CD74HCT534E

Overview

The CD74HCT534E is an octal positive-edge-triggered inverting D-type flip-flop with 3-state outputs, belonging to the HCT CMOS logic family. It operates within a supply voltage range of 2V to 6V and supports data rates up to 28MHz at 5V. The device features a propagation delay of 35ns and low static current consumption of 0.08mA. It is housed in a 20-pin PDIP package and functions reliably across an extended temperature range from -55°C to 125°C.

Feature Summary

• Octal positive-edge-triggered D-type flip-flops with inverting outputs
• Three-state output capability for bus-oriented designs
• High-speed CMOS technology compatible with TTL inputs
• Extended operating temperature range for industrial applications

Applications

• Bus-oriented memory register implementations
• Portable battery-powered systems requiring low power
• High-density signal buffering applications

Procurement Notes

Verify the specific manufacturer source, as Texas Instruments products may be distributed by authorized partners or third-party resellers like Rochester Electronics. Confirm RoHS compliance status and lead times directly with the supplier, as these details vary by batch and distribution channel. Ensure the part number suffix matches your packaging requirements.

Selection Notes

Select this component when designing systems requiring octal storage with tri-state control and high noise immunity. The HCT series ensures compatibility with standard 5V TTL logic levels while offering CMOS power efficiency. Consider the 20-pin DIP package for through-hole prototyping or legacy board layouts requiring robust mechanical mounting.

Part Context

This device is part of the Texas Instruments CD74HCTxx series, which bridges CMOS performance with TTL input compatibility. It serves as a core building block for digital storage and buffering in mixed-logic environments. The octal configuration allows efficient handling of wide data buses in microprocessor-based systems.

Replacement Considerations

Compatible substitutes include the SN74HCT534N and generic 74HCT534 equivalents from other manufacturers. Verify pinout compatibility and electrical specifications before substitution. Alternative packages such as SOIC or TSSOP variants may require adapter considerations.