Nexperia USA Inc. 74LVT16240ADGG,518

Overview

74LVT16240ADGG,518 from Nexperia is a 3.3 V, 16-bit inverting buffer/driver with four independent 3-state output enable controls (1OE–4OE), designed for high-drive bus interfacing in mixed-voltage systems. It delivers ±64 mA/±32 mA output drive, supports 5 V-tolerant TTL-level inputs/outputs, and incorporates bus-hold circuitry to eliminate external pull-ups. Used in industrial backplane drivers and memory address/data bus isolation.

For engineers reviewing the 74LVT16240ADGG,518 datasheet, 74LVT16240ADGG,518 pinout, 74LVT16240ADGG,518 application, or 74LVT16240ADGG,518 equivalent, this page provides verified functional identity, TSSOP48 pin mapping, bus-hold behavior, propagation delays (1.8 ns typ), and 3.3 V/5 V interface compatibility - all critical for signal integrity validation and mixed-supply system design.

Technical Context

The 74LVT16240ADGG,518 implements four independent 4-bit inverting buffer sections, each controlled by its own active-low output enable (1OE–4OE). Each section drives four outputs (e.g., 1Y0–1Y3) with true inversion logic: when enabled, Yn = NOT(An); when disabled, output enters high-impedance state.

Its BiCMOS architecture enables 3.3 V core operation while maintaining full 5 V input tolerance and 5 V bus-compatible output voltage swing. Bus-hold circuitry on all data inputs (1A0–4A3) actively maintains last-valid logic state without external resistors, reducing BOM count and PCB space in unterminated stubs.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch - optimized for high-density PCB layouts with thermal and mechanical reliability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16240ADGGR and 74ALVCH16240QFG, the 74LVT16240ADGG,518 uniquely combines 5 V tolerance, bus-hold, and ±64 mA drive - making it the only option among the three for robust 3.3 V-to-5 V bus bridging in electrically noisy industrial backplanes.

Availability

74LVT16240ADGG,518 is available at Aetrix Electronics and suitable for industrial backplane drivers, memory address buffering, FPGA I/O expansion, and legacy peripheral bridging requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVT16240ADGG,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 leading semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with a focus on reliability, efficiency, and industrial-grade qualification.

The 74LVT16240ADGG,518 belongs to Nexperia's LVT (Low-Voltage Technology) logic family, engineered for 3.3 V operation with 5 V interface compatibility - targeting industrial control, communications infrastructure, and embedded computing where mixed-supply interoperability is essential.

FAQ

Does the 74LVT16240ADGG,518 support hot-swap insertion?

Yes. It features live insertion/extraction support via power-up 3-state behavior and I_OFF protection, which limits power-off leakage current to ±100 μA when V_CC = 0 V. This prevents bus contention and back-driving during hot-plug operations in modular chassis systems.

Can the 74LVT16240ADGG,518 drive a 50 Ω transmission line directly?

Yes. With a guaranteed –32 mA source and +64 mA sink capability at V_CC = 3.3 V, it can drive a 50 Ω line terminated to 3.3 V (requiring ~66 mA for full swing) or 5 V (requiring ~100 mA) with appropriate series termination. Measured t_PLH/t_PHL remains under 3.2 ns, supporting >200 MHz edge rates.

What is the purpose of the eight GND pins in the TSSOP48 package?

The eight GND pins minimize ground loop inductance and distribute return current across the die, reducing simultaneous switching noise (SSN) and improving signal integrity. Layout guidelines recommend stitching all GND pins to a solid internal ground plane - critical for maintaining <100 ps skew across all 16 outputs in high-speed bus applications.

How does bus-hold functionality affect unused input pins?

Bus-hold circuitry actively maintains the last-valid logic state on each data input (1A0–4A3) with ±75 μA to ±135 μA holding current. This eliminates need for external pull-up/down resistors, prevents metastability during power-up, and avoids floating inputs that could cause excessive ICC or erratic downstream logic behavior.