Nexperia USA Inc. 74ALVCH162244DGG

Overview

74ALVCH162244DGG 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 datasheet, 74ALVCH162244DGG pinout, 74ALVCH162244DGG application, or 74ALVCH162244DGG equivalent, this device is selected for its dual-role capability (as one 16-bit, two 8-bit, or four 4-bit buffers), guaranteed −40 °C to +85 °C operation, and integrated termination eliminating external resistors on dense PCB layouts.

Technical Context

This device implements a flow-through MULTIBYTE™ pin architecture across 48-pin TSSOP packaging, with dedicated VCC/GND pairs per functional quadrant to suppress ground bounce and supply noise. Each of the four 4-bit output groups is independently controlled by active-low OE signals, enabling selective bus isolation without affecting other channels.

The integrated 30 Ω series termination resistors match typical PCB trace impedances, reducing signal reflections on high-speed parallel buses. Bus hold circuitry maintains valid logic states on un-driven inputs, eliminating external pull-up/down components while meeting JESD78 Class II latch-up immunity (>100 mA).

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch - optimized for high-density PCB routing 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 applications.

Compared with SN74ALVTH162244DGGR and 74LVC162244ADGG, the 74ALVCH162244DGG uniquely combines integrated termination, bus hold, and ultra-wide 1.2 V–3.6 V operation - reducing component count and layout complexity in space-constrained industrial and telecom modules.

Availability

74ALVCH162244DGG is available at Aetrix Electronics and suitable for industrial backplane interfaces, automated test equipment I/O modules, telecom line card data buses, and embedded computing memory expansion requiring stable component supply across extended temperature ranges.

Supply support for 74ALVCH162244DGG 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 - delivering energy-efficient, robust components for industrial, automotive, and consumer applications.

The 74ALVCH162244 belongs to Nexperia's advanced ALVCH logic family, designed specifically for low-voltage, high-speed parallel bus interfacing in space- and power-constrained industrial systems.

FAQ

Does the 74ALVCH162244DGG support hot-swap operation?

Yes - its IOFF circuitry actively disables outputs and blocks backflow current when VCC is at 0 V, enabling safe insertion/removal in live backplane systems. This is verified per JEDEC JESD78 Class II latch-up testing (>100 mA) and absolute maximum ratings (VI = −0.5 V to VCC + 0.5 V).

Can the 30 Ω termination resistors be bypassed for non-terminated applications?

No - the 30 Ω resistors are monolithically integrated in series with each output and cannot be disabled or shorted. For non-terminated use cases, consider the pin-compatible 74LVC162244ADGG, which lacks integrated termination but shares the same TSSOP48 footprint and logic function.

How does bus hold functionality interact with unused inputs during low-power modes?

Bus hold maintains the last driven logic state on all 16 inputs with ±75 μA minimum holding current at 3.0 V, preventing floating nodes and false triggering during MCU sleep cycles. It draws only 0.2 μA additional ICC current - confirmed in Table 6 under ΔICC (750 μA max).

What is the maximum capacitive load this device can drive while maintaining timing specs?

The device is characterized up to 50 pF load capacitance (Table 9), with tpd = 2.7 ns typ and tdis = 2.9 ns typ at VCC = 3.3 V. Driving >50 pF increases propagation delay nonlinearly and may violate setup/hold margins - external buffering is recommended beyond this limit.