SN54LS112AJ

Flip Flops Overview

The SN54LS112AJ is a dual J-K flip-flop belonging to the SN54/74LS112A series, manufactured by onsemi. It utilizes Low Power Schottky (LS) TTL technology and features negative edge triggering for data transfer. The device contains two independent bistable circuits, each equipped with individual J, K, clock, asynchronous set, and clear inputs. Outputs are provided in complementary form. The component is housed in a ceramic flatpack package with 16 pins, designed for military-grade reliability and extended temperature range operation typical of the SN54 series.

Flip Flops Feature Summary

• Dual independent J-K flip-flops with complementary outputs
• Negative edge-triggered data transfer mechanism
• Individual asynchronous set and clear inputs per flip-flop
• Low Power Schottky (LS) logic family construction

Flip Flops Applications

• High-reliability digital storage applications
• Military aerospace control systems
• Parallel-to-serial data conversion circuits
• Frequency division and counting networks

Flip Flops Procurement Notes

Verify the manufacturer marking matches onsemi or authorized legacy sources, as this part originates from historical Motorola production lines. Confirm the 'A' suffix indicates the specific variant and 'J' denotes the ceramic flatpack package. Ensure compliance with RoHS directives if required, as LS TTL components may contain lead. Request datasheet revision history to confirm pinout consistency with standard SN54/74LS112A specifications before integration.

Flip Flops Selection Notes

Select this component when military-grade environmental tolerance and high-speed switching performance are required simultaneously. The LS technology offers a balance between power consumption and speed suitable for complex digital logic. Choose the ceramic package for superior thermal stability and hermetic sealing compared to plastic variants. Consider compatibility with existing TTL logic families in legacy system upgrades or replacements where SN54 series reliability is mandated.

Flip Flops Part Context

This device is part of the broader SN54/74LS112A family of dual J-K flip-flops. It shares functional characteristics with other LS series logic components but is distinguished by its military-grade packaging and temperature rating. The SN54 series typically supports wider operating temperatures than the commercial SN74 series, making it suitable for harsh environments.

Flip Flops Replacement Considerations

Direct substitutes include SN54LS112AK or SN54LS112AW depending on package preference. Cross-reference with SN74LS112N for commercial grade equivalents if environmental constraints allow. Verify pin compatibility and electrical parameters against current inventory parts to ensure seamless integration without circuit modification.