Part Details for DS485TM/NOPB by National Semiconductor Corporation
Results Overview of DS485TM/NOPB by National Semiconductor Corporation
- Distributor Offerings: (2 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
DS485TM/NOPB Information
DS485TM/NOPB 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 DS485TM/NOPB
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 14 |
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RFQ | ||
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Quest Components | LINE TRANSCEIVER, PDSO8 | 11 |
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$3.1020 / $4.2300 | Buy Now |
Part Details for DS485TM/NOPB
DS485TM/NOPB CAD Models
DS485TM/NOPB Part Data Attributes
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DS485TM/NOPB
National Semiconductor Corporation
Buy Now
Datasheet
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Compare Parts:
DS485TM/NOPB
National Semiconductor Corporation
IC LINE TRANSCEIVER, PDSO8, PLASTIC, SOP-8, Line Driver or Receiver
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| Rohs Code | Yes | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | NATIONAL SEMICONDUCTOR CORP | |
| Package Description | PLASTIC, SOP-8 | |
| Reach Compliance Code | 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 | e3 | |
| Length | 4.9 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| 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) | 260 | |
| 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 | INDUSTRIAL | |
| Terminal Finish | Matte Tin (Sn) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 40 | |
| Transmit Delay-Max | 65 ns | |
| Width | 3.9 mm |
Alternate Parts for DS485TM/NOPB
This table gives cross-reference parts and alternative options found for DS485TM/NOPB. 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 DS485TM/NOPB, 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 | DS485TM/NOPB vs DS485TMX/NOPB |
| DS485TMX | Texas Instruments | Check for Price | Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC -40 to 85 | DS485TM/NOPB vs DS485TMX |
| DS485TM/NOPB | Texas Instruments | Check for Price | Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC -40 to 85 | DS485TM/NOPB vs DS485TM/NOPB |
| DS485MX/NOPB | National Semiconductor Corporation | Check for Price | IC LINE TRANSCEIVER, PDSO8, SOIC-8, Line Driver or Receiver | DS485TM/NOPB vs DS485MX/NOPB |
| DS485M | Texas Instruments | Check for Price | Low-Power RS-485/RS-422 Multipoint Transceiver 8-SOIC 0 to 70 | DS485TM/NOPB vs DS485M |
| DS485MX | Texas Instruments | Check for Price | LINE TRANSCEIVER, PDSO8, PLASTIC, SOP-8 | DS485TM/NOPB vs DS485MX |
DS485TM/NOPB Frequently Asked Questions (FAQ)
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The maximum cable length for reliable data transmission depends on the baud rate, cable quality, and noise environment. As a general guideline, the DS485TM/NOPB can support cable lengths up to 4000 feet (1219 meters) at lower baud rates (e.g., 9600 bps) and shorter lengths (e.g., 1000 feet or 305 meters) at higher baud rates (e.g., 115200 bps).
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To ensure reliable data transmission in noisy environments, use twisted-pair cables, keep the cable length as short as possible, and use shielding to reduce electromagnetic interference (EMI). Additionally, consider using error-checking protocols, such as CRC or checksum, to detect and correct errors.
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Yes, the DS485TM/NOPB can be used in a multi-master configuration, but it requires careful design and implementation to avoid bus conflicts and ensure reliable data transmission. Each master device should have its own unique address, and a collision detection and resolution mechanism should be implemented to handle bus contention.
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The maximum number of devices that can be connected to the bus depends on the bus loading and the total capacitance of the bus. As a general guideline, the DS485TM/NOPB can support up to 32 devices on the bus, but this number may be limited by the specific application and bus loading.
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To troubleshoot communication issues with the DS485TM/NOPB, use a logic analyzer or oscilloscope to monitor the bus signals, check the cable connections and quality, verify the device addresses and configurations, and ensure that the baud rates and data formats are correctly set. Additionally, consult the datasheet and application notes for troubleshooting guidelines and tips.