Texas Instruments SN74LVT162244ADGGR

Overview

SN74LVT162244ADGGR from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, designed for mixed-mode signal interfacing between 3.3-V logic and 5-V systems. It features four independent 4-bit sections, each with active-low output-enable (OE), 12-mA drive capability per output, integrated 22-Ω series termination resistors, and operation down to 2.7 V supply. It is used in high-speed bus interface applications such as memory address/data buffering in industrial control backplanes.

For engineers reviewing the SN74LVT162244ADGGR datasheet, SN74LVT162244ADGGR pinout, SN74LVT162244ADGGR application, or SN74LVT162244ADGGR equivalent, key selection considerations include its 48-pin TSSOP package, hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND layout for noise reduction, and true TTL-compatible input thresholds at 3.3-V VCC.

Technical Context

The SN74LVT162244ADGGR implements a flow-through pin architecture across four independent 4-bit buffer sections, each with symmetrical active-low OE control and true (noninverting) output logic. Its ABT (Advanced BiCMOS Technology) process enables 3.3-V operation while accepting 5-V-tolerant inputs and delivering 5-V-compatible outputs under mixed-voltage conditions.

It supports unregulated battery operation from 2.7 V to 3.6 V, includes built-in 22-Ω series output resistors to suppress overshoot/undershoot, and guarantees high-impedance state during power-up/down via Ioff and power-up 3-state circuitry - critical for live insertion in modular systems.

Key Specifications

Pinout & Package

TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm body, 0.5-mm pitch, lead-free NiPdAu finish, JEDEC MO-153 compliant, moisture sensitivity level 1 (260°C reflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16244ADGGR and 74ALVCH162244DGGR, the SN74LVT162244ADGGR uniquely delivers 5-V-tolerant I/O with embedded termination and hot-insertion support - making it the sole choice for robust 3.3-V-to-5-V bus bridging without added components or layout overhead.

Availability

SN74LVT162244ADGGR is available at Aetrix Electronics and suitable for industrial backplane buffering, memory interface design, hot-swappable module integration, test equipment signal conditioning, and mixed-voltage system interconnect requiring stable component supply and long-term manufacturability.

Supply support for SN74LVT162244ADGGR 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of innovation in high-speed interface ICs and industrial-grade reliability.

The SN74LVT162244ADGGR belongs to TI's Widebus™ family of ABT logic devices, engineered specifically for low-voltage, high-speed bus interface applications in mixed-signal and multi-rail systems where signal integrity and interoperability are critical.

FAQ

What is the recommended operating voltage range for SN74LVT162244ADGGR?

The SN74LVT162244ADGGR is specified for VCC between 2.7 V and 3.6 V, with typical operation at 3.3 V. Operation outside this range may result in undefined logic behavior or degraded timing margins. The device supports unregulated battery operation down to 2.7 V, making it suitable for portable industrial equipment where rail stability varies.

Does SN74LVT162244ADGGR support hot insertion?

Yes, SN74LVT162244ADGGR supports hot insertion via two dedicated features: Ioff circuitry disables outputs when VCC = 0 V to prevent back-current, and power-up 3-state holds outputs in high-impedance until VCC exceeds 1.5 V. These functions are production-tested and comply with JEDEC JESD78 Class II latch-up requirements.

Can SN74LVT162244ADGGR interface directly with 5-V logic?

Yes, SN74LVT162244ADGGR accepts input voltages up to 5.5 V and drives outputs compatible with 5-V TTL thresholds while powered from 3.3 V. Its 5-V-tolerant inputs and outputs eliminate the need for external level shifters in mixed-voltage systems - a key differentiator from standard LVC or ALVC families.

What is the purpose of the integrated 22-Ω series resistors in SN74LVT162244ADGGR?

The SN74LVT162244ADGGR integrates 22-Ω series resistors on all outputs to dampen signal reflections on PCB traces, reducing overshoot and undershoot without requiring discrete termination. This simplifies layout, saves board space, and improves timing margin - especially on traces longer than 5 cm in high-speed bus applications.

How many independent 4-bit buffer sections does SN74LVT162244ADGGR contain?

The SN74LVT162244ADGGR contains four independent 4-bit noninverting buffer sections (labeled 1Y/1A through 4Y/4A), each with its own active-low output-enable (1OE–4OE). This architecture allows flexible partitioning - e.g., using one section for address lines, another for data, and two for control - without cross-talk or shared enable constraints.