Nexperia USA Inc. 74ALVC16244DGG,518

Overview

74ALVC16244DGG,518 from Nexperia is a 16-bit CMOS buffer/line driver with 3-state outputs, designed for bus interface and signal isolation in 2.5 V / 3.3 V digital systems. It features four independent output-enable inputs (1OE–4OE), supports partial power-down via IOFF circuitry, tolerates 5.5 V inputs, and delivers ±24 mA drive at 3.0 V - enabling direct TTL interfacing in industrial control backplanes.

For engineers reviewing the 74ALVC16244DGG,518 datasheet, 74ALVC16244DGG,518 pinout, 74ALVC16244DGG,518 application, or 74ALVC16244DGG,518 equivalent, key selection criteria include its 1.2 V to 3.6 V supply range, TSSOP48 package footprint, 3.0 ns max propagation delay at 3.3 V, IOFF-enabled hot-swap capability, and bus-hold omission (vs. ALVCH variant).

Technical Context

This device implements four independent 4-bit non-inverting buffers, each controlled by a dedicated active-low output enable (1OE–4OE). Its IOFF circuitry disables all outputs during power-down, blocking backflow current even when input voltages exceed VCC - critical for mixed-voltage system hot-plug operation.

Unlike the 74ALVCH16244 variant, this part lacks bus-hold circuitry on data inputs, requiring external pull-up/down resistors for unused pins. Input voltage tolerance extends to 5.5 V, enabling safe interfacing with 5 V logic while powered from 2.5 V or 3.3 V rails.

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 - compatible with standard surface-mount reflow processes and high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74ALVCH16244DGG,518, this part trades bus-hold convenience for marginally lower input leakage and identical core performance; versus SN74LVC16244ADGGR, it adds critical IOFF and 5.5 V tolerance at no cost in speed or drive - making it superior for industrial hot-swap and legacy interface integration.

Availability

74ALVC16244DGG,518 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA I/O expansion, automated test equipment fixtures, and embedded controller bus isolation requiring stable component supply and long-term lifecycle support.

Supply support for 74ALVC16244DGG,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, analog, and MOSFET solutions for industrial, automotive, and computing markets.

This device belongs to the ALVC (Advanced Low-Voltage CMOS) logic family, engineered for low-power, high-speed bus interface applications in mixed-voltage embedded systems where robustness, noise immunity, and hot-swap safety are mandatory.

FAQ

Does 74ALVC16244DGG,518 support hot-swap operation?

Yes - its IOFF circuitry actively disables outputs and blocks current flow when VCC is 0 V, preventing damaging backfeed during live insertion or removal in backplane and modular systems. This is confirmed in Section 1 and Table 4 of the datasheet under "IOFF circuitry provides partial Power-down mode operation" and limiting values for VI and VO.

What is the maximum clock/data rate supported by this buffer?

At 3.3 V supply and 50 pF load, the maximum propagation delay is 3.0 ns (tpd), supporting reliable operation up to ~160 MHz for synchronous bus applications. The 10 ns/V input transition rate limit (Δt/ΔV) further constrains usable edge rates - verified in Table 5, Recommended Operating Conditions.

Can this part replace 74ALVCH16244DGG,518 in existing designs?

Yes, with design review: both share identical pinout, timing, and drive specs, but 74ALVC16244 lacks bus-hold. If unused inputs are externally terminated or never float, substitution is drop-in; if inputs may float, add 10–100 kΩ pull resistors to avoid undefined logic states.

Is 74ALVC16244DGG,518 qualified for automotive applications?

No - the datasheet explicitly states "Non-automotive qualified products" in Section 14 and confirms no AEC-Q100 qualification. It is rated for -40 °C to +85 °C industrial temperature range only, and Nexperia disclaims liability for automotive use per legal terms on page 12.