Part Details for DS485M by National Semiconductor Corporation
Results Overview of DS485M by National Semiconductor Corporation
- Distributor Offerings: (4 listings)
- Number of FFF Equivalents: (6 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Industrial Automation
Renewable Energy
Telecommunications
Communication and Networking
Robotics and Drones
DS485M Information
DS485M by National Semiconductor Corporation is a Line Driver or Receiver.
Line Driver or Receivers are under the broader part category of Drivers And Interfaces.
A driver controls the current or voltage delivered to components like LCDs or motors, while an interface component connects systems for data transfer and control. Read more about Drivers And Interfaces on our Drivers And Interfaces part category page.
Price & Stock for DS485M
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 22 |
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RFQ | ||
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Bristol Electronics | 4 |
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RFQ | ||
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ComSIT USA | Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDSO8 ECCN: EAR99 RoHS: Not Compliant |
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RFQ | |
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Vyrian | Interface ICs | 1285 |
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RFQ |
Part Details for DS485M
DS485M CAD Models
DS485M Part Data Attributes
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DS485M
National Semiconductor Corporation
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Datasheet
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DS485M
National Semiconductor Corporation
IC LINE TRANSCEIVER, PDSO8, PLASTIC, SOP-8, Line Driver or Receiver
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| Rohs Code | No | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | NATIONAL SEMICONDUCTOR CORP | |
| Package Description | PLASTIC, SOP-8 | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Differential Output | YES | |
| Driver Number of Bits | 1 | |
| High Level Input Current-Max | 0.000002 A | |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER | |
| Interface IC Type | LINE TRANSCEIVER | |
| Interface Standard | EIA-422; EIA-485; TIA-485 | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e0 | |
| Length | 4.9 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Out Swing-Min | 1.5 V | |
| Output Low Current-Max | 0.004 A | |
| Output Polarity | COMPLEMENTARY | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 235 | |
| Qualification Status | Not Qualified | |
| Receive Delay-Max | 320 ns | |
| Receiver Number of Bits | 1 | |
| Seated Height-Max | 1.75 mm | |
| Supply Current-Max | 0.9 mA | |
| Supply Voltage-Nom | 5 V | |
| Surface Mount | YES | |
| Technology | CMOS | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Transmit Delay-Max | 65 ns | |
| Width | 3.9 mm |
Alternate Parts for DS485M
This table gives cross-reference parts and alternative options found for DS485M. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of DS485M, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| DS485TMX/NOPB | Texas Instruments | Check for Price | Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC -40 to 85 | DS485M vs DS485TMX/NOPB |
| DS485TMX | Texas Instruments | Check for Price | Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC -40 to 85 | DS485M vs DS485TMX |
| DS485TM/NOPB | Texas Instruments | Check for Price | Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC -40 to 85 | DS485M vs DS485TM/NOPB |
| DS485MX/NOPB | National Semiconductor Corporation | Check for Price | IC LINE TRANSCEIVER, PDSO8, SOIC-8, Line Driver or Receiver | DS485M vs DS485MX/NOPB |
| DS485M | Texas Instruments | Check for Price | Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC 0 to 70 | DS485M vs DS485M |
| DS485MX | National Semiconductor Corporation | Check for Price | IC LINE TRANSCEIVER, PDSO8, PLASTIC, SOP-8, Line Driver or Receiver | DS485M vs DS485MX |
DS485M Frequently Asked Questions (FAQ)
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The maximum cable length for the DS485M is dependent on the baud rate and the type of cable used. As a general rule, the maximum cable length is 4000 feet (1219 meters) at 9600 bps, 2000 feet (610 meters) at 19,200 bps, and 1000 feet (305 meters) at 38,400 bps.
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The bus should be terminated with a 120-ohm resistor at each end of the network to prevent signal reflections and ensure reliable data transmission.
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Yes, the DS485M can be used in a multi-master configuration, but it requires additional circuitry to handle the arbitration and collision detection. The datasheet provides guidelines for implementing a multi-master configuration.
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The minimum number of devices required to implement a DS485M network is two, one acting as the master and the other as the slave.
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The DS485M is designed to be compatible with other RS-485 transceivers that meet the EIA/TIA-485 standard. However, compatibility should be verified before mixing transceivers from different manufacturers.