Nexperia USA Inc. 74ALVC16244DGG,118

Overview

74ALVC16244DGG,118 from Nexperia is a 16-bit CMOS buffer/line driver with 3-state outputs, organized as four independent 4-bit sections each controlled by dedicated active-low output enables (1OE–4OE). It operates across 1.2 V to 3.6 V supply, delivers ±24 mA drive at 3.0 V, supports 5.5 V-tolerant inputs, and implements IOFF partial power-down protection. It is used in bus interface isolation, memory address/data buffering, and level translation between 2.5 V/3.3 V logic domains.

For engineers reviewing the 74ALVC16244DGG,118 datasheet, 74ALVC16244DGG,118 pinout, 74ALVC16244DGG,118 application, or 74ALVC16244DGG,118 equivalent, key selection criteria include supply voltage flexibility (1.2–3.6 V), 3-state timing (tpd ≤ 3.0 ns at 3.3 V), IOFF-enabled system power sequencing, and TSSOP48 package compatibility with high-density PCB layouts.

Technical Context

This device implements a quad-section architecture where each group of four inputs (e.g., 1A0–1A3) drives corresponding outputs (1Y0–1Y3) under control of its own OE signal. All outputs enter high-impedance state when the respective OE is HIGH, enabling bus sharing without contention.

The 74ALVC16244 variant lacks bus hold circuitry; input leakage remains ≤5 μA at 3.6 V, while overvoltage tolerance up to 5.5 V allows safe interfacing with 5 V systems. Propagation delay is specified down to 1.0 ns (typical) at VCC = 3.3 V with 50 pF load, and enable/disable times are tightly controlled (ten/tdis ≤ 4.0 ns max).

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, 1.2 mm max height. Features low-inductance multiple VCC/GND pins to suppress ground bounce and noise in high-speed digital interfaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC16244ADGG,118, the 74ALVC16244DGG,118 adds essential IOFF protection for modern power-gated systems; versus SN74ALVCH16244DGGR, it trades bus-hold for lower static current and tighter input leakage-ideal for deterministic, externally terminated buses.

Availability

74ALVC16244DGG,118 is available at Aetrix Electronics and suitable for memory address buffering, industrial I/O expansion, PCI bus interfacing, and test equipment signal conditioning requiring stable component supply and long-term production continuity.

Supply support for 74ALVC16244DGG,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-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74ALVC logic family targets low-voltage, high-speed digital interface applications demanding robustness, wide supply range, and advanced power management features like IOFF.

FAQ

Does 74ALVC16244DGG,118 support 1.8 V operation?

Yes. The device is fully specified from 1.2 V to 3.6 V, including 1.8 V. At VCC = 1.8 V, VIH is 0.7 × VCC (1.26 V min), VOL is ≤0.30 V at 6 mA, and tpd is ≤5.1 ns (max) with 30 pF load - meeting standard LVCMOS18 timing and voltage thresholds.

Can 74ALVC16244DGG,118 be used with 5 V inputs?

Yes. Its inputs tolerate up to 5.5 V regardless of VCC level, enabling safe interfacing with 5 V TTL or CMOS outputs without level shifters. This applies to all data and enable inputs; however, VCC must remain within 1.2–3.6 V, and outputs swing only to VCC levels.

What is the purpose of the multiple VCC and GND pins?

The four VCC and eight GND pins reduce power/ground loop inductance, minimizing ground bounce and supply noise during fast output transitions. This maintains signal integrity in high-speed, high-fanout applications - especially critical when driving multiple 50 Ω lines simultaneously at >100 MHz edge rates.

How does IOFF protect the device during partial power-down?

When VCC = 0 V, the IOFF circuit disables all outputs and presents high-impedance on both inputs and outputs, preventing destructive back-current flow from live buses into the unpowered IC. This satisfies JESD78 Class II latch-up immunity and enables safe hot-swap and multi-rail sequencing in complex power architectures.