Nexperia USA Inc. 74ALVCH162244DGG,5

Overview

74ALVCH162244DGG,5 from Nexperia is a 16-bit CMOS buffer/line driver with integrated 30 Ω termination resistors, bus hold inputs, and four independent 3-state output enables (1OE–4OE). It operates from 1.2 V to 3.6 V, supports partial power-down via IOFF, and delivers propagation delay as low as 2.7 ns at 3.3 V - enabling high-speed parallel bus interfacing in industrial control backplanes.

For engineers reviewing the 74ALVCH162244DGG,5 datasheet, 74ALVCH162244DGG,5 pinout, 74ALVCH162244DGG,5 application, or 74ALVCH162244DGG,5 equivalent, this device is selected for its guaranteed bus hold stability, JEDEC-compliant voltage thresholds (JESD8-7/8-5/8C), and TSSOP48 package compatibility with dense PCB layouts requiring low-noise signal integrity.

Technical Context

This device implements a quad 4-bit flow-through architecture with independent enable control per 4-bit group, allowing flexible partitioning as one 16-bit, two 8-bit, or four 4-bit buffers. Its IOFF circuitry actively disables outputs during power-down to prevent damaging backflow current.

Each input features bus hold circuitry (IBHL/IBHH up to ±175 μA) eliminating external pull-ups, while integrated 30 Ω series termination resistors reduce signal reflections on transmission lines - critical for maintaining signal integrity at >100 MHz data rates on FR-4 PCBs.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch - optimized for automated SMT placement and thermal dissipation in compact industrial modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit buffer/line driver applications.

Compared with SN74ALVTH162244GR and 74LVC162244ADGG,118, the 74ALVCH162244DGG,5 uniquely combines 1.2 V operation, integrated termination, bus hold, and IOFF - making it optimal for space-constrained, multi-voltage, hot-pluggable industrial systems where component count and power sequencing robustness are critical.

Availability

74ALVCH162244DGG,5 is available at Aetrix Electronics and suitable for industrial backplane interfaces, automated test equipment data buses, medical imaging data links, and communications baseband processing requiring stable component supply across extended temperature ranges and mixed-voltage designs.

Supply support for 74ALVCH162244DGG,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, reliable logic, discrete, and MOSFET solutions - founded in 2017 as a spin-off from NXP, now serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

This device belongs to Nexperia's ALVCH advanced low-voltage CMOS logic family, engineered specifically for high-speed, low-power, multi-voltage parallel bus interfacing in industrial and test equipment where signal integrity, bus stability, and power sequencing resilience are mandatory.

FAQ

What is the purpose of the integrated 30 Ω termination resistor?

The 30 Ω series termination resistor is placed directly at each output pin to match typical PCB trace impedances (50–75 Ω) and suppress signal reflections. This reduces overshoot, undershoot, and ringing on high-speed parallel buses - eliminating the need for 16 discrete surface-mount resistors and saving significant PCB area and assembly cost.

How does the bus hold feature function without external components?

Each input incorporates a weak feedback circuit that latches the last valid logic state (HIGH or LOW) when the driving source is inactive or disconnected. With bus hold currents ranging from ±75 μA to ±175 μA, it maintains stable logic levels during hot-plug events, reset sequences, or floating bus conditions - removing the need for external pull-up or pull-down resistors.

Can 74ALVCH162244DGG,5 be used in partial power-down systems?

Yes - its IOFF circuitry automatically disables all outputs when VCC drops below threshold, preventing destructive backflow current from powered downstream circuits into the unpowered IC. This meets JEDEC JESD78 Class II Level B latch-up immunity (>100 mA) and is essential for hot-swap backplane and modular system architectures.

What is the significance of MULTIBYTE™ flow-through pinout?

The MULTIBYTE™ architecture arranges inputs and corresponding outputs in adjacent pin pairs (e.g., 1A0/1Y0, 1A1/1Y1) across the package - enabling straight-line PCB routing with minimal trace length and crosstalk. This reduces signal skew, simplifies layout, and improves timing margin in high-speed parallel interfaces such as memory expansion or FPGA I/O expansion.