Nexperia USA Inc. 74LVCH16374ADL,118

Overview

74LVCH16374ADL,118 from Nexperia is a 16-bit edge-triggered D-type flip-flop with dual independent 8-bit sections, 3-state outputs, 5 V-tolerant inputs, and bus hold on data inputs. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage interfacing (3.3 V/5 V), and features IOFF partial power-down protection. Used in high-density data latching and bus isolation in industrial control backplanes.

For engineers reviewing the 74LVCH16374ADL,118 datasheet, 74LVCH16374ADL,118 pinout, 74LVCH16374ADL,118 application, or 74LVCH16374ADL,118 equivalent, this device delivers deterministic edge-triggered storage with sub-7 ns propagation delay at 3.3 V, dual-clock/dual-OE control per 8-bit bank, and robust ESD immunity (HBM >2000 V) for reliable operation in noise-prone embedded systems.

Technical Context

This device implements two independent 8-bit D-type flip-flop banks, each with dedicated clock (1CP/2CP) and output enable (1OE/2OE) inputs. Each bank latches data on the LOW-to-HIGH transition of its respective clock while meeting set-up (1.9 ns min at 3.3 V) and hold (1.5 ns min) timing requirements.

All 32 data inputs (1D0–1D7, 2D0–2D7) include bus hold circuitry (74LVCH variant only), eliminating external pull-ups in floating-bus scenarios. The IOFF circuit disables outputs when VCC = 0 V, preventing backflow current during partial power-down - critical for hot-swap and low-power sequencing applications.

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 I/O density and thermal performance in space-constrained PCBs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit D-type flip-flop applications.

Compared with SN74LVC16374ADGGR, the 74LVCH16374ADL,118 adds bus hold and enhanced ESD protection at no pinout or timing penalty; versus 74ALVCH16374T, it trades peak speed for broader voltage compatibility and drop-in TSSOP48 footprint.

Availability

74LVCH16374ADL,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, memory interface buffers, automated test equipment, and communications baseband processing requiring stable component supply across extended temperature ranges (−40 °C to +125 °C).

Supply support for 74LVCH16374ADL,118 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 industrial and automotive markets.

This device belongs to Nexperia's 74LVCH advanced low-voltage CMOS logic family, designed specifically for robust mixed-voltage interfacing, partial power-down resilience, and high-noise-immunity operation in demanding embedded systems.

FAQ

Does 74LVCH16374ADL,118 support 1.2 V operation?

Yes - it is fully specified from 1.2 V to 3.6 V supply voltage. At 1.2 V, propagation delay is 14 ns (typical), and static parameters including VIH/VIL thresholds scale proportionally. Operation below 1.2 V is not guaranteed and may violate timing or logic thresholds.

Can 74LVCH16374ADL,118 be used as a level shifter between 3.3 V and 5 V systems?

Yes - its 5.5 V-tolerant inputs accept 5 V signals while operating from a 3.3 V supply, and its outputs swing rail-to-rail (0 V to 3.3 V). No external components are needed for unidirectional 5 V → 3.3 V translation; bidirectional use requires additional circuitry.

What is the function of the IOFF circuit?

The IOFF circuit automatically places all outputs in high-impedance state when VCC = 0 V, blocking reverse current flow from live I/O lines into the powered-down device. This prevents damage during hot-swap, partial power-down, or system sleep modes - confirmed by ±10 μA leakage at VCC = 0 V.

How does bus hold work on the 74LVCH16374ADL,118 data inputs?

Bus hold actively maintains the last-valid logic state on each data input (1D0–1D7, 2D0–2D7) when driven externally. At VCC = 3.0 V, it sources/sinks ±75 μA to hold LOW/HIGH states - sufficient to override typical PCB leakage but not strong enough to conflict with active drivers, eliminating need for external pull resistors.