74HCT30DB,112

Overview

The Nexperia 74HCT30DB,112 is an 8-input NAND gate belonging to the 74HCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input levels. The device features clamp diodes on all inputs, allowing interface with voltages exceeding VCC when current-limiting resistors are used. It provides high noise immunity and low power dissipation characteristics typical of CMOS technology. The component is housed in a 14-lead SO plastic small outline package (SOT108-1) designed for surface mount applications.

Feature Summary

• Features eight dedicated data inputs and a single complementary output for complex logic gating.
• Includes input clamp diodes to facilitate safe interfacing with external circuits exceeding the supply voltage.
• Delivers high noise immunity and low power consumption suitable for dense digital designs.

Applications

• Implementing multi-variable logic control functions in digital systems
• Signal conditioning and processing in industrial automation equipment
• Building blocks for custom combinational logic circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm the package type and tape-and-reel specifications. Confirm that the intended application environment remains within the specified temperature and voltage limits defined in the product data sheet. Ensure compliance with RoHS directives if required by the end-use regulations.

Selection Notes

Select this component when an 8-input NAND function is required with TTL-compatible input thresholds. The 74HCT series ensures compatibility with standard TTL logic families while offering the lower power consumption of CMOS technology. Verify that the 14-lead SO package dimensions fit the available PCB footprint constraints.

Part Context

This part belongs to the widely adopted 74HCT series of logic integrated circuits, which bridges the gap between older TTL standards and modern CMOS performance. The 74HCT30 specifically addresses scenarios requiring high fan-in logic operations without the need for multiple cascaded gates, simplifying circuit design and reducing component count.

Replacement Considerations

Check for updated package variants such as TSSOP versions listed in the ordering information table. Verify cross-compatibility with other manufacturers' 74HCT30 equivalents regarding pinout and electrical specifications before substitution.