CD74HCT173E

Overview

The CD74HCT173E is an octal D-type flip-flop with three-state outputs manufactured by Harris Corporation. It operates within a supply voltage range of 4.5V to 5.5V and features low static power consumption typical of the HCT logic series. The device provides eight independent D-type flip-flops, each with a clock input and a three-state output control. It is designed for surface-mount or through-hole applications depending on the specific package variant, offering reliable data storage and transfer capabilities in digital systems.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops for parallel data handling
• Three-state outputs allowing direct bus interfacing without additional buffer circuitry
• Compliant with JEDEC standards for CMOS operation ensuring compatibility with standard logic families

Applications

• Parallel data storage registers in microprocessor-based systems
• Shift register configurations for serial-to-parallel data conversion
• Buffer memory elements in high-speed digital signal processing circuits

Procurement Notes

Verify the manufacturer source carefully as Harris Corporation's semiconductor division has undergone acquisitions. Confirm whether the component is produced under the original Harris branding or subsequent entities such as Intersil or Renesas. Ensure the datasheet matches the specific suffix requirements for voltage levels and package types to avoid integration errors in existing designs.

Selection Notes

Select this component when an octal D-type flip-flop with three-state outputs is required for HCT-compatible logic levels. Consider the operating temperature range and package availability relative to board space constraints. Compare propagation delays and output drive currents against system timing requirements to ensure signal integrity across the intended frequency range.

Part Context

This part belongs to the CD74HCT series of high-speed CMOS logic devices. It is functionally compatible with other HCT family members, allowing mixed technology design approaches. The device supports standard TTL input levels while utilizing CMOS technology for lower power consumption compared to older LS series counterparts.

Replacement Considerations

CD74HCT173M

FAQ

What is the logic family compatibility of the CD74HCT173E?

It is compatible with the HCT (High-speed CMOS Technology) logic family, accepting TTL input levels.

Does the device include asynchronous reset functionality?

Standard datasheets for the CD74HCT173 indicate it functions as a basic D-type flip-flop; verify if a specific variant includes a master reset pin in the official documentation.