Nexperia USA Inc. 74LVT16373ADGG,512

Overview

74LVT16373ADGG,512 from Nexperia is a 3.3 V 16-bit transparent D-type latch with 3-state outputs, designed for high-speed bus interface and data buffering in industrial control and telecom backplanes. It features dual 8-bit latch enable (1LE/2LE) and output enable (1OE/2OE) controls, ±32 mA/±64 mA drive capability, bus-hold inputs eliminating external pull-ups, and operates across -40 °C to +85 °C.

For engineers reviewing the 74LVT16373ADGG,512 datasheet, 74LVT16373ADGG,512 pinout, 74LVT16373ADGG,512 application, or 74LVT16373ADGG,512 equivalent, key selection criteria include its BiCMOS 3.3 V logic compatibility, 3.9 ns max propagation delay at 3.6 V, overvoltage-tolerant 5.5 V inputs, IOFF power-down mode, and TSSOP48 package footprint for dense PCB layouts.

Technical Context

The device implements two independent 8-bit transparent latches sharing a common 3.3 V supply, each with dedicated latch enable (active HIGH) and output enable (active LOW) pins. Its BiCMOS architecture enables TTL-level input compatibility while delivering rail-to-rail 3-state outputs with asymmetric drive strength (+64 mA sink / –32 mA source).

Latch transparency is controlled synchronously per 8-bit group: when nLE is HIGH, outputs follow D-inputs in real time; on HIGH-to-LOW nLE transition, data is captured and held. nOE asserts high-impedance independently-without affecting latch state-and supports live insertion/extraction via IOFF circuitry during partial power-down.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch - optimized for automated SMT assembly and thermal dissipation in compact board spaces.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16373ADGGR and 74ALVCH16373T, the 74LVT16373ADGG,512 uniquely combines 5.5 V input tolerance, integrated bus-hold, and ±32 mA/±64 mA drive in a single 3.3 V latch-making it optimal for ruggedized industrial and telecom backplane designs where signal integrity and component count reduction are critical.

Availability

74LVT16373ADGG,512 is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom line card buffering, automated test equipment pattern generation, and medical imaging data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVT16373ADGG,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 specializing in high-performance, energy-efficient logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVT series targets high-speed 3.3 V logic interfacing with legacy 5 V systems, emphasizing robustness, low power, and ease of integration in space-constrained industrial and communications equipment.

FAQ

Does the 74LVT16373ADGG,512 support hot-swap operation?

Yes. Its IOFF circuitry ensures that when VCC = 0 V, all I/O pins enter a high-impedance state with ≤±100 μA leakage, preventing back-driving of live buses during insertion or extraction. This meets JEDEC-compliant hot-swap requirements for modular backplane systems.

Can the 74LVT16373ADGG,512 interface directly with 5 V CMOS logic?

Yes. Its inputs tolerate up to 5.5 V regardless of VCC level, allowing direct connection to 5 V CMOS outputs without level shifters. However, outputs swing only to VCC (max 3.6 V), so 5 V receivers must accept 3.3 V logic-high thresholds (≥2.0 V).

What is the minimum pulse width required on LE inputs?

The minimum HIGH pulse width on 1LE or 2LE is 1.5 ns at VCC = 3.0–3.6 V (typical), with 0.5 ns guaranteed minimum. This allows reliable latching even in high-frequency strobe applications such as burst-mode memory access.

How does bus-hold functionality affect unused input pins?

Bus-hold maintains the last-valid logic state on any unused 1Dn/2Dn pin with ±75 μA to ±135 μA current, eliminating external pull-up/pull-down resistors. This reduces BOM count, PCB area, and potential noise coupling from resistor networks.