TC74HC574AF(EL,F)

Flip Flops Overview

The TC74HC574AF(EL,F) is an octal D-type flip-flop with 3-state outputs manufactured by Toshiba Semiconductor and Storage. It belongs to the HC CMOS logic series, offering high-speed operation comparable to LSTTL while maintaining low power dissipation. The device features non-inverting outputs controlled by a clock input (CK) and an output enable input (OE). It operates within a supply voltage range of 2V to 6V and supports a maximum operating frequency of 24 MHz at nominal supply. The component is housed in a 20-pin SOP package and functions reliably across an industrial temperature range from -40°C to +85°C.

Flip Flops Feature Summary

• Octal D-type flip-flop architecture with 3-state output capability for bus-oriented systems
• High-speed CMOS technology ensuring performance similar to equivalent LSTTL devices
• Integrated protection circuits on all inputs against static discharge and transient excess voltage

Flip Flops Applications

• Bus-oriented memory register implementations
• Portable battery-powered equipment requiring low power consumption
• Industrial control systems operating within extended temperature ranges

Flip Flops Procurement Notes

Verify the specific ordering suffix EL,F corresponds to the required tape and reel packaging configuration. Confirm RoHS compliance status matches current regulatory requirements for your assembly process. Ensure the SOP-20 footprint dimensions align with your PCB design constraints. Cross-reference the manufacturer's latest datasheet revision to confirm pinout and electrical characteristics have not changed.

Flip Flops Selection Notes

Select this component when an octal storage element with tri-state outputs is required for data bus applications. It is suitable for designs needing LSTTL-compatible speed without the associated power overhead. Consider the 2V to 6V supply range for flexibility in system voltage architectures. Verify that the 24 MHz maximum frequency meets the timing requirements of the target clock signal.

Flip Flops Part Context

This part is part of Toshiba's TC74HC5xxA series of digital integrated circuits. It serves as the non-inverting counterpart to the TC74HC564AF(EL,F), which provides inverting outputs. Both devices share identical pinouts and electrical specifications, differing only in output polarity. They are designed for general-purpose logic applications where reliable data latching and bus driving are necessary.

Flip Flops Replacement Considerations

The TC74HC564AF(EL,F) is a direct functional substitute if inverting outputs are acceptable. Other octal D-type flip-flops with 3-state outputs from different manufacturers may require verification of pin compatibility and electrical parameter alignment.