74AC74SCX

Overview

The onsemi 74AC74SCX is a dual D-type flip-flop integrated circuit belonging to the 74AC logic family. It features positive-edge triggering with set and reset functions, housed in a 14-SOIC surface-mount package. The device operates within a supply voltage range of 2V to 6V and supports a maximum clock frequency of 160 MHz. Key electrical parameters include a propagation delay of 10ns at 5V with 50pF load, output currents of ±24mA, and a static current of 20µA. It functions across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Dual D-type flip-flops with positive-edge triggering
• Integrated set and reset control functions
• Complementary outputs for versatile logic interfacing

Applications

• Parallel data storage registers
• Shift register configurations
• Frequency division circuits
• Timing and synchronization logic

Procurement Notes

Verify component status as the 74AC74SCX is listed as obsolete by the manufacturer. Confirm availability of alternative packages or updated series equivalents such as MC74AC74DG. Ensure final design reviews account for end-of-life transitions and long-term supply continuity requirements before procurement commitment.

Selection Notes

Select this component for applications requiring high-speed edge-triggered storage within the AC logic family. Verify that the 2V to 6V operating range aligns with system power rails. Consider the 14-SOIC footprint constraints during PCB layout. Evaluate obsolescence status against project lifecycle needs and identify suitable cross-manufacturer replacements if necessary.

Part Context

This part belongs to the 74AC series of advanced CMOS logic devices manufactured by onsemi. It provides high-speed performance with low power consumption compared to standard TTL counterparts. The 74AC74 specifically implements dual D-type flip-flops, serving as a fundamental building block for sequential logic designs in digital systems.

Replacement Considerations

MC74AC74DG (onsemi) and SN74AC74DR (Texas Instruments) are confirmed direct substitutes.