Nexperia USA Inc. 74LVT162373DL,112

Overview

74LVT162373DL,112 from Nexperia is a 3.3 V, 16-bit transparent D-type latch with integrated 30 Ω series output termination resistors and non-inverting 3-state bus-compatible outputs. It functions as two independent 8-bit latches or one unified 16-bit latch, supports 5 V-tolerant inputs/outputs, and operates across –40 °C to +85 °C for memory address drivers and high-speed bus interfaces.

For engineers reviewing the 74LVT162373DL,112 datasheet, 74LVT162373DL,112 pinout, 74LVT162373DL,112 application, or 74LVT162373DL,112 equivalent, key selection criteria include its 30 Ω on-die termination, ±12 mA drive strength, bus-hold inputs eliminating external pull-ups, live insertion capability, and TTL-level compatibility in mixed-voltage systems.

Technical Context

This BiCMOS device implements dual 8-bit transparent latching logic with active-HIGH latch enable (1LE/2LE) and active-LOW output enable (1OE/2OE), enabling independent control of two 8-bit data paths. Its internal architecture integrates 30 Ω series resistance in both HIGH and LOW output states to suppress signal reflections without external components.

The latch supports simultaneous transparent operation (Q follows D when LE = HIGH) and edge-triggered capture (Q holds D value one setup time before LE's HIGH-to-LOW transition). Bus-hold circuitry on all data inputs maintains valid logic states on unused pins, eliminating need for external biasing.

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 PCB layouts with thermal and mechanical reliability in automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16373ADGGR and 74ALVCH162373T, the 74LVT162373DL,112 uniquely combines 5 V-tolerant I/O, built-in 30 Ω termination, and bus-hold functionality-making it optimal for industrial backplanes and legacy-compatible memory subsystems where signal integrity and design simplicity are prioritized over minimal static power.

Availability

74LVT162373DL,112 is available at Aetrix Electronics and suitable for memory address latching, high-speed bus interface, and industrial PLC I/O expansion requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for 74LVT162373DL,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 delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and sustainability in volume production.

The 74LVT family targets high-speed, 3.3 V bus interface applications requiring robust noise immunity, mixed-voltage interoperability, and simplified board design through integrated features like termination and bus-hold.

FAQ

What is the purpose of the 30 Ω series resistance on each output?

The 30 Ω series resistance is integrated into both HIGH and LOW output paths to match typical PCB trace impedance and suppress signal reflections. This eliminates the need for external source termination resistors, reducing component count and improving signal integrity in memory address drivers, clock distribution networks, and high-speed bus receivers without degrading edge rates.

Can 74LVT162373DL,112 be used in a system with 5 V microcontrollers?

Yes - all inputs are 5 V tolerant (VI up to 5.5 V), and outputs drive TTL-compatible levels, enabling direct connection to 5 V controllers without level shifters. The device operates from 2.7 V to 3.6 V VCC, making it ideal for interfacing legacy 5 V logic with modern 3.3 V data paths while maintaining noise margin and timing predictability.

How does bus-hold functionality improve system reliability?

Bus-hold circuitry actively maintains the last valid logic state on unused or unterminated data inputs using ±75 μA to ±135 μA feedback current. This prevents floating inputs from drifting into undefined voltage ranges, which could cause increased power consumption, logic errors, or EMI emissions - especially critical in electrically noisy industrial environments.

Is live insertion supported, and what design considerations apply?

Yes - the 74LVT162373DL,112 supports live insertion and extraction per JEDEC standards. Key requirements include sequencing VCC before applying signals, ensuring OE and LE are held inactive (OE = HIGH, LE = LOW) during hot-plug events, and verifying that the host backplane provides adequate current limiting to avoid latch-up during transient contact bounce.