74F564PC

Flip Flops Overview

The Fairchild Semiconductor 74F564PC is an octal D-type flip-flop featuring three-state outputs, housed in a 20-pin plastic dual-in-line package (PDIP). It operates on a single supply voltage ranging from 4.5V to 5.5V. The device includes a buffered common clock input and a buffered common output enable pin for synchronized data latching and bus control. It supports a maximum operating frequency of 80MHz at nominal supply conditions with a load capacitance of 50pF. The component functions within a temperature range of -40°C to 85°C.

Flip Flops Feature Summary

• Octal configuration providing eight independent D-type flip-flops in a single package
• Buffered common clock and output enable inputs for reliable signal integrity
• Three-state outputs allowing direct connection to system buses without external drivers

Flip Flops Applications

• High-speed parallel data storage in digital systems
• Bus interface circuits requiring tri-state isolation
• Synchronous logic design involving multiple data registers

Flip Flops Procurement Notes

Verify the specific suffix 'PC' against the manufacturer's current product status, as legacy 74F series components may be discontinued or subject to obsolescence notices. Confirm that the 20-pin DIP package remains available through authorized distributors or surplus channels. Ensure compliance with RoHS directives if required by the target application environment. Cross-reference the datasheet revision date to confirm electrical characteristics match the intended design specifications.

Flip Flops Selection Notes

Select this component when an octal register with tri-state capability is required for high-speed synchronous applications. The 74F series offers faster propagation delays compared to standard 74LS counterparts but consumes more power. Consider the 20-pin DIP form factor for prototyping or through-hole assembly requirements. Evaluate power dissipation constraints due to the higher current draw typical of the F/FAST logic family during switching transitions.

Flip Flops Part Context

The 74F564 belongs to the Fairchild 74F (Fast) logic family, known for high-speed performance in TTL-compatible designs. As an octal flip-flop, it consolidates eight bits of storage into one integrated circuit, reducing board space compared to individual D-flip-flops. The inclusion of buffered control inputs enhances noise immunity and timing accuracy in complex digital architectures.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers: 74F564N, 74F564SC.