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Product Detailed Parameters
- Description：DUAL MARKED (5962-87623012A)
- Series：*
- Mfr：Rochester Electronics, LLC
- Package：Bulk
- Type：-
- Circuit：-
- Independent Circuits：-
- Current - Output High, Low：-
- Voltage Supply Source：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The Rochester Electronics LLC 54AC139/Q2A is a dual 2-to-4 line decoder/demultiplexer belonging to the high-speed CMOS 54AC series. Designed for aerospace and harsh environments, it features radiation hardness of 300 krad (Si) total ionizing dose and immunity to single event latch-up up to 110 MeV.cm²/mg. The device operates within a voltage range of 2 V to 6 V and supports temperatures from -55 °C to +125 °C. It is housed in hermetic packages and complies with SMD specifications.
Feature Summary
- Radiation hardened design suitable for aerospace applications
- Immunity to single event latch-up and upset
- Hermetic packaging for difficult environmental conditions
Applications
- Aerospace systems requiring radiation tolerance
- Harsh environment electronic circuits
- Military standard microcircuit implementations
Procurement Notes
Verify the specific suffix Q2A against official documentation to confirm exact package type and qualification level. Ensure compatibility with required radiation hardness standards for your application. Confirm hermetic sealing requirements are met by the specific batch. Check for any additional handling instructions associated with the hermetic package.
Selection Notes
Select this component when radiation hardness and wide temperature operation are critical. The 54AC series offers high-speed CMOS performance. Verify that the 2-to-4 decoder functionality matches system logic requirements. Consider the hermetic package for long-term reliability in space or military contexts.
Part Context
This part belongs to the 54ACxxxx series of high-speed CMOS functions. The series includes various gates, flip-flops, and multiplexers designed for aerospace use. These components are characterized by their radiation hardness and SEL immunity, making them distinct from commercial-grade logic devices.
Replacement Considerations
Check for equivalent parts in the 54AC series with similar radiation qualifications. Verify pinout compatibility if substituting with other manufacturers' rad-hard decoders. Ensure the replacement meets the same TID and SEL specifications.
