Nexperia USA Inc. 74LVCH16373ADGV-QJ

Overview

74LVCH16373ADGV-QJ from Nexperia is a 16-bit D-type transparent latch with dual 8-bit latch enable (1LE/2LE) and output enable (1OE/2OE) controls, 5.5 V tolerant I/O, bus hold on data inputs, IOFF partial power-down protection, and Schmitt-trigger inputs. It operates from 1.2 V to 3.6 V supply and supports mixed-voltage translation between 3.3 V and 5 V systems. Used in automotive body control modules for signal buffering and level-shifting of sensor or actuator interface buses.

For engineers reviewing the 74LVCH16373ADGV-QJ datasheet, 74LVCH16373ADGV-QJ pinout, 74LVCH16373ADGV-QJ application, or 74LVCH16373ADGV-QJ equivalent, this device delivers deterministic transparent/latched behavior, high-noise-immunity input thresholds, guaranteed 3-state isolation during power sequencing, and AEC-Q100 Grade 1 qualification for under-hood electronics.

Technical Context

This device implements two independent 8-bit transparent latches sharing a common 48-pin TVSOP package. Each latch section features separate LE and OE controls, enabling selective capture and output gating without cross-talk. The bus hold circuit sustains logic states on unused D-inputs without external pull resistors.

Schmitt-trigger inputs tolerate slow-rising signals (e.g., from mechanical switches or long PCB traces), while the IOFF circuit disables outputs and blocks backflow current when VCC = 0 V - critical for hot-swap and multi-rail power sequencing in automotive ECUs.

Key Specifications

Pinout & Package

74LVCH16373ADGV-QJ uses the SOT480-1 (TVSOP48) package: 48-lead plastic thin shrink small outline package, 4.4 mm body width, 0.4 mm lead pitch, and exposed pad not present. Pin numbering follows standard counter-clockwise layout starting from pin 1 (1OE) at top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC16373ADGV-Q100 and SN74LVCH16373AQPWRQ1, the 74LVCH16373ADGV-QJ uniquely combines bus hold, lowest typical propagation delay (2.4 ns), and optimized thermal pad-less TVSOP footprint - making it optimal for space-constrained, noise-prone automotive modules requiring zero-external-bias reliability.

Availability

74LVCH16373ADGV-QJ is available at Aetrix Electronics and suitable for automotive body control, industrial PLC I/O expansion, HVAC control units, and ADAS camera interface designs requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for 74LVCH16373ADGV-QJ 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, with leadership in automotive-grade components and advanced packaging.

This device belongs to Nexperia's automotive-qualified LVC/LVCH logic family, engineered specifically for robust signal integrity, mixed-voltage interoperability, and seamless integration into safety-critical vehicle subsystems.

FAQ

Does 74LVCH16373ADGV-QJ support hot insertion into a live 5 V bus?

Yes - its 5.5 V tolerant inputs and IOFF circuitry allow safe connection to an active 5 V bus even when VCC is unpowered. The IOFF feature blocks backflow current from the 5 V bus into the unpowered device, preventing damage or system instability during hot-swap events in automotive gateway or infotainment modules.

Can bus hold be disabled to reduce power consumption?

No - bus hold is permanently enabled on all 16 data inputs and cannot be disabled via control pins or configuration. However, its current draw is minimal: ±60 μA typical at VCC = 3.0 V, contributing negligibly to total ICC (max 80 μA). It remains active only when inputs float near switching thresholds.

What is the maximum clock/data rate supported for reliable latching?

The device does not use a clock; it is edge-triggered only on LE transitions. For reliable operation, the minimum LE pulse width is 2.0 ns at VCC = 3.0–3.6 V, and data must be stable for ≥2.0 ns before and ≥0.9 ns after the LE HIGH-to-LOW edge. This supports effective data rates up to ~250 MHz in burst-mode capture applications.

How does Schmitt-trigger input hysteresis improve system robustness?

Schmitt-trigger inputs provide ~0.3 V to 0.5 V hysteresis depending on VCC, rejecting noise spikes and slow-rising signals that could cause false triggering. In automotive applications, this prevents erroneous latch activation from harness-induced ringing or switch contact bounce - ensuring deterministic behavior in door module or seat position sensing circuits.