Nexperia USA Inc. 74ABT16240ADGG,118

Overview

74ABT16240ADGG,118 from Nexperia is a 16-bit inverting buffer/line driver with 3-state outputs in a TSSOP48 package, operating from 4.5 V to 5.5 V, delivering ±64 mA/–32 mA drive capability, and specified for –40 °C to +85 °C industrial temperature range. It functions as four independent 4-bit buffers, each controlled by dedicated output enables (1OE–4OE), and integrates IOFF circuitry for safe partial power-down in bus-hold or hot-swap systems.

For engineers reviewing the 74ABT16240ADGG,118 datasheet, 74ABT16240ADGG,118 pinout, 74ABT16240ADGG,118 application, or 74ABT16240ADGG,118 equivalent, key selection criteria include TTL-compatible input/output levels, sub-4 ns propagation delay (tPLH/tPHL), high-impedance enable timing (tPZH/tPLZ), and multi-GND/VCC pin layout for noise suppression in dense PCB layouts.

Technical Context

This device implements a BiCMOS-based inverting buffer architecture with four independent 4-bit sections, each featuring LOW-active output enables (1OE–4OE) that force corresponding Y outputs into high-impedance state. The IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current during power sequencing.

Each section supports true TTL-level interfacing: VIH ≥ 2.0 V, VIL ≤ 0.8 V, VOH ≥ 2.0 V at –32 mA, VOL ≤ 0.55 V at 64 mA. Propagation delays are tightly controlled-tPLH/tPHL ≤ 3.7 ns over full temperature range-with matched enable/disable timing (tPZH ≤ 4.7 ns, tPLZ ≤ 4.1 ns) critical for synchronous bus arbitration.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), 6.1 mm body width, 48-pin thin shrink small outline with exposed thermal pad not present; features 8 GND pins (pins 4, 10, 15, 21, 28, 34, 39, 45) and 4 VCC pins (7, 18, 31, 42) for low-noise power distribution.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit inverting buffer applications.

Compared with SN74ABT16240DGGR, the 74ABT16240ADGG,118 offers tighter timing and lower IOFF leakage for robust hot-swap; versus 74LVT16240ADGG,118, it delivers double the sink current and full 5 V operation essential for legacy system upgrades.

Availability

74ABT16240ADGG,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom line card interfaces, ATE pattern generation, and medical imaging data acquisition requiring stable component supply across long-lifecycle programs.

Supply support for 74ABT16240ADGG,118 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-performance, reliable standard logic and discrete components, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.

The 74ABT series targets high-speed, noise-immune 5 V digital interfacing-designed specifically for industrial control, telecom infrastructure, and test equipment demanding robust timing, drive strength, and power sequencing resilience.

FAQ

Does the 74ABT16240ADGG,118 support live insertion in powered-backplane systems?

Yes. Its integrated IOFF circuitry disables outputs when VCC = 0 V, preventing backflow current during hot-plug events. Combined with HBM >2000 V ESD protection and robust latch-up immunity (>500 mA), it meets live insertion requirements for modular telecom and industrial backplanes.

What is the maximum capacitive load this device can drive while maintaining specified timing?

Per Nexperia's test conditions in Table 8, the device is characterized up to 50 pF load capacitance with 500 Ω termination. At 64 mA sink drive and sub-4 ns propagation, it reliably drives typical PCB traces plus one standard TTL input (≈10 pF) without degrading timing margins in real-world layouts.

How does the four-section output enable architecture improve system-level bus management?

Each OE pin controls four dedicated outputs (e.g., 1OE → 1Y0–1Y3), enabling granular bus partitioning. This allows independent activation of peripheral modules-such as sensor banks or memory banks-without disabling the entire 16-bit path, reducing arbitration overhead and improving real-time responsiveness.

Can this device interface directly with 3.3 V microcontrollers without level shifters?

No. Its inputs require VIH ≥ 2.0 V but are only guaranteed compatible with 5 V TTL logic; 3.3 V logic HIGH may fall below VIH threshold under worst-case conditions. For 3.3 V MCU interfacing, use the 74LVT16240ADGG,118 variant or add discrete level translation.