SNJ55LBC172J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
SNJ55LBC172J is a quadruple low-power RS-485 differential line driver IC in a 16-pin ceramic DIP package, rated for -55°C to 125°C military temperature range. It integrates 4 independent drivers with differential outputs compliant with EIA-485 for multi-drop bus transmission. Designed for military, aerospace, and rugged industrial serial communication systems requiring extended temperature operation.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SNJ55LBC172J Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $38.0100(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SNJ55LBC172J?
- 4 independent RS-485 EIA-485 differential drivers
- -55°C to 125°C military temperature rating
- 16-pin ceramic DIP hermetic package
- Low-power CMOS driver outputs
- High-impedance output under power-off condition
- Standard TTL/CMOS compatible inputs
What is SNJ55LBC172J used for?
The SNJ55LBC172J is used in military and aerospace RS-485 data bus systems where the -55°C to 125°C temperature range and ceramic hermetic packaging provide long-term reliability in harsh environments. It drives differential RS-485 signals over long cable runs in avionics, ground vehicle electronics, and shipboard communication networks. The device is also found in rugged industrial instrumentation and test equipment requiring qualified military-grade components for MIL-STD applications.
What are the specifications of SNJ55LBC172J?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Differential Output | YES |
| Driver Number of Bits | 4 |
| High Level Input Current-Max | 0.0001A |
| Input Characteristics | STANDARD |
| Interface IC Type | LINE DRIVER |
| Interface Standard | EIA-485 |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Number of Functions | 4 |
| Out Swing-Min | 1.1V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.0001A |
| Output Polarity | TRUE |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Current-Max | 7mA |
| Supply Voltage-Max | 5.25V |
| Supply Voltage-Min | 4.75V |
| Supply Voltage-Nom | 5V |
| Supply Voltage1-Max | 5.25V |
| Supply Voltage1-Min | 4.75V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | NO |
| Technology | BICMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Transmit Delay-Max | 40ns |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the SNJ55LBC172J datasheet?
SNJ55LBC172J Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SNJ55LBC172J?
Compatible alternatives and drop-in replacements for SNJ55LBC172J:
Frequently Asked Questions
What temperature range does the SNJ55LBC172J support, and why is ceramic packaging used?
The SNJ55LBC172J is rated for a -55°C to 125°C temperature range and uses a ceramic DIP package for hermetic sealing against moisture and contaminants. This combination is required in military and aerospace applications where long-term reliability under thermal cycling and high-humidity environments is specified by MIL-STD-883 or similar qualification standards.
How many RS-485 differential driver channels does the SNJ55LBC172J integrate?
The SNJ55LBC172J integrates 4 independent RS-485 differential line driver channels in a single 16-pin ceramic DIP package. Each driver produces an EIA-485 compliant differential output voltage of at least 1.5 V across a 54-ohm load, enabling reliable data transmission over multi-drop bus cables in military and rugged industrial serial networks.
Is the SNJ55LBC172J suitable for avionics or MIL-grade serial bus designs?
Yes, the SNJ55LBC172J is specifically designed for military and aerospace RS-485 serial bus applications, offering a -55°C to 125°C temperature range in a hermetic 16-pin ceramic DIP package. Its 4-channel differential driver configuration allows efficient use of IC count in multi-channel avionics data link boards where space and weight constraints favor integrated quad-driver solutions.
Can the SNJ55LBC172J drive RS-485 buses at high data rates over long cable distances?
The SNJ55LBC172J supports RS-485 transmission at data rates appropriate for bus lengths up to 1200 m at lower speeds, or higher data rates of several Mbps over shorter cable runs of 10 to 100 m. Each of its 4 differential output drivers provides the minimum 1.5 V differential swing required by EIA-485 across the standard 54-ohm termination resistance used in multi-drop network designs.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $38.0100 | $38.01 |
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