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Product Detailed Parameters
- Description：IC GATE NAND 4CH 2-INP 14SOIC
- Series：74AHC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Logic Type：NAND Gate
- Number of Circuits：4
- Number of Inputs：2
- Features：-
- Voltage - Supply：2V ~ 5.5V
- Current - Quiescent (Max)：2 µA
- Current - Output High, Low：8mA, 8mA
- Input Logic Level - Low：0.5V ~ 1.65V
- Input Logic Level - High：1.5V ~ 3.85V
- Max Propagation Delay @ V, Max CL：7.5ns @ 5V, 50pF
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Grade：-
- Qualification：-
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Overview
The SN74AHC00MDREP is a military-enhanced quad 2-input positive-NAND gate manufactured by Texas Instruments. It belongs to the AHC logic series and utilizes CMOS technology. The device operates within a supply voltage range of 2 V to 5.5 V. It features low-level output current of 8 mA and high-level output current of -8 mA. The propagation delay is specified at 5.2 ns. The component supports an extended operating temperature range from -55 °C to +125 °C. It is housed in a TSSOP-14 package designed for surface-mount installation.
Feature Summary
- Military-grade enhancement for reliable operation in extreme environments
- Quad configuration providing four independent 2-input NAND gates
- Wide supply voltage compatibility ranging from 2 V to 5.5 V
- Extended temperature tolerance suitable for harsh operational conditions
Applications
- Military avionics systems requiring enhanced reliability
- Defense communication equipment operating in extreme temperatures
- Spacecraft logic circuits demanding radiation-hardened performance
- Industrial control systems in severe environmental conditions
Procurement Notes
Verify the specific suffix 'REP' confirms the military enhancement status against official Texas Instruments documentation. Ensure the TSSOP-14 package matches the design footprint requirements. Confirm that the -55 °C to +125 °C temperature rating aligns with the target application's thermal constraints. Cross-reference the part number with authorized distributors to ensure authenticity and traceability for defense or aerospace projects.
Selection Notes
Select this component when standard commercial logic devices fail to meet the required temperature or reliability standards. The SN74AHC00MDREP offers superior performance over standard AHC variants in harsh environments. Consider the TSSOP-14 package size for space-constrained PCB layouts. Evaluate the 5.2 ns propagation delay against system timing requirements to ensure signal integrity is maintained under all operating conditions.
Part Context
This part is a specialized variant within the broader SN74AHC00 family, distinguished by its military qualification. While standard versions like SN74AHC00DR serve general electronics, the MDREP suffix indicates enhanced testing and material specifications. It shares logical functionality with other AHC NAND gates but provides higher robustness. This distinction makes it suitable for applications where failure is not an option.
Replacement Considerations
Direct substitutes include other military-qualified AHC NAND gates from Texas Instruments. Verify pinout compatibility before replacing standard commercial parts with this enhanced version. Ensure the replacement maintains the same TSSOP-14 package dimensions. Check if the application requires the specific military certification associated with the REP suffix.
