74VCXH16374MTD

Overview

The Fairchild Semiconductor 74VCXH16374MTD is a low-voltage 16-bit D-type flip-flop featuring bus-hold functionality. It integrates two independent 8-bit elements with non-inverting, three-state outputs designed for byte-controlled bus-oriented applications. The device operates within a supply voltage range of 1.65V to 3.6V and supports a maximum clock frequency of 250 MHz. Key electrical parameters include a maximum propagation delay of 3ns at 3.3V with 30pF load capacitance and a static current consumption of 20µA. It is housed in a 48-TFSOP package measuring 6.10mm in width.

Feature Summary

• Integrates sixteen non-inverting D-type flip-flops organized into two 8-bit elements for byte control
• Features bus-hold circuitry to maintain stable logic levels on floating inputs
• Provides three-state outputs suitable for direct connection to system buses
• Operates across a wide low-voltage supply range from 1.65V to 3.6V

Applications

• Bus-oriented memory interface circuits
• High-speed data register systems
• Byte-controlled communication interfaces
• Low-voltage digital signal processing buffers

Procurement Notes

Verify the manufacturer designation carefully, as this component is associated with both Fairchild Semiconductor and ON Semiconductor due to corporate acquisition history. Confirm the specific suffix 'MTD' corresponds to the 48-TFSOP package variant. Ensure compliance with RoHS standards if required by your application specifications. Cross-reference datasheet revisions to confirm pinout consistency before integration.

Selection Notes

Select this component when designing systems requiring high-speed 16-bit latching with minimal power consumption. The 250 MHz clock capability suits demanding timing constraints. The bus-hold feature eliminates the need for external pull-up or pull-down resistors, simplifying board layout. Ensure the operating voltage aligns with the 1.65V to 3.6V specification to guarantee proper logic threshold performance.

Part Context

This part belongs to the VCX family of low-voltage CMOS logic devices. It serves as a specialized flip-flop solution for modern embedded systems transitioning to lower voltage domains. The dual 8-bit architecture allows flexible configuration for parallel data handling. It complements other bus drivers and level shifters in complex digital logic networks.

Replacement Considerations

Public confirmed substitutes include SN74ALVCH162374GR and SN74ALVCH16374DGGR from Texas Instruments. Verify pin compatibility and electrical characteristics against these alternatives before substitution.