Nexperia USA Inc. 74LVT16373ADL,112

Overview

74LVT16373ADL,112 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, and overvoltage-tolerant inputs up to 5.5 V.

For engineers reviewing the 74LVT16373ADL,112 datasheet, 74LVT16373ADL,112 pinout, 74LVT16373ADL,112 application, or 74LVT16373ADL,112 equivalent, key selection criteria include latch transparency timing, bus-hold input functionality, TSSOP48 thermal performance, and compatibility with mixed-voltage 3.3 V/5 V systems.

Technical Context

The device implements two independent 8-bit transparent latches using BiCMOS logic, enabling simultaneous or segmented data capture. Each latch section has dedicated LE and OE pins, allowing selective storage and tri-state control without affecting the other half.

Bus-hold circuitry actively maintains unused input states without external pull-ups, while IOFF protection ensures low leakage (<100 μA) during partial power-down. The latch operates across 2.7 V–3.6 V supply, with propagation delays as low as 0.5 ns (tPLH/tPHL) at 3.3 V and setup/hold times of 1.5 ns/1.0 ns respectively.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch - optimized for high-density routing and thermal dissipation in space-constrained industrial modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16373A and 74ALVCH16373, the 74LVT16373ADL,112 uniquely combines 5.5 V input tolerance, ±64 mA drive, and integrated bus-hold - making it the only option for ruggedized, mixed-voltage industrial backplane latching without added components.

Availability

74LVT16373ADL,112 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, telecom line card buffering, and automated test equipment requiring stable component supply across extended temperature and mixed-voltage conditions.

Supply support for 74LVT16373ADL,112 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-performance, reliable standard logic and discrete devices for industrial, automotive, and computing markets.

The 74LVT series targets high-speed, low-power bus interface applications in harsh environments, emphasizing robustness, mixed-voltage interoperability, and long-term supply stability.

FAQ

Can 74LVT16373ADL,112 operate with a 2.5 V supply?

No. The device is specified for 2.7 V minimum supply voltage per JEDEC JESD8C. Operation below 2.7 V violates recommended operating conditions and may cause unreliable latch behavior, increased propagation delay, or failure to meet timing specifications. Use SN74LVC16373A for true 2.5 V compatibility.

Does 74LVT16373ADL,112 support hot-swap in powered backplanes?

Yes. Its IOFF circuitry prevents current backflow when VCC is off but I/O pins remain active, and bus-hold inputs maintain defined logic states during insertion. Combined with HBM >2000 V ESD rating, this enables safe live insertion into 5 V or 3.3 V backplanes without system interruption.

What is the maximum capacitive load the outputs can drive reliably?

The outputs are characterized up to 50 pF load capacitance per pin (per test circuit Fig. 8). With ±64 mA drive strength and 3.9 ns max tPLH/tPHL at 3.3 V, the device reliably drives 50 pF loads at ≥200 MHz toggle rates. For >50 pF, derate timing margins and verify signal integrity with IBIS simulation.

How does bus-hold functionality interact with externally pulled inputs?

Bus-hold current (±75 μA to ±135 μA) dominates weak external pulls (<10 kΩ). If an external resistor pulls stronger than bus-hold (e.g., 1 kΩ to VCC), the external bias wins. For predictable behavior, avoid conflicting external pulls - use bus-hold alone or disable it via design if external termination is required.