Nexperia USA Inc. 74LVCH162244ADGG,5

Overview

74LVCH162244ADGG,5 from Nexperia is a 16-bit CMOS buffer/line driver with integrated 30 Ω series termination resistors, 3-state outputs, bus hold on all data inputs, and 5 V tolerant I/O. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation (3.3 V ↔ 5 V), and is rated for -40 °C to +125 °C. Used in high-speed parallel bus interfaces requiring signal integrity and input state retention.

For engineers reviewing the 74LVCH162244ADGG,5 datasheet, 74LVCH162244ADGG,5 pinout, 74LVCH162244ADGG,5 application, or 74LVCH162244ADGG,5 equivalent, this device serves as a robust, low-noise, translation-capable buffer for industrial control backplanes, FPGA I/O expansion, and memory subsystems where bus hold eliminates external pull-ups and on-die termination reduces PCB routing complexity.

Technical Context

This device implements four independent 4-bit non-inverting buffers, each controlled by a dedicated active-low output enable (1OE–4OE). Its Schmitt-trigger inputs tolerate slow-rising signals, while IOFF circuitry ensures safe partial power-down operation by disabling outputs and blocking backflow current when VCC = 0 V.

The 74LVCH162244ADGG,5 integrates bus hold on all 16 data inputs-eliminating need for external biasing-and features low-inductance multiple VCC/GND pins to suppress ground bounce. Its 30 Ω series resistors are placed between internal driver and output pad, enabling source-series termination for impedance-matched trace driving without discrete components.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1), 48-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm lead pitch. Pin 1 index marked; pin 1 located at top-left corner when notch faces up.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC162244ADGGR, the 74LVCH162244ADGG,5 adds bus hold and on-die termination-reducing BOM count and improving signal integrity-while the 74LVCH162244ADGV,5 offers identical functionality in a smaller footprint at the cost of thermal and assembly constraints.

Availability

74LVCH162244ADGG,5 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA I/O expansion, automotive body control modules, and ATE digital I/O cards requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVCH162244ADGG,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 logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74LVCH162244A belongs to Nexperia's advanced LVC/LVCH logic family, designed specifically for high-speed, low-power, mixed-voltage system interfacing with enhanced robustness for harsh environments and long-term manufacturability.

FAQ

Does the 74LVCH162244ADGG,5 require external pull-up resistors on unused inputs?

No. All 16 data inputs feature integrated bus hold circuitry, providing ±75 μA sustaining current at VCC = 3.0 V to maintain valid logic states without external components. This eliminates the need for 16 discrete pull-up resistors and associated PCB area and BOM cost.

Can the 74LVCH162244ADGG,5 be used with a 1.2 V supply and 5 V inputs simultaneously?

Yes. The device supports VCC as low as 1.2 V while maintaining full 5.5 V input tolerance on all data and control pins. This enables true bidirectional voltage translation-e.g., a 1.2 V SoC can safely read 5 V sensor signals without level shifters or clamping diodes.

What is the purpose of the 30 Ω series termination resistors?

These resistors are placed between the internal output driver and the package pin to provide source-series termination. When driving controlled-impedance PCB traces (e.g., 60 Ω), they suppress signal reflections and reduce overshoot/ringing-improving signal integrity without requiring 16 external SMT resistors.

How does the IOFF function protect the device during partial power-down?

When VCC = 0 V, the IOFF circuit disables all outputs and blocks current flow through them-even if 5 V signals are present on Yn or An pins. Measured IOFF leakage is ≤±20 μA, preventing damaging back-current from powered sections into unpowered logic domains during hot-swap or staged power sequencing.