Texas Instruments SN74LVC162244AGQLR

Overview

SN74LVC162244AGQLR from Texas Instruments is a 16-bit noninverting buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V V_CC operation. It features four independent 4-bit sections, each with active-low output-enable (OE) control, 5.5-V-tolerant inputs, and integrated 26-Ω series output resistors-enabling use in mixed-voltage bus interfacing, memory address driving, and clock distribution systems.

For engineers reviewing the SN74LVC162244AGQLR datasheet, SN74LVC162244AGQLR pinout, SN74LVC162244AGQLR application, or SN74LVC162244AGQLR equivalent, key selection criteria include its I_off support for live insertion, ±12 mA output drive at 3.3 V, 4.4 ns max propagation delay, 5.5-V input tolerance, and BGA MICROSTAR JUNIOR (GQL) 56-ball packaging with -40°C to +85°C operating range.

Technical Context

This device implements four independent 4-bit noninverting buffers, each with dedicated active-low OE control (1OE–4OE), enabling selective isolation of A→Y signal paths. All inputs tolerate up to 5.5 V regardless of V_CC, supporting down-translation from 5-V logic to 3.3-V or 1.8-V buses.

The outputs feature built-in 26-Ω series termination to suppress overshoot/undershoot without external components, and the I_off circuitry ensures high-impedance outputs and zero current backflow when V_CC = 0 V-critical for partial-power-down and hot-swap applications.

Key Specifications

Pinout & Package

GQL package: 56-ball MICROSTAR JUNIOR BGA, 7.0 mm × 4.5 mm body, 0.5-mm pitch, bottom-side solder balls. Pin assignments follow JEDEC MO-190 compliant layout with dedicated V_CC, GND, and I/O ball groups.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC162244AGQLR, the TSSOP and SSOP alternatives offer identical logic behavior and voltage tolerances but trade BGA's compact size and superior high-speed performance for easier assembly and thermal management-making them viable where layout density or RF-sensitive routing is not critical.

Availability

SN74LVC162244AGQLR is available at Aetrix Electronics and suitable for industrial bus isolation, memory address buffering, test equipment signal routing, and network switch control plane applications requiring stable component supply and long-term lifecycle support.

Supply support for SN74LVC162244AGQLR 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 experience in high-reliability interface IC design.

The SN74LVC162244AGQLR belongs to TI's Widebus™ family-engineered specifically to enhance density and performance of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in space-constrained systems.

FAQ

What is the operating temperature range for SN74LVC162244AGQLR?

The SN74LVC162244AGQLR is specified for operation from –40°C to +85°C ambient temperature. This range is validated per JEDEC JESD78 latch-up testing and supported by thermal characterization data including R_θJA and ψ_JB metrics for the GQL package. The device maintains full electrical compliance-including t_pd, V_OH, and V_OL-across this entire range.

Does SN74LVC162244AGQLR support 5-V input signals when powered at 3.3 V?

Yes, SN74LVC162244AGQLR accepts input voltages up to 5.5 V regardless of V_CC level, enabling direct interfacing with 5-V logic families while operating at 1.65–3.6 V. This is confirmed in the "Recommended Operating Conditions" table (VI = 0–5.5 V) and "Feature Description" section of the datasheet, and applies to all 16 input pins (1A1–4A4).

How does the I_off feature work in SN74LVC162244AGQLR?

The I_off circuitry in SN74LVC162244AGQLR disables all outputs and blocks current flow when V_CC = 0 V, limiting leakage to < ±10 µA. This prevents back-driving of powered circuitry during hot insertion or partial power-down-verified per JESD78 Class II latch-up testing and explicitly documented in Section 9.3 ("Feature Description") of the datasheet.

What is the maximum output drive capability of SN74LVC162244AGQLR?

SN74LVC162244AGQLR delivers ±12 mA per output at V_CC = 3.0 V (I_OL/I_OH limits), with absolute maximum continuous output current rated at ±50 mA total across all 16 outputs. These values are specified in Section 7.3 ("Recommended Operating Conditions") and validated under switching load conditions in Figure 3's test setup.

Is SN74LVC162244AGQLR pin-compatible with other packages in the SN74LVC162244A family?

No-SN74LVC162244AGQLR uses a 56-ball MICROSTAR JUNIOR BGA (GQL) footprint, while TSSOP (DGG), TVSOP (DGV), and SSOP (DL) variants use 48-pin leaded packages with different pinouts and mechanical dimensions. The GQL pin assignment table (Table 1) confirms unique ball mapping, and no pin-to-pin compatibility exists across these package types.