NXP Semiconductors 74ABT04D/AUJ

Overview

74ABT04D/AUJ from Nexperia is a hex inverter logic IC designed for TTL-level signal inversion in digital control and interface circuits, operating from 4.5 V to 5.5 V supply, delivering ±20 mA output drive, with IOFF-enabled partial power-down protection, and specified across -40 °C to +85 °C industrial temperature range.

For engineers reviewing the 74ABT04D/AUJ datasheet, 74ABT04D/AUJ pinout, 74ABT04D/AUJ application, or 74ABT04D/AUJ equivalent, this device supports robust level translation in mixed-voltage systems, offers low propagation delay (1.0–4.1 ns), high noise immunity (VIH ≥ 2.0 V, VIL ≤ 0.8 V), and latch-up protection exceeding 500 mA - critical for bus buffering and power-gated subsystems.

Technical Context

The 74ABT04D/AUJ implements six independent CMOS-compatible inverters using BiCMOS process technology, enabling TTL-level input compatibility and high-speed switching with sub-5 ns propagation delays. Its IOFF circuitry actively disables outputs during VCC = 0 V, preventing backflow current when powered down.

Each inverter exhibits rail-to-rail output swing under load (VOH ≥ 2.5 V at -15 mA, VOL ≤ 0.5 V at 20 mA), operates with <5 pF input capacitance, and maintains stable performance across full industrial temperature range without derating.

Key Specifications

Pinout & Package

74ABT04D/AUJ is housed in a plastic small outline package (SO14) per SOT108-1, with 14 leads, 3.9 mm body width, and standard 1.27 mm lead pitch. Pin 1 is marked by notch or bevel; device is surface-mount compatible with reflow soldering profiles per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter applications.

Compared with 74ABT04PW, the 74ABT04D/AUJ offers identical logic behavior but greater mechanical robustness and thermal mass in SO14; versus SN74ABT04N, it adds critical IOFF protection for modern modular electronics - making it the sole choice for power-gated or hot-pluggable systems.

Availability

74ABT04D/AUJ is available at Aetrix Electronics and suitable for industrial bus buffering, digital control signal inversion, hot-swappable module interface, and legacy system signal conditioning requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 74ABT04D/AUJ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The 74ABT04D/AUJ belongs to Nexperia's ABT-series advanced bi-directional TTL-compatible logic family, engineered for high-speed, low-power, and robust partial-power-down operation in industrial control and infrastructure equipment.

FAQ

What is the maximum propagation delay of the 74ABT04D/AUJ across its full operating temperature range?

The 74ABT04D/AUJ has a maximum tPHL of 3.0 ns and tPLH of 4.1 ns over -40 °C to +85 °C at VCC = 5.0 V ± 0.5 V. These values are guaranteed by design and measured per JEDEC test conditions with 50 pF load and 1.5 V switching threshold. The 74ABT04D/AUJ maintains consistent timing performance without derating across its full industrial temperature range.

Does the 74ABT04D/AUJ support partial power-down, and how does it function?

Yes, the 74ABT04D/AUJ features integrated IOFF circuitry that automatically disables all six outputs when VCC = 0 V, preventing damaging backflow current from live signal lines into the unpowered device. This behavior is intrinsic to the BiCMOS design and requires no external control - the 74ABT04D/AUJ enters safe high-impedance state autonomously during power loss or sequencing gaps.

What are the absolute maximum ratings for supply voltage and input voltage on the 74ABT04D/AUJ?

The 74ABT04D/AUJ has an absolute maximum supply voltage (VCC) of +7.0 V and input voltage (VI) of -1.2 V to +7.0 V, per IEC 60134 limiting values. Exceeding these may cause permanent damage. Recommended operating VCC is strictly 4.5 V to 5.5 V; inputs must remain within GND to VCC during normal operation to ensure reliable switching and avoid latch-up.

Can the 74ABT04D/AUJ drive standard TTL loads directly, and what is its fan-out capability?

Yes, the 74ABT04D/AUJ can directly drive standard TTL loads: each output sinks up to 20 mA (IOL) and sources up to -15 mA (IOH), meeting or exceeding the input current requirements of 74LS-series devices. At worst-case conditions, one 74ABT04D/AUJ output can drive ≥20 LS-TTL inputs, making it suitable for bus buffering and multi-load signal distribution without external amplification.

Is the 74ABT04D/AUJ pin-compatible with other 74-series hex inverters like the 74HC04 or 74LS04?

No, the 74ABT04D/AUJ is not pin-compatible with 74HC04 or 74LS04 despite sharing the same SO14 footprint and basic function. It uses different internal architecture (BiCMOS), higher drive strength, IOFF support, and distinct DC characteristics (e.g., VIH ≥ 2.0 V vs. 74HC04's VIH ≥ 3.15 V). Substitution requires verification of timing, loading, and power-down behavior - the 74ABT04D/AUJ must be selected intentionally for its specific ABT-family advantages.