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Product Detailed Parameters
- Description：IC GATE NOR 4CH 2-INP DIE
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Logic Type：NOR Gate
- Number of Circuits：4
- Number of Inputs：2
- Features：-
- Voltage - Supply：1.5V ~ 5.5V
- Current - Quiescent (Max)：-
- Current - Output High, Low：-
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：Die
- Package / Case：Die
- Grade：-
- Qualification：-
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Overview
The SN54AC02VTD1 is a quadruple 2-input positive-NOR gate die manufactured by Texas Instruments. Designed for space-grade applications, it offers radiation tolerance and operates within a supply voltage range of 1.5 V to 5.5 V. The component features four independent NOR circuits with two inputs each. It supports an operating temperature range from -55°C to 125°C and exhibits a maximum quiescent current of 1 µA. The device is supplied as a bare die.
Feature Summary
- Radiation-tolerant design suitable for space-grade environments
- Quadruple 2-input positive-NOR logic configuration
- Wide supply voltage operation from 1.5 V to 5.5 V
Applications
- Spacecraft digital logic systems
- Radiation-hardened electronic circuits
- Military aerospace control units
Procurement Notes
Verify the specific revision level and radiation hardness qualification data directly with Texas Instruments or authorized distributors before procurement. Ensure that the bare die form factor aligns with your substrate assembly capabilities and thermal management requirements. Confirm that the operating temperature range meets the environmental constraints of the final deployment scenario.
Selection Notes
Select this component when radiation tolerance is critical for the application environment. The bare die package requires specialized mounting techniques compared to standard packaged ICs. Ensure the system power supply remains stable within the 1.5 V to 5.5 V range to maintain signal integrity and logical functionality across the specified temperature extremes.
Part Context
This part belongs to the SN54AC series of high-speed CMOS logic devices. The 'SN54' prefix indicates military/extended temperature grade performance, while 'AC' denotes advanced CMOS technology. The 'VTD1' suffix specifies the bare die variant intended for custom packaging or hybrid circuit integration rather than standard PCB surface mount applications.
Replacement Considerations
Direct replacements must match the radiation tolerance and bare die format. Consider SN54AC02 variants in different packages if assembly methods change, though functional equivalence alone does not guarantee space-grade suitability. Verify pinout compatibility if integrating into existing layouts designed for packaged equivalents.
