Nexperia USA Inc. 74LVT162244BDGG,11

Overview

74LVT162244BDGG,11 from Nexperia is a 3.3 V 16-bit 3-state buffer/driver with integrated 30 Ω series output termination resistors, four independent output-enable controls (1OE–4OE), ±12 mA drive strength, and bus-hold inputs eliminating external pull-ups. It operates across -40 °C to +85 °C and interfaces directly with TTL logic in high-speed backplane or memory bus applications.

For engineers reviewing the 74LVT162244BDGG,11 datasheet, 74LVT162244BDGG,11 pinout, 74LVT162244BDGG,11 application, or 74LVT162244BDGG,11 equivalent, this device supports flexible partitioning (1×16-, 2×8-, or 4×4-bit), offers overvoltage-tolerant 5.5 V inputs, enables live insertion, and provides IOFF partial power-down functionality for system-level hot-swap and power management design.

Technical Context

This BiCMOS buffer implements four independent 4-bit groups, each controlled by a dedicated active-low output enable (1OE–4OE). Each output integrates a 30 Ω series resistor to match transmission line impedance and suppress reflections without external components.

Bus-hold circuitry maintains valid logic states on unused data inputs (1A0–4A3), while IOFF protection limits leakage when VCC = 0 V. Input clamping and ESD robustness (HBM >2000 V, CDM >1000 V) support rugged industrial operation.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, lead finish matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.

Compared with SN74LVC16244ADGGR and 74ALVCH162244PW,118, the 74LVT162244BDGG,11 uniquely combines on-die 30 Ω termination, 5.5 V input tolerance, bus-hold, and IOFF-making it optimal for rugged, hot-pluggable, and space-constrained industrial bus interfaces where signal integrity and system-level reliability are critical.

Availability

74LVT162244BDGG,11 is available at Aetrix Electronics and suitable for high-speed memory bus interface, backplane data distribution, hot-swappable I/O module, and industrial PLC I/O expansion requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 74LVT162244BDGG,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 optimized for efficiency, reliability, and miniaturization in industrial and automotive applications.

The 74LVT162244B belongs to Nexperia's LVT (Low-Voltage Technology) logic family, designed specifically for 3.3 V high-speed bus interfacing with robust noise immunity, hot-swap readiness, and system-level integration advantages.

FAQ

What is the purpose of the 30 Ω series resistors integrated into each output?

Each output includes a monolithic 30 Ω series resistor to match typical PCB trace impedances (e.g., 50–75 Ω differential pairs), suppressing signal reflections and overshoot without requiring external components. This reduces layout complexity, improves signal integrity on parallel buses, and eliminates 16 discrete resistors from the BOM and PCB.

Can 74LVT162244BDGG,11 safely interface with 5 V logic systems?

Yes-the inputs are overvoltage tolerant up to 5.5 V regardless of VCC (2.7–3.6 V), allowing direct connection to 5 V TTL outputs without level shifters. However, outputs swing only to VCC (max 3.6 V), so driving 5 V inputs requires external pull-ups or compatible receivers.

How does the bus-hold feature function, and what design benefit does it provide?

Bus-hold circuitry applies weak feedback to retain the last valid logic state on unused inputs using ±75–135 μA holding current. This eliminates the need for external pull-up or pull-down resistors, reducing component count, board area, and potential noise coupling from resistor networks.

Is 74LVT162244BDGG,11 suitable for hot-swap applications, and which features enable this?

Yes-it supports live insertion/extraction via IOFF circuitry (blocks current when VCC = 0 V), bus-hold (prevents floating inputs during partial power-up), and robust ESD protection (HBM >2000 V). These features prevent back-driving, latch-up, and transient damage during card insertion/removal in powered backplanes.