Nexperia USA Inc. 74LVC16373ADGG-Q1J

Overview

74LVC16373ADGG-Q1J from Nexperia is a 16-bit D-type transparent latch with dual 8-bit latch enable (1LE/2LE) and output enable (1OE/2OE) controls, 5 V tolerant I/O, 3-state outputs, and AEC-Q100 Grade 1 automotive qualification. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation between 3.3 V and 5 V systems, and features bus hold on data inputs. Used in automotive body control modules for isolating and latching sensor or switch matrix signals before ADC sampling.

For engineers reviewing the 74LVC16373ADGG-Q1J datasheet, 74LVC16373ADGG-Q1J pinout, 74LVC16373ADGG-Q1J application, or 74LVC16373ADGG-Q1J equivalent, this device delivers deterministic transparent/latch timing (tpd ≤ 4.4 ns at 3.3 V), IOFF-enabled partial power-down, Schmitt-trigger inputs for noise immunity, and TSSOP48 packaging compatible with high-density PCB layouts.

Technical Context

This device implements two independent 8-bit transparent latch sections, each with dedicated LE and OE controls-enabling selective latching and tri-state control per byte without cross-section interference. Its IOFF circuitry disables outputs during power-down, preventing backflow current, while bus hold eliminates external pull-ups on unused data inputs.

Schmitt-trigger inputs tolerate slow-rising signals (Δt/ΔV up to 20 ns/V at 1.2 V), and overvoltage tolerance to 5.5 V allows safe interfacing with legacy 5 V logic. The latch behavior follows standard D-type timing: data propagates transparently when nLE = HIGH; on HIGH-to-LOW nLE transition, data is captured and held, with outputs remaining stable until nOE asserts high-impedance.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1): plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch - optimized for automated assembly and thermal performance in space-constrained automotive PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVCH16373ADGG-Q100, the -Q1J variant omits bus hold to reduce quiescent current in always-on modules; versus SN74LVC16373APAG, it provides full automotive qualification, extended temperature margin (+125 °C), and IOFF robustness for power-gated subsystems.

Availability

74LVC16373ADGG-Q1J is available at Aetrix Electronics and suitable for automotive body control modules, instrument cluster interfaces, and LED lighting driver control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC16373ADGG-Q1J 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 automotive-grade quality.

This device belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust signal conditioning and interface bridging in harsh-temperature vehicle subsystems where voltage translation and latch integrity are mission-critical.

FAQ

What is the maximum input voltage the 74LVC16373ADGG-Q1J can tolerate?

The device accepts input voltages up to 5.5 V regardless of VCC level, enabling direct connection to 5 V microcontrollers or sensors without external level shifters. This overvoltage tolerance is guaranteed across the full −40 °C to +125 °C operating range and is validated per AEC-Q100 stress testing protocols.

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

When VCC = 0 V, the IOFF circuit disables all outputs, limiting back-current to ≤±10 μA even if 5.5 V signals remain present on I/O pins. This prevents damage to downstream components and avoids unintended power injection into unpowered sections of the system-a critical safeguard in automotive domain controllers with staggered power sequencing.

Can the 74LVC16373ADGG-Q1J be used as two independent 8-bit latches?

Yes-pins 1LE/1OE control the first 8-bit section (1D0–1D7 → 1Q0–1Q7), while 2LE/2OE manage the second (2D0–2D7 → 2Q0–2Q7). Each section operates independently: one may be transparent while the other holds data, enabling asynchronous capture of two sensor streams without software coordination.

What is the purpose of the Schmitt-trigger inputs on this latch?

Schmitt-trigger inputs provide hysteresis (≥0.3 V at 3.3 V), allowing reliable operation with slow-rising or noisy signals such as mechanical switch closures or LIN bus stubs. This eliminates external RC filtering and prevents metastability during edge detection in automotive switch matrix applications.