SNJ54AS20J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54AS20J is a military-grade dual 4-input positive-NAND gate IC from Texas Instruments' Advanced Schottky (AS) logic family. It features very fast propagation delays under 5 ns typical and operates across the -55°C to +125°C military temperature range. Packaged in a 14-pin ceramic DIP for high-reliability defense and space applications.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54AS20J Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual 4-input positive-NAND gate in fast Advanced Schottky (AS) logic family
- Very fast switching with typical propagation delay under 5 ns
- Military-grade temperature range of -55°C to +125°C
- 14-pin ceramic DIP package with hermetic sealing for long-term reliability
- High output drive with max IOL of 400 µA sink current
- TTL-compatible inputs ensuring seamless integration in mixed logic systems
Applications
The SNJ54AS20J is used in military radar signal processing, avionics data bus controllers, and space payload electronics where fast combinational logic with guaranteed operation at extreme temperatures is mandatory. It is also employed in high-reliability industrial automation equipment and test systems requiring MIL-grade logic components certified for extended service life.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | LG_MAX |
| Family | AS |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | NAND GATE |
| Max I(ol) | 0.0004A |
| Number of Functions | 2 |
| Number of Inputs | 4 |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 8.7mA |
| Prop. Delay@Nom-Sup | 5.5ns |
| Propagation Delay (tpd) | 5ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | TTL |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the propagation delay of the SNJ54AS20J?
The SNJ54AS20J belongs to the AS (Advanced Schottky) logic family, which provides very fast propagation delays typically under 5 ns at 25°C with a 5V supply, making it one of the faster TTL-compatible logic families suited for high-speed digital circuit applications.
What temperature range is the SNJ54AS20J rated for?
The SNJ54AS20J is rated for a military temperature range of -55°C to +125°C, allowing reliable operation in extreme environments including aerospace, defense avionics, and other demanding applications where commercial-grade components would be unsuitable.
What package does the SNJ54AS20J use?
The SNJ54AS20J is housed in a 14-pin GDIP (Glass Sealed Ceramic Dual-In-Line Package), providing a hermetic seal for maximum protection against moisture, vibration, and thermal cycling — characteristics essential for military-standard electronics longevity.
How many NAND gates are inside the SNJ54AS20J?
The SNJ54AS20J contains two independent 4-input positive-NAND gates in a single 14-pin package. Each gate accepts four TTL-compatible inputs and produces a NAND output, enabling compact implementation of high-fan-in Boolean logic functions in military-grade 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.
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