DM74LS73AN

Overview

The DM74LS73AN is a dual JK-type flip-flop integrated circuit manufactured by onsemi. It features two independent J-K flip-flops with clear inputs, housed in a 14-pin Dual In-Line Package (DIP). The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a maximum propagation delay of 30 ns at 5 V. It is designed for commercial temperature ranges from 0°C to +70°C and draws a maximum supply current of 8 mA.

Feature Summary

• Contains two independent J-K flip-flops with complementary outputs
• Features active-low clear inputs for immediate state reset
• Supports standard TTL logic levels for compatibility

Applications

• Digital counting circuits
• Shift register construction
• Frequency division networks

Procurement Notes

Verify the specific manufacturer marking and date code against official onsemi documentation to ensure authenticity. Confirm that the component meets the required LS logic family specifications and package dimensions. Check for any obsolescence notices or lifecycle status updates directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a dual JK flip-flop with clear functionality is required in a through-hole DIP package. Ensure the design accommodates the 30 ns propagation delay and 8 mA supply current limits. Verify that the operating environment stays within the specified commercial temperature range and voltage tolerances.

Part Context

This part belongs to the 74LS series of bipolar logic devices, known for low power consumption compared to standard TTL. The DM prefix typically indicates a specific manufacturing line or variant within the onsemi portfolio. It serves as a fundamental building block for sequential logic designs requiring bistable memory elements.

Replacement Considerations

Direct substitutes include other manufacturers' 74LS73 equivalents such as SN74LS73. Verify pinout compatibility and electrical parameters like propagation delay and supply current before substitution.