Nexperia USA Inc. 74LVCH162373ADGG,5

Overview

74LVCH162373ADGG,5 from Nexperia is a 16-bit D-type transparent latch with integrated 30 Ω series termination resistors, 5 V-tolerant I/O, and dual 8-bit 3-state outputs controlled by independent latch enable (1LE/2LE) and output enable (1OE/2OE) inputs. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation between 3.3 V and 5 V systems, and features bus hold on all data inputs for floating-input immunity. It is used in high-speed address/data latching for industrial microcontroller buses and FPGA I/O expansion.

For engineers reviewing the 74LVCH162373ADGG,5 datasheet, 74LVCH162373ADGG,5 pinout, 74LVCH162373ADGG,5 application, or 74LVCH162373ADGG,5 equivalent, key selection criteria include its 30 Ω on-die termination for signal integrity, -40 °C to +125 °C extended temperature rating, bus hold functionality, IOFF partial power-down support, and TSSOP48 package compatibility with high-density PCB layouts.

Technical Context

This device implements two independent 8-bit transparent latch sections, each with dedicated latch enable (active HIGH) and output enable (active LOW) controls. Data propagates transparently when nLE is HIGH; on HIGH-to-LOW transition, data is latched with setup/hold times as low as 2.0 ns/0.9 ns at 3.3 V.

All inputs feature Schmitt-trigger action and 5.5 V overvoltage tolerance, enabling robust interfacing with TTL, CMOS, and mixed-supply logic. The integrated 30 Ω series resistors reduce transmission-line reflections without requiring external components, while the IOFF circuit disables outputs during power-down to prevent backflow current.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16373ADGGR and 74ALVC162373PW,118, the 74LVCH162373ADGG,5 uniquely combines bus hold, on-die 30 Ω termination, and IOFF in a single TSSOP48 package-making it optimal for space-constrained, mixed-voltage, and hot-swap-capable designs where reliability and layout simplicity are critical.

Availability

74LVCH162373ADGG,5 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVCH162373ADGG,5 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 optimized for efficiency, reliability, and miniaturization in industrial and automotive applications.

The 74LVCH162373ADGG,5 belongs to Nexperia's advanced LVC/LVCH logic family, designed specifically for high-speed, low-power, mixed-voltage system interfacing with integrated signal integrity features.

FAQ

Does the 74LVCH162373ADGG,5 support hot-swap insertion?

Yes. Its IOFF circuitry actively disables outputs when VCC drops to 0 V, preventing back-current flow from live system buses into the unpowered device-a critical requirement for hot-pluggable modules in industrial backplanes and modular test systems.

Can the bus hold function be disabled?

No. Bus hold is permanently enabled on all data inputs (1D0–1D7, 2D0–2D7) and cannot be disabled via control pins. It activates automatically when input voltage falls below VIH or rises above VIL thresholds, providing passive stabilization without external components.

What is the maximum capacitive load this device can drive reliably?

At VCC = 3.3 V, the device maintains ≤6.1 ns propagation delay and <1.5 ns output skew driving up to 50 pF, as verified in the official datasheet test conditions. For loads exceeding 50 pF, derating of timing margins and potential signal integrity degradation should be evaluated.

How does the 30 Ω series termination interact with PCB trace impedance?

The 30 Ω resistor is placed in series with each output driver and is intended to match typical 50–75 Ω PCB microstrip or stripline impedances in conjunction with the driver's intrinsic output impedance (~15–20 Ω), resulting in effective source termination that minimizes reflections on medium-length traces (≤15 cm).