Nexperia USA Inc. 74ALVC16244DGG,512

Overview

74ALVC16244DGG,512 from Nexperia is a 16-bit CMOS buffer/line driver with 3-state outputs, designed for voltage-level translation and bus isolation in 1.2 V to 3.6 V systems. It features four independent output-enable inputs (1OE–4OE), each controlling four outputs, supports IOFF partial power-down protection, and delivers ±24 mA drive at 3.0 V. It is used in industrial control backplanes and memory address/data bus buffering.

For engineers reviewing the 74ALVC16244DGG,512 datasheet, 74ALVC16244DGG,512 pinout, 74ALVC16244DGG,512 application, or 74ALVC16244DGG,512 equivalent, key selection criteria include 3-state timing (tpd ≤ 3.0 ns at 3.3 V), overvoltage-tolerant 5.5 V inputs, TSSOP48 thermal and noise performance, and bus hold absence (vs. ALVCH variant).

Technical Context

This device implements a quad 4-bit non-inverting buffer architecture with independent active-low output enables. Each of the four logic groups (1A–1Y, 2A–2Y, etc.) operates autonomously, enabling flexible partitioning into 4-bit, 8-bit, or full 16-bit configurations without inter-group signal coupling.

The IOFF circuit actively disables outputs during power-down to block backflow current, while input structures tolerate up to 5.5 V regardless of VCC (1.2–3.6 V). No bus hold circuitry is present-unlike the 74ALVCH16244-requiring external termination for floating inputs.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, exposed pad not present. Designed for high-density PCB layouts with low inductance via multiple VCC/GND pins (4× VCC, 8× GND).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74ALVCH16244DGG,512, this ALVC variant trades bus hold for lower static current and reduced input leakage; compared with SN74LVC16244ADGGR, it offers finer-grained output control and JEDEC-compliant multi-voltage support but requires layout rework.

Availability

74ALVC16244DGG,512 is available at Aetrix Electronics and suitable for industrial PLC backplanes, memory address bus isolation, and FPGA I/O expansion requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 74ALVC16244DGG,512 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 essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74ALVC logic family targets low-voltage, high-speed digital interfacing in space-constrained applications, emphasizing robustness across mixed-supply environments and compatibility with JEDEC standards for multi-voltage system integration.

FAQ

Does 74ALVC16244DGG,512 support 1.8 V operation?

Yes. The device is fully specified from 1.2 V to 3.6 V, including 1.8 V operation. At VCC = 1.8 V, it delivers typical propagation delay of 2.8 ns (CL = 30 pF) and supports VIH ≥ 0.9 V and VIL ≤ 0.2 × VCC, meeting standard 1.8 V logic thresholds.

Can 74ALVC16244DGG,512 be used with 5 V inputs?

Yes. All data and control inputs tolerate up to 5.5 V regardless of VCC level, enabling direct connection to 5 V TTL or CMOS outputs without level-shifting circuitry - a key feature for legacy system upgrades.

What is the difference between 74ALVC16244DGG and 74ALVCH16244DGG?

The 'H' variant includes bus hold circuitry on all data inputs to maintain valid logic states when un-driven, eliminating external pull resistors. The ALVC version lacks bus hold, offering lower input leakage (5 μA vs. 750 μA at 3.3 V) and reduced ICC in static conditions.

Is thermal performance documented for TSSOP48 package?

Yes. The datasheet specifies total power dissipation (Ptot) of 500 mW at Tamb = −40 °C to +85 °C. With four VCC and eight GND pins, the TSSOP48 package minimizes thermal resistance and ground bounce, supporting continuous 16-bit switching at 85 °C ambient.