DS8921MX/NOPB The Texas Instruments DS8921MX/NOPB is a differential line driver and receiver pair designed for RS422 and RS485 applications. It offers a 10 Mbps signaling rate and operates within a 4.5V to 5.5V supply range.
Mfr Part #:

DS8921MX/NOPB

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments DS8921MX/NOPB is a differential line driver and receiver pair designed for RS422 and RS485 applications. It offers a 10 Mbps signaling rate and operates within a 4.5V to 5.5V supply range.
Total Stock: 50,379 pcs
$ Price Range: $1.32

DS8921MX/NOPB Available from 4 distributors

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40,178 pcs
40178 pcs On Request 1 On Request On Request On Request On Request On Request
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2000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
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15 pcs
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DS8921MX/NOPB Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Duplex
Fault Protection
Lead Spacing
Mounting Type
Number of Drivers
Operating Temperature
Propagation Delay
Protocol
Receiver Hysteresis
Supplier Device Package
Supply Current
Type
Voltage

DS8921MX/NOPB Description

Short technical summary and product information.

The DS8921MX/NOPB from Texas Instruments is a differential line driver and receiver pair, specifically engineered for applications adhering to ST506, ST412, and ESDI disk drive standards, as well as meeting EIA RS-422 requirements. This transceiver operates at a maximum signaling rate of 10 Mbps and supports both RS422 and RS485 protocols.

 

Key electrical characteristics include a typical propagation delay of 12 ns and an output skew of 0.5 ns. The receiver sensitivity is ±0.2 V over a ±7 V common-mode range, with incorporated hysteresis of 70 mV typical to enhance noise margin. The device operates from a supply voltage of 4.5V to 5.5V.

 

Designed for surface mount, the DS8921MX/NOPB comes in an 8-SOIC package. Its operating temperature range is 0°C to 70°C. This component is suitable for applications requiring robust differential signaling and compatibility with TTL and CMOS logic levels.

DS8921MX/NOPB Quick Information

Product Type: Transceiver
Canonical Name: DS8921MX/NOPB Differential Line Driver and Receiver Pair
Subcategory: RS-485 & RS-422 Transceivers

DS8921MX/NOPB Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS8921MX/NOPB Estimated Pricing

Qty Low High
1+ $1.32 $1.32

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

DS8921MX/NOPB Features

  • Differential line driver and receiver pair
  • Supports RS422 and RS485 protocols
  • 10 Mbps maximum signaling rate
  • 12 ns typical propagation delay
  • ±7 V common-mode input voltage range

DS8921MX/NOPB Applications

  • Designed for ST506 disk drive standard
  • Meets EIA RS-422 requirements
  • Suitable for differential signaling applications
  • Compatible with TTL and CMOS logic

DS8921MX/NOPB FAQs

7 frequently asked questions generated from this part’s specifications.
What is the typical propagation delay for the DS8921MX/NOPB?

The typical propagation delay for the DS8921MX/NOPB is 12 ns.

What operating voltage range does the DS8921MX/NOPB support?

The DS8921MX/NOPB supports an operating voltage range of 4.5V to 5.5V.

What is the operating temperature range for this transceiver?

The operating temperature range for the DS8921MX/NOPB is 0°C to 70°C.

What package type is the DS8921MX/NOPB available in?

The DS8921MX/NOPB is available in an 8-SOIC package.

What protocols does the DS8921MX/NOPB support?

The DS8921MX/NOPB supports RS422 and RS485 protocols.

What is the receiver sensitivity of the DS8921MX/NOPB?

The receiver sensitivity is ±0.2 V over the input voltage range.

What is the typical receiver input hysteresis?

The typical receiver input hysteresis is 70 mV.

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