74VHCT74M

Overview

The MC74VHCT74M is an advanced high-speed CMOS dual D-type flip-flop fabricated with silicon gate technology. It operates within a voltage range of 2.0 V to 5.5 V, achieving performance comparable to Bipolar Schottky TTL while maintaining low power dissipation. Key electrical parameters include a typical maximum frequency (fMAX) of 160 MHz at 25°C and a propagation delay (tpd) of approximately 4.1 ns at 5.0 V. The device features inputs tolerant up to 7 V, enabling interface between 5 V and 3 V systems.

Feature Summary

• Provides high-speed operation similar to equivalent Bipolar Schottky TTL
• Maintains CMOS low power dissipation characteristics
• Includes power-down protection on all inputs and outputs
• Features input voltage tolerance up to 7 V for system interfacing

Applications

• High-speed data storage registers
• Shift registers in digital signal processing
• Parallel-to-serial conversion circuits
• Timing control logic in embedded systems

Procurement Notes

Verify the specific suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure the ordered part matches the required operating temperature range and RoHS compliance status as defined in the latest datasheet revision. Cross-reference the full ordering code with onsemi's current product availability lists.

Selection Notes

Select this component when design requirements demand VHCT speed levels with HCT pin compatibility. It is suitable for applications requiring 5 V to 3 V level translation due to its 7 V input tolerance. Consider the trade-off between the higher speed of VHCT and the lower cost of standard HC/HCT families if timing margins allow.

Part Context

This device belongs to the VHCT family, which bridges the gap between standard CMOS and TTL logic speeds. It offers improved switching characteristics over traditional 74HC series parts while retaining the low static power consumption inherent to CMOS technology. The dual D-type configuration allows for compact implementation of sequential logic functions.

Replacement Considerations

Direct functional substitutes include MC74VHCT74AM and MM74VHCT74M. Verify pinout compatibility and electrical specifications before substitution. Alternative packages such as TSSOP or SOIC may require mechanical clearance verification.