Nexperia USA Inc. 74LVCH16373ADGG-QJ

Overview

74LVCH16373ADGG-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 V-tolerant I/O, bus hold on data inputs, IOFF partial power-down support, and AEC-Q100 Grade 1 qualification for automotive use at -40 °C to +125 °C.

For engineers reviewing the 74LVCH16373ADGG-QJ datasheet, 74LVCH16373ADGG-QJ pinout, 74LVCH16373ADGG-QJ application, or 74LVCH16373ADGG-QJ equivalent, this device serves as a level-translating, noise-immune latching interface in mixed-voltage automotive control modules, ADAS sensor hubs, and infotainment domain controllers requiring high-reliability data capture and bus isolation.

Technical Context

This device implements two independent 8-bit transparent latch sections, each with Schmitt-trigger inputs for robust timing against slow-rising signals and bus-hold circuitry eliminating external pull-ups on all 16 data inputs. Latch transparency is controlled by active-HIGH LE pins, while 3-state outputs are managed by active-LOW OE pins - enabling precise timing control of data capture and bus release.

The IOFF feature disables outputs during power-down, blocking backflow current when VCC = 0 V and inputs remain at 5.5 V, satisfying automotive partial-power-down requirements. Overvoltage tolerance up to 5.5 V on all I/O pins allows direct interfacing with both 3.3 V and 5 V logic families without external level shifters.

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 automotive PCB layouts with low thermal resistance and minimal board space.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC16373ADGG-Q100, the 74LVCH16373ADGG-QJ adds bus hold for reduced BOM and improved floating-input reliability; versus SN74LVCH16373AQPWRQ1, it offers tighter IOFF leakage and faster disable timing - critical for low-power automotive gateways.

Availability

74LVCH16373ADGG-QJ is available at Aetrix Electronics and suitable for automotive body control modules, ADAS sensor interface hubs, infotainment domain controllers, and electric powertrain gateways requiring stable component supply across extended temperature ranges and strict AEC-Q100 compliance.

Supply support for 74LVCH16373ADGG-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 delivering high-performance, high-reliability logic, discrete, and MOSFET solutions with deep automotive qualification expertise and scalable manufacturing capacity.

This device belongs to Nexperia's automotive-qualified 74LVCH logic family, designed specifically for robust, mixed-voltage data latching in harsh automotive environments where signal integrity, power sequencing safety, and long-term reliability are non-negotiable.

FAQ

Does 74LVCH16373ADGG-QJ support true 5 V logic-level outputs?

No - its outputs are 5 V tolerant but operate at VCC voltage (1.2–3.6 V). When VCC = 3.3 V, VOH ≈ 2.2 V min (at -24 mA), sufficient to drive 3.3 V CMOS inputs; the 5 V tolerance applies only to input voltage handling, not output swing.

Can 1LE and 2LE be tied together for single 16-bit latch operation?

Yes - connecting 1LE and 2LE enables simultaneous latching of all 16 bits. However, doing so forfeits independent control of the two 8-bit sections and eliminates the ability to stagger capture timing or isolate bus segments.

What is the maximum clock/data frequency supported by this latch?

This is not a clocked register but a transparent latch - it has no internal clock. Its usable data rate depends on propagation delay (as low as 1.0 ns) and setup/hold times (2.0 ns su / 0.9 ns h at 3.6 V), supporting effective data rates up to ~300 MHz in tightly controlled layouts.

Is bus hold active on control inputs like 1OE and 1LE?

No - bus hold is implemented only on the 16 data inputs (1D0–1D7 and 2D0–2D7), per datasheet Section 9. Control inputs (OE, LE) lack bus hold and must be actively driven or externally terminated if left unused.