CD74AC174E

Overview

The CD74AC174E is a hex D-type flip-flop manufactured by Harris Corporation, belonging to the AC logic series. It features six independent circuits in a 16-pin PDIP package. The device operates with a supply voltage range of 2V to 6V and supports input levels compatible with TTL standards. Key electrical parameters include a propagation delay of 14 ns, high-level output current of -24 mA, and low-level output current of 24 mA. It functions within a temperature range of -55°C to +125°C.

Feature Summary

• Hex configuration providing six independent D-type flip-flops for complex sequential logic applications.
• TTL-compatible input structure ensures seamless integration with standard digital logic families.
• High drive capability with 24 mA output sourcing and sinking currents for robust signal transmission.

Applications

• Parallel-to-serial data conversion circuits
• Register storage elements in microprocessor interfaces
• Shift register construction for data handling

Procurement Notes

Verify manufacturer origin as Harris Corporation or authorized licensee. Confirm RoHS compliance status via official documentation. Ensure package integrity matches 16-DIP specifications. Cross-reference datasheet revisions for parameter consistency. Validate operating temperature range requirements against application constraints.

Selection Notes

Select this component when hex D-type storage is required with TTL input compatibility. Consider the 2V to 6V supply range for flexible power design. Evaluate the 14 ns propagation delay against system timing requirements. Ensure through-hole mounting fits the PCB layout constraints.

Part Context

Part of the Harris Corporation 74AC family, designed for high-speed CMOS applications. The CD74AC174E specifically addresses needs for multiple synchronized storage elements in a single package. It bridges performance gaps between standard HC and faster ACT series devices.

Replacement Considerations

CD74ACT174E offers similar functionality with potentially different speed characteristics. Verify pinout compatibility before substitution. Check voltage and current specifications to ensure equivalent performance in the target circuit.