74LCX374BQX

Overview

The 74LCX374BQX is a low-voltage octal D-type flip-flop manufactured by Fairchild Semiconductor. It features eight positive-edge-triggered D-type flip-flops with tri-state outputs, housed in a 20-WFQFN exposed pad package. The device operates within a voltage range of 1.65V to 3.6V and supports a maximum clock frequency of 150 MHz. It provides 5V tolerant inputs and outputs, ensuring compatibility with mixed-voltage systems. The component exhibits a maximum propagation delay typical of the LCX series, optimized for high-speed digital applications requiring low power consumption and robust signal integrity.

Feature Summary

• Octal D-type flip-flop architecture with single element configuration
• Tri-state non-inverted outputs for bus driving applications
• Positive edge triggering mechanism for precise data capture
• 5V tolerant I/O capabilities for mixed-voltage system integration

Applications

• High-speed data storage registers in communication systems
• Bus driver circuits requiring tri-state control
• Memory interface modules in consumer electronics
• Digital signal processing data path buffering

Procurement Notes

Verify the manufacturer status as Fairchild Semiconductor has been acquired by ON Semiconductor. Confirm that the specific part number 74LCX374BQX is available from authorized distributors or check for equivalent current production parts if this specific variant is discontinued. Ensure the package type matches the 20-WFQFN specification during sourcing.

Selection Notes

Select this component when an octal D-type flip-flop with tri-state outputs is required for low-voltage logic applications. The 5V tolerance feature makes it suitable for interfacing between 3.3V logic domains and 5V peripherals. Consider the 20-WFQFN package for space-constrained designs requiring thermal exposure pad connectivity.

Part Context

This component belongs to the 74LCX series, which represents low-voltage CMOS logic devices designed for high-speed performance with reduced power consumption. The 74LCX374 specifically implements the standard octal D-flip-flop function with added tri-state output capability, widely used in digital logic families for data latching and bus management tasks.

Replacement Considerations

Check for equivalents from ON Semiconductor, the successor to Fairchild. Verify pinout compatibility and electrical specifications against alternative octal D-flip-flops with tri-state outputs in similar packages.