74HCT03D,652

Overview

The Nexperia 74HCT03D,652 is a quad 2-input NAND gate with open-drain outputs housed in an SO14 (SOT108-1) package. It operates within a supply voltage range of 4.5 V to 5.5 V and supports temperatures from -40 °C to +125 °C. The device features TTL-level inputs, clamp diodes for input protection, and high noise immunity. Static characteristics include a maximum low-level output voltage of 0.4 V at 4.0 mA load and a maximum supply current of 40 μA.

Feature Summary

• Quad 2-input NAND logic function with open-drain outputs
• TTL-compatible input levels for direct interfacing
• Input clamp diodes enable voltage exceeding VCC via resistors
• High ESD protection meeting JESD standards

Applications

• General-purpose digital logic processing
• Bus interface circuits requiring open-drain topology
• Level shifting applications utilizing input clamp diodes
• Industrial control systems operating in extended temperature ranges

Procurement Notes

Verify the specific ordering suffix '652' against the manufacturer's current production status, as availability may vary by region. Confirm that the SO14 package variant matches the design footprint requirements. Ensure compliance with RoHS3 specifications and check for any recent Product Change Notices regarding marking or assembly updates before finalizing procurement.

Selection Notes

Select this component when a quad NAND gate with open-drain capability is required for wired-AND configurations. The HCT series ensures compatibility with TTL logic families while maintaining CMOS power efficiency. Verify that the application does not require active high-level output drive, as the open-drain architecture necessitates external pull-up resistors for proper HIGH state operation.

Part Context

This part belongs to the 74HCT logic family, designed for high-speed CMOS operation with TTL-compatible inputs. The 'D' designation indicates the SO14 plastic small outline package. The '652' suffix typically denotes specific packaging or marking variations defined by Nexperia. This series is widely used in general-purpose digital electronics where reliable switching and noise immunity are critical.

Replacement Considerations

Public confirmed substitute: 74HCT03D,653.

FAQ

What is the logic function of the 74HCT03D,652?

It functions as a quad 2-input NAND gate with open-drain outputs.

Can the inputs handle voltages higher than VCC?

Yes, the inputs include clamp diodes that allow interfacing to voltages in excess of VCC when used with current-limiting resistors.

What type of outputs does this device feature?

The device features open-drain outputs, which require external pull-up resistors to achieve a HIGH logic level.