Nexperia USA Inc. 74ALVCH16841DGG,11

Overview

74ALVCH16841DGG,11 from Nexperia is a 20-bit bus interface D-type latch with dual 10-bit sections, 3-state non-inverting outputs, active bus hold on all data inputs, and independent latch enable (nLE) and output enable (nOE) controls. It operates from 1.2 V to 3.6 V, delivers ±24 mA drive at 3.0 V, and supports industrial temperature range (−40 °C to +85 °C). Used in high-density data bus buffering and level translation between mixed-voltage subsystems.

For engineers reviewing the 74ALVCH16841DGG,11 datasheet, 74ALVCH16841DGG,11 pinout, 74ALVCH16841DGG,11 application, or 74ALVCH16841DGG,11 equivalent, key selection criteria include bus hold functionality eliminating external resistors, TSSOP56 package pin compatibility with MULTIBYTE™ flow-through architecture, propagation delay ≤3.9 ns at 3.3 V, and JEDEC-compliant voltage thresholds for TTL interfacing.

Technical Context

This device implements two independent 10-bit transparent D-type latches, each with dedicated data inputs (1D0–1D9, 2D0–2D9), latch enable (1LE, 2LE), and output enable (1OE, 2OE) control. Latch operation is edge-independent: data passes through when nLE is HIGH; outputs enter high-impedance state when nOE is HIGH without affecting internal latch state.

Each input features integrated bus hold circuitry (IBHL/IBHH ≥75 μA at 3.0 V), maintaining valid logic levels on floating inputs without external biasing. The TSSOP56 package includes eight ground pins and four VCC pins to minimize noise and ground bounce, supporting reliable operation in dense PCB layouts with 50 Ω transmission line drive capability.

Key Specifications

Pinout & Package

TSSOP56 (SOT364-1) package: plastic thin shrink small outline, 56-pin, 6.1 mm body width, 0.5 mm pitch, 1.2 mm max height. Features 8 GND and 4 VCC pins for low-inductance power distribution.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 20-bit bus latch applications.

Compared with SN74ALVCH16841DGGR, the 74ALVCH16841DGG,11 offers identical functionality but differs in packaging and reel format; versus 74LVC16373ADGG,118, it adds bus hold and extends low-voltage operation to 1.2 V-critical for ultra-low-power or mixed-voltage system integration.

Availability

74ALVCH16841DGG,11 is available at Aetrix Electronics and suitable for industrial PLC backplanes, memory expansion subsystems, automated test equipment interfaces, and communications baseband processing requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 74ALVCH16841DGG,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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous quality standards.

The 74ALVCH16841 belongs to Nexperia's advanced ALVC logic family, engineered for low-power, high-speed bus interface applications in space-constrained industrial and communications systems where signal integrity and voltage flexibility are critical.

FAQ

Does the 74ALVCH16841DGG,11 require external pull-up or pull-down resistors on its data inputs?

No. All 20 data inputs feature integrated bus hold circuitry that actively maintains a valid logic level when floating, eliminating the need for external biasing resistors. This reduces BOM count, PCB area, and potential noise sources in high-density designs.

Can the two 10-bit sections operate at different supply voltages?

No. The device has a single VCC pin set (four distributed VCC pins) and is designed for operation with one supply voltage across the entire IC. Mixed-voltage operation between sections is not supported; level translation must be handled externally if interfacing disparate voltage domains.

What is the maximum guaranteed propagation delay at 2.5 V supply?

At VCC = 2.3 V to 2.7 V, the maximum propagation delay (nDn to nQn) is 5.0 ns. This value is specified over the full industrial temperature range (−40 °C to +85 °C) and applies to all 20 channels under recommended operating conditions with 30 pF load.

How does the latch enable (nLE) interact with the output enable (nOE) control?

nLE controls data transparency into the latch register (HIGH = pass-through, LOW = hold), while nOE controls output driver state (LOW = enabled, HIGH = high-impedance). These functions are fully independent: changing nOE does not affect stored data or latch state, enabling flexible bus arbitration and power sequencing.