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Product Detailed Parameters
- Description：IC GATE NAND 4CH 2-INP 14CDIP
- Series：54S
- Mfr：National Semiconductor
- Package：Bulk
- Logic Type：NAND Gate
- Number of Circuits：4
- Number of Inputs：2
- Features：-
- Voltage - Supply：4.5V ~ 5.5V
- Current - Quiescent (Max)：40 mA
- Current - Output High, Low：-
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Through Hole
- Supplier Device Package：14-CDIP
- Package / Case：14-CDIP (0.300", 7.62mm)
- Grade：-
- Qualification：-
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Overview
The 54H00DM is a military-grade TTL integrated circuit manufactured by National Semiconductor. It contains four independent 2-input NAND gates in a 14-pin ceramic dual in-line package (CDIP). The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range from -55°C to 125°C. Maximum quiescent current is specified at 40 mA. The component utilizes through-hole mounting with tin/lead terminal plating and a standard 2.54 mm pin pitch.
Feature Summary
- Contains four independent 2-input NAND logic gates
- Military-grade temperature rating for extreme environments
- Hermetic ceramic dual in-line packaging
Applications
- Military avionics logic circuits
- Spacecraft digital systems
- Harsh environment industrial control
Procurement Notes
Verify the manufacturer marking matches National Semiconductor or Texas Instruments, as TI acquired NS logic lines. Confirm the ceramic package material and military temperature grade (-55°C to 125°C) are present. Ensure the part number suffix 'DM' corresponds to the specific 14-CDIP variant. Check for RoHS compliance status if required, noting this is a legacy military part.
Selection Notes
Select this component when military reliability and wide temperature operation are mandatory. The ceramic package provides superior hermeticity compared to plastic variants. Ensure the design accommodates the 40 mA maximum quiescent current. Verify that the 14-pin CDIP footprint fits the PCB layout constraints.
Part Context
This part belongs to the 54-series high-speed TTL logic family. The 'H' denotes high-speed performance characteristics typical of the era. The 'DM' suffix indicates a military-specification ceramic DIP package. It serves as a fundamental building block for complex digital logic designs requiring robust environmental tolerance.
Replacement Considerations
Direct replacements include other 54H00 variants in compatible packages. Verify pinout compatibility before substitution. Military-grade equivalents from other manufacturers may require qualification testing. Plastic package versions (e.g., 54H00N) offer lower cost but lack hermeticity.
