27V, and an extended common-mode voltage range of -20V to 25V. This transceiver supports up to 256 nodes on the bus and features over 16-kV HBM ESD protection. It operates within an industrial temperature range of -40°C to 85°C.

This device family meets all requirements of the TIA/EIA-485-A standard. Features such as high ESD protection, wide receiver hysteresis, and failsafe operation enhance its reliability. The SN65HVD21 is available in SOIC and PDIP packages, with a surface mount option for the SOIC package.

Example applications include digital motor controllers, remote sensors and terminals, industrial process control, security stations, and environmental control systems. Its robust design makes it ideal for long-cable networks and demanding industrial environments.

SN65HVD21 Quick Information

Product Type: RS-485 Transceiver

Canonical Name: SN65HVD21 Extended Common-Mode RS-485 Transceiver

Subcategory: Interface

SN65HVD21 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

SN65HVD21 Estimated Pricing

Qty	Low	High
1+	$2.20	$2.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN65HVD21 Features

Extended common-mode voltage range.
Supports up to 256 nodes on bus.
High ESD protection to 16 kV HBM.
Operates from -40°C to 85°C.
Failsafe receiver for bus conditions.

SN65HVD21 Applications

Ideal for long-cable networks.
Suitable for harsh environments.
Used in industrial process control.
Supports digital motor controllers.
Applicable for remote sensors.

SN65HVD21 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the maximum signaling rate of the SN65HVD21?

The maximum signaling rate is 5 Mbps.

What is the operating temperature range?

The operating temperature range is -40 °C to 85 °C.

How many nodes can be supported on the bus?

Up to 256 nodes.

What fault protection does the device offer?

Fault protection from -27 V to 27 V.

What is the supply current?

The maximum supply current is 12 mA.

What ESD protection is provided on the bus pins?

The bus I/O pins are protected to over 16 kV HBM.

What packages are available?

The SN65HVD21 is available in SOIC and PDIP packages.