Nexperia USA Inc. 74LVT162244BDGG,51

Overview

74LVT162244BDGG,51 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 inputs (1OE–4OE), bus-hold inputs eliminating external pull-ups, and ±12 mA drive capability. It operates across -40 °C to +85 °C and supports TTL-level interfacing in high-speed backplane and memory interface applications.

For engineers reviewing the 74LVT162244BDGG,51 datasheet, 74LVT162244BDGG,51 pinout, 74LVT162244BDGG,51 application, or 74LVT162244BDGG,51 equivalent, key selection criteria include its 30 Ω on-die termination, 2.7–3.6 V supply range, 2.5–4.2 ns propagation delay at 3.3 V, overvoltage-tolerant 5.5 V inputs, and TSSOP48 (SOT362-1) package with 48 pins and 6.1 mm body width.

Technical Context

This BiCMOS device implements four independent 4-bit 3-state buffers, each controlled by a dedicated active-low output enable (1OE–4OE). Each output includes a built-in 30 Ω series resistor for impedance matching, enabling direct connection to transmission lines without external termination.

Bus-hold circuitry maintains valid logic states on unused inputs, and IOFF functionality ensures low leakage during partial power-down. Inputs tolerate up to 5.5 V regardless of VCC, allowing safe interfacing with 5 V systems while operating at 3.3 V.

Key Specifications

Pinout & Package

TSSOP48 package (SOT362-1): 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 74ALVCH162244T, the 74LVT162244BDGG,51 uniquely integrates 30 Ω termination and bus-hold in a single TSSOP48 package, reducing component count and improving signal fidelity in dense, high-speed interconnects without sacrificing industrial temperature range or 5 V compatibility.

Availability

74LVT162244BDGG,51 is available at Aetrix Electronics and suitable for high-speed memory interfaces, industrial backplane buses, PLC I/O expansion, and TTL-level logic translation requiring stable component supply across extended temperature ranges.

Supply support for 74LVT162244BDGG,51 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 manufacturability in industrial and consumer applications.

The 74LVT series targets high-speed, low-voltage bus interface applications where BiCMOS performance, robust ESD immunity, and mixed-voltage interoperability are critical design requirements.

FAQ

Does the 74LVT162244BDGG,51 require external pull-up resistors on unused inputs?

No. The device features integrated bus-hold circuitry on all data inputs (1A0–4A3), which actively maintains the last-valid logic state without external components. This eliminates the need for pull-up or pull-down resistors on floating inputs, reducing BOM cost and PCB footprint while improving noise immunity during power-up or configuration gaps.

Can the 74LVT162244BDGG,51 safely interface with 5 V logic signals?

Yes. All inputs are overvoltage tolerant up to 5.5 V, independent of VCC voltage (2.7–3.6 V). This allows direct connection to 5 V TTL or CMOS outputs without level shifters or clamping diodes, provided output loads remain within the 3.3 V domain's drive capability and voltage limits.

What is the purpose of the 30 Ω series resistance on each output?

The 30 Ω resistor is integrated in series with each output driver to provide source termination for transmission lines. When paired with typical PCB trace impedances (e.g., 50–75 Ω), it minimizes signal reflections and ringing, improving signal integrity in high-speed parallel buses without requiring discrete surface-mount resistors or careful layout matching.

How does the IOFF feature benefit system-level power management?

IOFF disables current flow through outputs when VCC = 0 V, preventing parasitic powering or back-driving of the device from live bus lines. This supports safe hot-swap operations, partial system power-down, and compliance with IEC 61000-4-2 ESD immunity requirements during maintenance or modular upgrades.