SNJ54AHC14J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
Texas Instruments SNJ54AHC14J is a hex Schmitt-trigger inverter from the AHC logic family with 6 independent channels, 50 pF load capacitance, and 50 mA output current in a 14-pin ceramic DIP package rated for military temperature range. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54AHC14J 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
- Hex Schmitt-trigger inverter with 6 independent channels and hysteresis on each input for robust noise-immune signal conditioning in high-reliability applications
- AHC-family logic with 50 mA output sink current and 50 pF load capacitance at 2 V to 5.5 V supply, combining high-speed performance with low power consumption
- 14-pin ceramic DIP (GDIP) package qualified for military temperature range of -55°C to +125°C, suitable for defense, aerospace, and harsh-environment industrial systems
Applications
The SNJ54AHC14J is deployed in military and aerospace electronics where hex Schmitt-trigger inverters must operate reliably across the full -55°C to +125°C temperature range with ceramic packaging for moisture resistance. Its 6-channel Schmitt inverter configuration handles clock signal buffering, oscillator feedback, and noisy digital input conditioning in ruggedized avionics and radar processing cards. The AHC logic family's low-power high-speed characteristics also suit satellite payload electronics and shipboard control systems requiring MIL-spec component qualification.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | AHC/VHC/H/U/V |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.05A |
| Number of Functions | 6 |
| Number of Inputs | 1 |
| 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) | 0.02mA |
| Prop. Delay@Nom-Sup | 18.5ns |
| Propagation Delay (tpd) | 18.5ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | YES |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| 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 temperature range does the SNJ54AHC14J support and why is the ceramic package important for military use?
The SNJ54AHC14J operates across the military temperature range of -55°C to +125°C. The 14-pin ceramic DIP (GDIP) package provides hermetic sealing against moisture and contaminants, which is mandatory for MIL-spec components in avionics, shipboard electronics, and ground defense equipment where commercial plastic packages would fail under thermal cycling and humidity exposure.
How many Schmitt-trigger inverter channels does the SNJ54AHC14J provide and what is the output drive capability?
The SNJ54AHC14J contains 6 independent single-input Schmitt-trigger inverter channels. Each output can sink up to 50 mA and drive loads up to 50 pF capacitance. The Schmitt hysteresis on each input prevents chatter from slow or noisy logic transitions, making the device suitable for clock signal restoration and debouncing in military and aerospace digital systems.
How does the SNJ54AHC14J differ from commercial-grade 74AHC14 parts in terms of qualification and application scope?
The SNJ54AHC14J is the military-qualified version of the AHC14 hex Schmitt inverter, rated from -55°C to +125°C with a ceramic hermetic GDIP-14 package, compared to the commercial 74AHC14 rated only from 0°C to +70°C in a plastic package. The SNJ prefix and ceramic packaging indicate compliance with MIL-PRF-38535 or equivalent defense procurement standards, required for safety-critical avionics and weapons-system electronics at 2 V to 5.5 V supply.
Can the SNJ54AHC14J be used as an oscillator feedback element in a crystal oscillator circuit?
Yes, one channel of the SNJ54AHC14J can serve as the inverting amplifier in a Pierce crystal oscillator by placing a series resistor of 1 Mohm between input and output and connecting the crystal and load capacitors of approximately 18 pF to 33 pF at each pin. The Schmitt hysteresis aids startup and the AHC-family supply range of 2 V to 5.5 V accommodates standard oscillator operating conditions across the -55°C to +125°C military temperature range.
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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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