Nexperia USA Inc. 74LVC162373ADGG:11

Overview

74LVC162373ADGG:11 from Nexperia is a 16-bit D-type transparent latch with integrated 30 Ω series termination resistors, dual 8-bit latch enable (1LE/2LE) and output enable (1OE/2OE) controls, 5 V tolerant I/O, and operation across 1.2 V to 3.6 V supply. It functions as two independent 8-bit latches or one unified 16-bit latch in high-speed data buffering applications such as memory address/data bus isolation in industrial PLCs.

For engineers reviewing the 74LVC162373ADGG:11 datasheet, 74LVC162373ADGG:11 pinout, 74LVC162373ADGG:11 application, or 74LVC162373ADGG:11 equivalent, this device supports mixed-voltage translation (3.3 V ↔ 5 V), features Schmitt-trigger inputs for noise immunity, includes IOFF partial power-down protection, and delivers sub-8 ns propagation delay at 3.3 V - critical for timing-critical bus hold and latch synchronization tasks.

Technical Context

This latch implements dual independent 8-bit transparent sections, each with dedicated active-HIGH latch enable (nLE) and active-LOW output enable (nOE). When nLE is HIGH, outputs follow inputs in real time; when nLE transitions LOW, data is captured and held. Output enable operates independently, forcing high-impedance states without affecting internal latch state.

Each input incorporates Schmitt-trigger action for robust handling of slow-rising signals, and all I/O pins tolerate up to 5.5 V regardless of VCC level (1.2–3.6 V). The IOFF circuit ensures zero backflow current during partial power-down, while built-in 30 Ω series resistors suppress signal reflections on PCB traces - eliminating need for external termination in high-speed parallel interfaces.

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 low thermal resistance and minimal lead inductance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16373ADGGR, the 74LVC162373ADGG:11 reduces design risk via built-in termination and improves noise immunity; versus 74LVCH162373ADGG, it trades bus-hold functionality for lower static current and reduced input capacitance - favoring high-frequency clock distribution over input stability.

Availability

74LVC162373ADGG:11 is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, automotive body control modules, and medical imaging data capture systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC162373ADGG:11 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 miniaturization for industrial, automotive, and computing markets.

The 74LVC162373ADGG:11 belongs to Nexperia's LVC advanced logic family, engineered for low-voltage operation with 5 V tolerance and robust signal integrity - targeting high-speed digital interface consolidation in space-constrained embedded systems.

FAQ

Can 74LVC162373ADGG:11 operate with VCC = 1.2 V while interfacing to 5 V inputs?

Yes. The device is fully specified for 1.2 V to 3.6 V VCC operation and supports 5 V tolerant inputs up to 5.5 V, enabling direct connection to legacy 5 V peripherals without level-shifting circuitry. Input thresholds scale with VCC, and Schmitt-trigger action ensures reliable switching even with slow-rising 5 V signals.

What is the maximum clock frequency supported in transparent mode?

The device does not use a clock; it operates in transparent (level-sensitive) mode. With t_pd ≤ 5.9 ns at VCC = 3.3 V, it supports reliable data throughput up to ~100 MHz for burst-mode bus transfers, limited only by external setup/hold timing constraints and PCB trace length.

How does the IOFF feature protect during partial power-down?

When VCC = 0 V, the IOFF circuit disables all outputs and isolates I/O pins, limiting leakage current to ±10 μA maximum. This prevents back-current flow from live 5 V buses into unpowered sections of the system - satisfying IEC 61000-4-2 and automotive power sequencing requirements.

Are the 30 Ω series resistors placed on inputs, outputs, or both?

The 30 Ω resistors are integrated exclusively on all 16 output pins (1Q0–1Q7 and 2Q0–2Q7), providing source-series termination for driving transmission lines. Inputs remain low-capacitance (5 pF typical) with Schmitt-trigger receivers - no series resistance is applied to inputs.