DM74ALS564AN

Overview

The DM74ALS564AN is an octal D-type flip-flop with 3-state outputs manufactured by onsemi. It operates within a supply voltage range of 4.5V to 5.5V and features a propagation delay of 14ns at 5V with 50pF load. The device provides high-level output current of 2.6mA and low-level output current of 24mA, with a static current of 18mA. It is housed in a 20-pin DIP package and functions within a temperature range of 0°C to 70°C.

Feature Summary

• Octal D-type flip-flop configuration with positive edge triggering
• Three-state outputs for bus-oriented memory operations
• Non-inverting data path from inputs to outputs

Applications

• Bus-oriented memory systems
• Register files
• Shift registers

Procurement Notes

Verify component authenticity as the DM74ALS564AN may be obsolete or discontinued. Confirm package integrity and pin alignment upon receipt. Cross-reference datasheet specifications against supplier documentation to ensure compliance with original design parameters before integration into production circuits.

Selection Notes

Select this component for designs requiring octal storage with tri-state control in through-hole applications. Ensure the system supports TTL logic levels and 5V operation. Verify that the 20-pin DIP footprint matches the PCB layout constraints and thermal requirements of the target environment.

Part Context

This part belongs to the 74ALS series of logic integrated circuits, known for advanced low-power Schottky technology. It serves as a digital storage element within standard logic families, providing reliable data retention and transfer capabilities for synchronous digital systems designed around classic semiconductor architectures.

Replacement Considerations

Direct substitutes include the N74ALS564AN-B from NXP Semiconductors. Verify pin compatibility and electrical characteristics when transitioning between manufacturers to maintain circuit functionality.