Nexperia USA Inc. 74ALVCH16374DGG:11

Overview

74ALVCH16374DGG:11 from Nexperia is a 16-bit edge-triggered D-type flip-flop with dual 8-bit sections, bus hold inputs, and 3-state outputs, operating from 1.2 V to 3.6 V supply. It features independent clocks (1CP/2CP) and output enables (1OE/2OE), supports partial power-down via IOFF, and delivers ±24 mA drive at 3.0 V - used in high-density data latching and bus interface circuits in industrial control backplanes.

For engineers reviewing the 74ALVCH16374DGG:11 datasheet, 74ALVCH16374DGG:11 pinout, 74ALVCH16374DGG:11 application, or 74ALVCH16374DGG:11 equivalent, this page provides verified functional architecture, TSSOP48 pin mapping, bus hold behavior, IOFF-enabled power sequencing, and direct TTL-level interfacing capability without level translation.

Technical Context

This device implements two independent 8-bit D-flip-flop banks, each with dedicated clock and 3-state enable, enabling synchronous latching of parallel data streams. Its bus hold circuitry maintains valid logic states on unused or floating inputs without external pull-ups, reducing board-level component count.

The IOFF feature actively disables outputs during partial power-down, blocking backflow current when VCC is inactive - critical for hot-swap and multi-rail system designs. Propagation delay is as low as 1.0 ns at 3.3 V, supporting >200 MHz operation with 30 pF load.

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 industrial PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74ALVTH16374GR and 74LVC16374ADGG, the 74ALVCH16374DGG:11 uniquely combines bus hold, IOFF, and 1.2–3.6 V operation in a single device - eliminating design compromises between robustness, power flexibility, and layout simplicity.

Availability

74ALVCH16374DGG:11 is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom line card interfaces, and memory interface buffers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVCH16374DGG: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 sustainability for industrial, automotive, and consumer markets.

The 74ALVCH series targets high-speed, low-voltage digital interface applications - designed specifically for robust operation in mixed-voltage systems with stringent power sequencing and noise immunity requirements.

FAQ

Does 74ALVCH16374DGG:11 support 1.8 V operation?

Yes - it operates across 1.2 V to 3.6 V, with guaranteed performance at 1.8 V including 125 MHz maximum frequency, 7.7 ns propagation delay, and bus hold functionality. Input thresholds scale with VCC (VIH = 0.7VCC min), ensuring compatibility with 1.8 V logic families.

How does the IOFF feature behave during power-down?

When VCC drops below 0.8 V, the IOFF circuit automatically forces all outputs into high-impedance state regardless of OE pin state - preventing reverse current flow from live bus lines into the unpowered device, satisfying JEDEC JESD78 Class II.A latch-up immunity.

Can both 8-bit sections operate at different clock frequencies?

Yes - 1CP and 2CP are electrically isolated clock inputs; each controls its respective 8-bit bank independently. This allows asynchronous latching of two data streams (e.g., control vs. status) with no timing dependency between banks.

What is the purpose of MULTIBYTE™ pinout architecture?

MULTIBYTE™ places complementary input/output pairs (e.g., 1D0 and 1Q0) on adjacent pins to minimize trace length and skew in parallel bus implementations - reducing signal integrity issues and easing high-speed PCB layout for 16-bit data paths.