Nexperia USA Inc. 74LVC16240ADGG,518

Overview

74LVC16240ADGG,518 from Nexperia is a 16-bit inverting buffer/line driver with 3-state outputs, 5 V-tolerant I/O, and four independent output-enable inputs (1OE–4OE). It operates from 1.2 V to 3.6 V supply, supports mixed-voltage interfacing (3.3 V logic driving 5 V buses), and features IOFF partial power-down protection. It is used in address/data bus buffering for industrial controllers and FPGA I/O expansion.

For engineers reviewing the 74LVC16240ADGG,518 datasheet, 74LVC16240ADGG,518 pinout, 74LVC16240ADGG,518 application, or 74LVC16240ADGG,518 equivalent, key selection criteria include 5 V-tolerant input/output voltage range, propagation delay ≤5.5 ns at 3.3 V, 3-state enable/disable timing, TSSOP48 thermal performance, and IOFF current blocking during power-down.

Technical Context

The device implements four independent 4-bit inverting buffers, each controlled by a dedicated active-low output-enable (nOE). Its CMOS architecture enables rail-to-rail switching with TTL-compatible input thresholds and supports JEDEC-compliant voltage standards across 1.65 V–3.6 V operation.

IOFF circuitry actively disables outputs and blocks backflow current when VCC = 0 V, enabling hot-swap and partial power-down system designs. Input clamping allows safe 5.5 V application to outputs while powered down, and low-inductance multiple VCC/GND pins minimize ground bounce in high-speed bus applications.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, exposed pad not present. Designed for high-density PCB layouts with low thermal resistance (R_θJA ≈ 120 K/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16240ADGGR, the 74LVC16240ADGG,518 provides guaranteed operation up to +125 °C and full IOFF protection-critical for automotive-adjacent industrial systems. Versus 74ALVC16240PW,118, it trades minor speed reduction for essential power-down safety and drop-in compatibility in existing designs.

Availability

74LVC16240ADGG,518 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion modules, automated test equipment signal conditioning, and medical imaging data acquisition buses requiring stable component supply across extended temperature ranges.

Supply support for 74LVC16240ADGG,518 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, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality systems.

The 74LVC logic family targets low-voltage, mixed-signal interfacing applications-designed specifically for energy-efficient, noise-immune, and thermally robust operation in space-constrained embedded systems.

FAQ

Can 74LVC16240ADGG,518 drive 5 V TTL loads directly?

Yes. Its outputs are 5 V tolerant and can source/sink up to 24 mA while maintaining valid VOH/VOL levels across the full 1.2 V–3.6 V supply range. When VCC = 3.3 V, VOH ≥ 2.2 V and VOL ≤ 0.55 V under 24 mA load-meeting TTL input thresholds with margin. No external pull-ups or level shifters are required.

What happens to outputs when VCC is disconnected?

When VCC = 0 V, the IOFF circuit activates automatically, forcing all outputs into high-impedance state and limiting reverse current to ≤±20 μA-even if up to 5.5 V is applied to outputs or inputs. This prevents damage during power sequencing, hot-swap, or brown-out conditions in multi-rail systems.

Is the pinout compatible with older 74LVC16240 variants?

Yes. The 74LVC16240ADGG,518 uses the standard SOT362-1 (TSSOP48) pinout defined in JEDEC MO-153, matching legacy 74LVC16240A devices including pin-for-pin signal assignment, power/ground distribution, and enable/input/output grouping-enabling drop-in replacement without layout changes.

How does the MULTIBYTE flow-through architecture benefit PCB layout?

The flow-through pinout groups related signals-e.g., 1A0–1A3 inputs adjacent to 1Y0–1Y3 outputs and 1OE-allowing straight, short, length-matched traces with minimal layer transitions. This reduces crosstalk, impedance discontinuities, and routing congestion in high-density 16-bit bus implementations, improving signal integrity and easing DFM compliance.