TC74VHC02FTELM

Inverter Gates Overview

The TC74VHC02FTELM is a Quad 2-Input NOR Gate manufactured by Toshiba Semiconductor and Storage. It utilizes advanced high-speed silicon gate C2MOS technology to achieve performance comparable to Bipolar Schottky TTL while maintaining low power consumption. The device operates within a supply voltage range of 2.0 V to 5.5 V and supports an operating temperature range from -40°C to 85°C. Key electrical parameters include a typical propagation delay of 3.6 ns at 5 V, a maximum quiescent current of 2 μA, and balanced propagation delays (tpLH ≈ tpHL).

Inverter Gates Feature Summary

• High-speed operation with balanced propagation delays.
• Low power dissipation suitable for battery backup systems.
• High noise immunity with stable buffer output stages.
• Power-down protection on all inputs prevents device destruction.

Inverter Gates Applications

• General electronics applications including computers and office equipment.
• Interfacing between 5 V and 3 V logic systems.
• Industrial robots and measuring equipment.
• Home electronics appliances.

Inverter Gates Procurement Notes

Verify the specific package suffix against official documentation, as 'ELM' denotes a TSSOP variant which may differ in physical dimensions or weight compared to standard FT packages. Confirm RoHS compliance status directly with the manufacturer or authorized distributors, as environmental declarations are subject to change. Ensure design reviews account for the absolute maximum ratings to prevent reliability degradation under heavy loads.

Inverter Gates Selection Notes

Select this component when a quad 2-input NOR function is required in space-constrained designs due to its compact TSSOP packaging. It is appropriate for applications demanding high noise immunity and low static power consumption. Consider the wide operating voltage range if the system involves mixed-voltage interfaces or battery-powered operation where voltage levels fluctuate between 2 V and 5.5 V.

Inverter Gates Part Context

This part belongs to the TC74VHC series of CMOS digital integrated circuits produced by Toshiba Semiconductor and Storage. The series is characterized by high-speed operation similar to equivalent Bipolar Schottky TTL devices but with significantly lower power dissipation. The TC74VHC02 specifically implements the NOR logic function, providing four independent gates in a single package.

Inverter Gates Replacement Considerations

The datasheet notes pin and function compatibility with the 74ALS02. Designers should verify that the replacement source meets the specific electrical characteristics of the TC74VHC series, particularly regarding input protection and voltage ranges, rather than relying solely on logical equivalence.

Inverter Gates FAQ

What is the purpose of the input protection circuit?

The input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply voltage, preventing device destruction due to mismatched supply and input voltages during power-down states.

How does the device handle unused inputs?

While not explicitly detailed in the provided text, standard practice for CMOS devices requires unused inputs to be tied to either VCC or GND to prevent floating states that could increase power consumption or cause instability.