CD74ACT174E

Overview

The CD74ACT174E is a hex D-type flip-flop from the Texas Instruments ACT logic series, housed in a 16-pin PDIP package. It features six independent circuits with non-inverting CMOS outputs and TTL-compatible inputs. The device operates within a supply voltage range of 1.5 V to 5.5 V, supporting a propagation delay of 14 ns. Output drive capability includes high-level current of -24 mA and low-level current of 24 mA. It functions reliably across an extended temperature range from -55°C to +125°C.

Feature Summary

• Integrates six independent D-type flip-flops for parallel data storage applications
• Provides TTL-compatible input thresholds for direct interfacing with standard logic families
• Delivers strong CMOS output drive currents suitable for bus driving and fan-out requirements

Applications

• Parallel-to-serial data conversion circuits
• Register stages in digital signal processing systems
• State machine implementation in control logic

Procurement Notes

Verify the specific ordering suffix matches the required package type and environmental rating. Confirm that the ACT series specifications align with the target system's voltage levels and timing constraints. Ensure the PDIP-16 through-hole mounting style is compatible with the intended PCB layout and assembly process before finalizing procurement.

Selection Notes

Select this component when a hex configuration with TTL-compatible inputs is required alongside robust CMOS output drive capabilities. The wide supply voltage range allows flexibility in power design. Consider the 14 ns propagation delay against system clock speeds to ensure timing margins are met within the specified industrial temperature range.

Part Context

This part belongs to the CD74ACT family of advanced CMOS logic devices manufactured by Texas Instruments. The ACT series combines the speed of bipolar logic with the low power consumption of CMOS technology. This specific model provides a compact solution for implementing multiple flip-flop stages in a single integrated circuit package.

Replacement Considerations

CD74ACT174M96E4