74ACQ374PC

Overview

The onsemi 74ACQ374PC is an octal D-type flip-flop featuring three-state outputs, housed in a 20-pin PDIP package. It operates within a supply voltage range of 2V to 6V and supports a maximum clock frequency of 90MHz. The device exhibits a typical propagation delay of 8.5ns at 5V with 50pF load capacitance. It provides symmetric output drive currents of 24mA for both high and low states. The component functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Octal D-type configuration with non-inverting data paths
• Three-state output capability for bus line driving
• High-speed operation up to 90MHz clock frequency
• Symmetric 24mA output drive strength

Applications

• Parallel data storage in digital systems
• Bus interface buffering applications
• Register file implementation
• Timing synchronization circuits

Procurement Notes

Verify the obsolete status of this specific part number before procurement planning. Confirm availability of qualified replacement components such as the CD74AC374E or SN74AC374N. Ensure that alternative sources meet the required electrical specifications and package dimensions for direct integration into existing designs without modification.

Selection Notes

Select this component when high-speed parallel data latching is required with bus isolation capabilities. The wide supply voltage range allows flexibility in system power architectures. Consider the obsolete status and prioritize verified substitutes like the CD74AC374E for new production runs to ensure long-term supply chain stability and consistent performance characteristics.

Part Context

This device belongs to the 74ACQ logic family, designed for advanced CMOS applications requiring high speed and low power consumption. The 74ACQ series offers improved performance over standard AC logic while maintaining pin compatibility. The octal flip-flop architecture enables efficient handling of multi-bit data streams in complex digital processing environments.

Replacement Considerations

Public confirmed substitutes include the CD74AC374E and SN74AC374N. These alternatives provide equivalent functionality and pinout compatibility. Verify that the substitute parts meet the same electrical parameters and operating temperature ranges required by the original design specifications.