Nexperia USA Inc. 74ALVT16373DGG,512

Overview

74ALVT16373DGG,512 from Nexperia is a 16-bit transparent D-type latch with independent 3-state outputs, dual latch enables (1LE/2LE) and dual output enables (1OE/2OE), operating across 2.3–3.6 V supply, supporting 5 V I/O tolerance and bus-hold inputs. It functions as two 8-bit latches or one unified 16-bit latch in high-speed data buffering applications for industrial control backplanes and memory interface buses.

For engineers reviewing the 74ALVT16373DGG,512 datasheet, 74ALVT16373DGG,512 pinout, 74ALVT16373DGG,512 application, or 74ALVT16373DGG,512 equivalent, key selection criteria include latch enable timing (tWH ≥ 1.5 ns), 3-state propagation delays (tPZH ≤ 4.0 ns at 3.3 V), bus-hold current specs (IBHL = 75–130 μA), and TSSOP48 thermal performance under -40 °C to +85 °C ambient conditions.

Technical Context

This BiCMOS device implements two independent 8-bit transparent latch sections, each with dedicated active-HIGH latch enable (nLE) and active-LOW output enable (nOE). Latch transparency is maintained while nLE is HIGH; data is captured on the HIGH-to-LOW transition of nLE with set-up/hold times as low as 0.5 ns (tsu(H)) and 0.8 ns (th(H)) at 3.3 V.

The IOFF circuitry ensures partial power-down operation with leakage < ±100 μA when VCC = 0 V, and bus-hold inputs eliminate external pull-ups by maintaining defined logic states on unused D-inputs - critical for hot-swap and unpopulated bus segments in modular systems.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVTH16373GR, the 74ALVT16373DGG,512 provides integrated bus-hold and IOFF for plug-and-play reliability; versus 74LVC16373ADGG,118, it delivers 2.7× stronger drive and guaranteed hot-swap safety - making it optimal for mission-critical industrial interfaces.

Availability

74ALVT16373DGG,512 is available at Aetrix Electronics and suitable for industrial control backplanes, memory-mapped I/O expansion, and hot-swappable module buffering requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVT16373DGG,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 delivering high-performance logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial and automotive markets.

The 74ALVT series targets high-speed, mixed-voltage system interfacing - specifically engineered to bridge legacy 5 V infrastructure with modern low-voltage logic while maintaining robust ESD, latch-up, and thermal performance.

FAQ

Does the 74ALVT16373DGG,512 support hot-plug operation?

Yes - its IOFF circuitry guarantees high-impedance outputs and < ±100 μA leakage when VCC = 0 V, and power-up 3-state prevents bus contention during insertion. Live extraction is further enabled by bus-hold inputs that retain valid logic states without external components, meeting industrial hot-swap requirements.

What is the minimum pulse width required on 1LE/2LE for reliable latching?

The minimum HIGH pulse width (tWH) is 1.5 ns at both 2.5 V and 3.3 V supply voltages, as specified in Table 7. This allows use in high-frequency bus capture applications up to ~400 MHz, provided setup/hold times (e.g., tsu(H) = 0.5 ns at 3.3 V) are met by the driving source.

Can unused D-inputs be left floating?

Yes - bus-hold circuitry actively maintains valid logic levels on all D-inputs (1D0–1D7, 2D0–2D7) without external pull-up or pull-down resistors. At 3 V supply, IBHL is 75–130 μA for LOW hold and IBHH is –75 to –140 μA for HIGH hold, ensuring stable operation even with unterminated traces.

How does the device behave during power-up sequencing?

It features power-up 3-state and power-up reset: outputs remain in high-impedance until VCC reaches valid operating range, and internal latches initialize to a known state. VOL(pu) is guaranteed ≤ 0.55 V at VCC = 3.6 V, preventing false triggering of downstream logic during ramp-up.