74HCT02BQ,115

Overview

The Nexperia 74HCT02BQ,115 is a quad 2-input NOR gate belonging to the HCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The device features TTL-level input compatibility and includes clamp diodes on inputs for interfacing with voltages exceeding VCC. It utilizes a DHVQFN14 package (SOT762-1) with dimensions of 2.5 mm x 3 mm x 0.85 mm. Static characteristics include a maximum low-level output voltage of 0.4 V at 5.2 mA load and a maximum high-level output voltage drop of 1.3 V at -4.0 mA load under specified conditions.

Feature Summary

• TTL-compatible input levels ensure direct interface with standard TTL logic systems.
• CMOS technology provides low power dissipation while maintaining high noise immunity.
• Input clamp diodes allow safe interfacing with current-limiting resistors for voltages above VCC.
• Robust latch-up performance exceeds 100 mA per JESD 78 Class II Level B standards.

Applications

• Digital logic circuits requiring NOR gate functionality
• Signal processing interfaces utilizing TTL-to-CMOS translation
• General-purpose logic applications in industrial environments

Procurement Notes

Verify that the specific ordering suffix

Selection Notes

Select this component when TTL-level input compatibility is required alongside CMOS output drive capabilities. The DHVQFN14 package offers a compact footprint suitable for space-constrained designs. Ensure the application environment remains within the specified -40 °C to +125 °C operating temperature range to maintain guaranteed static and dynamic performance parameters.

Part Context

This part belongs to the 74HCT02 series of quad 2-input NOR gates manufactured by Nexperia. The 'BQ' designation indicates the DHVQFN14 package variant, which is a plastic dual-in-line compatible thermal enhanced very thin quad flat package without leads. This series is part of the broader 74HC/HCT logic family designed for general-purpose digital applications.

Replacement Considerations

Direct pin-to-pin replacements may include other manufacturers' 74HCT02 devices in DHVQFN14 packages. Verify electrical specifications such as propagation delay and output current drive against the original datasheet requirements before substitution.

FAQ

What is the input voltage level specification for the 74HCT02?

The 74HCT02 features TTL-level input compatibility, allowing it to interface directly with Transistor-Transistor Logic (TTL) outputs.

Does the device support operation with input voltages higher than VCC?

Yes, the inputs include clamp diodes, which enable the use of current limiting resistors to safely interface inputs to voltages in excess of VCC.