74HCT27D,652

Overview

The Nexperia 74HCT27D,652 is a triple 3-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 utilizes a 14-lead SOIC (SOT108-1) package. The device features TTL-compatible input levels and includes internal clamp diodes on inputs for interfacing with voltages exceeding VCC. It supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Triple 3-input NOR logic function
• TTL-compatible input levels
• Input clamp diodes for overvoltage protection

Applications

• Digital logic circuit design
• Signal processing systems
• Industrial control applications

Procurement Notes

Verify the specific ordering suffix against official Nexperia documentation to confirm package type and temperature rating. Ensure compatibility with system voltage requirements and environmental conditions before procurement. Confirm current product status as specifications may change.

Selection Notes

Select this component when a triple 3-input NOR gate with TTL-compatible inputs is required. The HCT series ensures compatibility with standard TTL logic families while offering CMOS performance characteristics. Verify that the SOIC package fits the available PCB footprint.

Part Context

This part belongs to the Nexperia 74HCT27 series, which provides triple 3-input NOR gates in various packages including SOIC, TSSOP, and DHVQFN. The HCT variant specifically targets applications requiring direct interface with TTL logic devices.

Replacement Considerations

Check for equivalent parts such as the 74HC27D or other manufacturers' triple 3-input NOR gates. Ensure pinout compatibility and electrical parameter alignment before substitution.