74HCT08D/AUJ

Overview

The Nexperia 74HCT08D/AUJ is a quad 2-input AND gate in the HCT logic family, housed in a 14-lead SO (SOT108-1) plastic small outline package. 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-compatible input levels, high noise immunity, and CMOS low power dissipation. Static characteristics include a maximum input leakage current of ±1 μA at 5.5 V and a maximum supply current of 40 μA under specified conditions.

Feature Summary

• TTL-compatible input levels for direct interface with standard logic families
• High noise immunity and latch-up performance exceeding 100 mA per JESD 78 Class II Level B
• CMOS low power dissipation across the operating voltage range
• Input clamp diodes enable interfacing to voltages exceeding VCC using current limiting resistors

Applications

• Digital signal processing systems requiring AND logic functions
• Industrial control applications utilizing mixed 5V logic environments
• Test equipment involving parallel data gating

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and ensure the component meets the required JEDEC standards for your application environment. Check for any recent product change notices that may affect pinout or electrical parameters before finalizing procurement.

Selection Notes

Select this component when TTL-level compatibility is required alongside CMOS performance benefits. The 74HCT08D variant is suitable for designs needing robust noise immunity and wide operating temperature ranges. Ensure the design accommodates the specified propagation delay and transition times under the intended load capacitance conditions.

Part Context

This part belongs to the Nexperia 74HC/HCT08 series of quad 2-input AND gates. The HCT variant specifically bridges the gap between older TTL logic standards and modern CMOS technology, offering improved speed and lower power consumption while maintaining compatible input thresholds. It is widely used in general-purpose digital logic circuits.

Replacement Considerations

Direct functional equivalents include other manufacturers' 74HCT08 devices in SO14 packages. Verify pin compatibility and electrical specifications against the original datasheet requirements before substitution.