SNJ54H20J

Inverter Gates Overview

The SNJ54H20J is a dual four-input positive-NAND gate belonging to the TTL/H/L series. It is housed in a 14-pin ceramic dual in-line package (CDIP) with glass-sealed construction, designed for military-grade reliability. The device operates within an extended temperature range of -55°C to 125°C and requires a nominal supply voltage of 5V, supported by a range of 4.5V to 5.5V. Key electrical characteristics include a maximum propagation delay of 60 ns and a maximum power supply current of 1.02 mA.

Inverter Gates Feature Summary

• Dual four-input NAND logic functionality
• Military-grade ceramic packaging with glass seal
• Extended industrial and military temperature operation

Inverter Gates Applications

• Military avionics systems
• Spacecraft digital logic circuits
• High-reliability defense equipment

Inverter Gates Procurement Notes

Verify the specific suffix 'J' indicates the ceramic DIP package and military qualification level. Confirm compliance with relevant military specifications such as MIL-M-38510 or equivalent standards. Ensure the supplier provides traceability documentation for the glass-sealed ceramic construction required for harsh environment applications.

Inverter Gates Selection Notes

Select this component when high noise immunity and radiation hardness are required alongside standard TTL logic levels. The ceramic package offers superior hermeticity compared to plastic alternatives. Consider the 60 ns propagation delay for timing constraints in synchronous designs operating at the specified 5V supply.

Inverter Gates Part Context

This part is part of Texas Instruments' legacy SNJ54 series, which denotes military-grade performance. It complements other devices in the TTL/H/L family, providing robust logic inversion capabilities. The CDIP14 form factor ensures compatibility with traditional through-hole mounting techniques used in established aerospace and defense hardware architectures.