SNJ54F20J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54F20J is a dual 4-input NAND gate integrated circuit from Texas Instruments in a 14-pin ceramic DIP package. It features high-speed F/FAST logic with 50 pF load capacitance and 1 mA output low current, supporting industrial temperature ranges. Available worldwide with fast shipping from authorized distributors.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54F20J 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
- High-speed F/FAST logic family ensures reliable signal integrity in demanding digital systems
- 14-pin ceramic dual-in-line package (R-GDIP-T14) provides superior thermal performance and long-term reliability
- Dual 4-input NAND gate configuration enables flexible logic design with two independent gates in a single IC
- 50 pF load capacitance rating supports stable operation in high-frequency applications
Applications
The SNJ54F20J is well-suited for military, aerospace, and high-reliability industrial applications where ceramic packaging and extended temperature tolerance are critical. Its dual 4-input NAND gate architecture is ideal for complex combinational logic circuits, interrupt masking, bus arbitration, and signal conditioning in ruggedized embedded systems. The F/FAST logic family makes it compatible with high-speed digital designs requiring predictable propagation delays.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | F/FAST |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | NAND GATE |
| Max I(ol) | 0.001A |
| 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) | 5.1mA |
| Prop. Delay@Nom-Sup | 7ns |
| Propagation Delay (tpd) | 6.5ns |
| 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
Compatible alternatives and drop-in replacements for SNJ54F20J:
Frequently Asked Questions
What logic function does the SNJ54F20J implement?
The SNJ54F20J implements a dual 4-input NAND gate function. It contains two independent NAND gates, each accepting four inputs and producing a low output only when all four inputs are simultaneously high, making it ideal for combinational logic and control signal generation.
What package type does the SNJ54F20J use and why is it preferred for high-reliability applications?
The SNJ54F20J uses a 14-pin ceramic dual-in-line package (JESD-30 code R-GDIP-T14). Ceramic packaging offers superior thermal stability, moisture resistance, and mechanical durability compared to plastic packages, which is why it is preferred in military, aerospace, and industrial applications with harsh environmental conditions.
What is the load capacitance rating of the SNJ54F20J and how does it affect performance?
The SNJ54F20J is rated for a load capacitance (CL) of 50 pF. This parameter defines the maximum capacitive load the device can drive while maintaining its specified propagation delay and switching characteristics. Exceeding this value may slow switching times and affect signal integrity in high-speed designs.
Is the SNJ54F20J RoHS compliant and lead-free?
According to the JESD-609 code e0, the SNJ54F20J is not RoHS compliant and contains lead in its solder terminations. This is typical for military-grade ceramic DIP components. Designers targeting RoHS-compliant systems should verify compatibility or select an alternative lead-free variant.
What are common replacement or equivalent parts for the SNJ54F20J?
Common equivalents include the SN74F20 for commercial temperature range applications, as well as compatible parts from other manufacturers implementing the dual 4-input NAND gate function in the F/FAST logic family. Always verify pinout, voltage levels, and temperature ratings before substituting components in critical designs.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
Why Buy from FindMyChip
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”