Nexperia USA Inc. 74ALVC373PW,112

Overview

74ALVC373PW,112 from Nexperia is an octal D-type transparent latch with 3-state outputs, used for data latching and bus isolation in digital logic systems. It operates from 1.65 V to 3.6 V, features latch enable (LE) and output enable (OE) controls, supports -40 °C to +125 °C operation, and includes IOFF circuitry for partial power-down protection in mixed-voltage systems.

For engineers reviewing the 74ALVC373PW,112 datasheet, 74ALVC373PW,112 pinout, 74ALVC373PW,112 application, or 74ALVC373PW,112 equivalent, key selection criteria include 3-state bus driving capability, Schmitt-trigger input tolerance for slow-edge signals, IOFF-enabled power-down isolation, and TSSOP20 package compatibility with high-density PCB layouts.

Technical Context

The device implements eight independent D-type latches with transparent mode when LE is HIGH and edge-triggered capture on LE HIGH-to-LOW transition. Each latch output drives a 3-state buffer controlled separately by OE (active LOW), enabling bidirectional bus control without affecting internal latch states.

Schmitt-trigger inputs ensure robust noise immunity against slow-rising/falling signals, while the IOFF circuit disables outputs and blocks backflow current when VCC = 0 V - critical for hot-swap and partial-power-down architectures in industrial and embedded controllers.

Key Specifications

Pinout & Package

TSSOP20 package (SOT360-1): 4.4 mm body width, 0.65 mm pitch, 20-terminal surface-mount plastic thin shrink small outline package optimized for thermal performance and board space efficiency.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal transparent latch applications.

Compared with SN74LVC373APWR and 74LVC373PW,118, the 74ALVC373PW,112 uniquely combines IOFF-enabled power-down safety, extended temperature operation, and tighter propagation delay consistency - making it the sole choice for automotive and industrial systems requiring guaranteed bus isolation during power transitions.

Availability

74ALVC373PW,112 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, test equipment digital pattern generation, and medical infusion pump controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVC373PW,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-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74ALVC series targets advanced low-voltage digital interfacing, delivering enhanced speed-power trade-offs and robustness for mixed-signal systems operating across multiple supply rails.

FAQ

Does 74ALVC373PW,112 support hot-swap insertion?

Yes. Its IOFF circuitry actively disables outputs and blocks backflow current when VCC = 0 V, enabling safe insertion into live backplanes or powered subsystems. This feature complies with JEDEC JESD78 Class II.A latch-up immunity (>250 mA) and is validated for partial power-down operation per datasheet Section 1.

Can 74ALVC373PW,112 interface directly with 5 V TTL logic?

No. While inputs tolerate up to 3.6 V, the device operates only from 1.65 V to 3.6 V and cannot drive 5 V TTL-compatible logic levels. For 5 V interface, use a level translator such as the NTS0102 or a discrete resistor network with appropriate current limiting.

What is the minimum pulse width required on LE for reliable latching?

The minimum LE HIGH pulse width is 3.3 ns at VCC = 3.0–3.6 V (Table 7). This ensures sufficient time for internal metastability resolution and guarantees correct data capture from D inputs into latches without race conditions.

Is the TSSOP20 package RoHS-compliant and lead-free?

Yes. The SOT360-1 package used for 74ALVC373PW,112 is fully RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and Nexperia's environmental specifications per datasheet revision 4 (July 2023).