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Product Detailed Parameters
- Description：IC GATE AND/OR
- Series：*
- Mfr：Rochester Electronics, LLC
- Package：Bulk
- Logic Type：-
- Number of Circuits：-
- Number of Inputs：-
- Features：-
- Voltage - Supply：-
- 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：-
- Package / Case：-
- Grade：-
- Qualification：-
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Overview
The SN54L72J is a J-K flip-flop from the TTL/H/L series, manufactured by Rochester Electronics. It features negative edge triggering and provides complementary outputs. The device is housed in a CDIP14 ceramic DIP package with 14 pins. It supports master-slave operation and includes three J and three K inputs that are internally ANDed. The component is characterized for operation over the full military temperature range of -55°C to 125°C.
Feature Summary
- Negative edge triggered J-K flip-flop with complementary outputs
- Master-slave operation capability
- Three J and three K inputs are internally ANDed
Applications
- Military-grade digital logic circuits
- Space-level data storage applications
- High-reliability sequential logic systems
Procurement Notes
Verify the specific datasheet revision and test program used by Rochester Electronics, as components may be recreated from original IP or sourced from original suppliers. Confirm compliance with MIL-PRF-38535 Class Q or V requirements if applicable to your system. Ensure the CDIP14 ceramic package matches your board layout constraints. Check for RoHS non-compliance status due to the leaded nature of this legacy component.
Selection Notes
Select this component when military-grade reliability and wide temperature operation are required. The SN54L72J offers low power consumption characteristics typical of the L-series compared to standard TTL. Consider the CDIP14 package for hermetic sealing needs. Verify input compatibility with existing logic families in the design. Master-slave architecture is suitable for synchronous counting and state machine applications.
Part Context
Rochester Electronics specializes in sourcing and manufacturing obsolete and hard-to-find semiconductors. The SN54L72J is part of their portfolio of recreated or surplus components derived from original manufacturer intellectual property. These parts undergo rigorous testing to meet or exceed original data sheet specifications. The company holds ISO-9001 and AS9120 certifications and supplies to qualified manufacturers lists including DLA standards.
Replacement Considerations
Direct substitutes include other SN54L72 variants with compatible packages. Verify pinout compatibility before substitution. Cross-reference with SN54LS72 for similar functionality but different electrical characteristics. Ensure replacement parts meet the same military temperature range and package type requirements.
