SN74ACT564NS

Flip Flops Overview

The SN74ACT564NS is an octal D-type edge-triggered flip-flop from the Texas Instruments ACT logic family, housed in a 20-pin Small Outline Package (NS suffix). It features three-state outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The device exhibits a propagation delay of 10.5 ns, with output drive capabilities of -24 mA for high-level and 24 mA for low-level currents. It supports TTL input levels and functions reliably across an industrial temperature range of -40°C to +85°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type edge-triggered flip-flops in a single package
• Three-state outputs enable direct bus driving and system-wide data line management
• ACT series technology ensures compatibility with standard TTL input voltage levels while offering CMOS performance characteristics

Flip Flops Applications

• Parallel-to-serial and serial-to-parallel data conversion circuits
• High-speed buffering and register stages in digital communication systems
• Data acquisition systems requiring simultaneous sampling and storage

Flip Flops Procurement Notes

Verify the specific package suffix 'NS' corresponds to the Small Outline Package variant when sourcing. Confirm that the required operating temperature range aligns with the industrial specification limits. Ensure input signal levels are compatible with the specified TTL thresholds to guarantee correct logical operation during edge triggering events.

Flip Flops Selection Notes

Select this component when an octal register with tri-state capability is required for bus-oriented architectures. The ACT series offers a balance of speed and power consumption suitable for general-purpose digital logic applications. Consider the physical footprint of the SOIC-20 package against available board space constraints during the initial design phase.

Flip Flops Part Context

This part belongs to the broader SN74ACT564 family, which includes variants such as SN74ACT564N and SN74ACT564DW. These devices share identical internal logic functionality but differ primarily in packaging styles and mounting configurations. The ACT family represents a transition technology bridging older TTL standards with modern CMOS efficiency.

Flip Flops Replacement Considerations

Direct substitutes include SN74ACT564N for through-hole DIP packages or SN74ACT564DW for surface-mount SOIC options. Verify pinout compatibility and electrical specifications before swapping between different package types within the same functional family.