Texas Instruments SN74LVT16244BGQLR

Overview

SN74LVT16244BGQLR from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, designed for mixed-mode signal operation between 3.3-V and 5-V systems. It features four independent 4-bit sections, each with active-low output-enable (OE) control, supports hot insertion via Ioff and power-up 3-state, and delivers ±64 mA output drive at VCC = 3.3 V in industrial temperature range (–40°C to 85°C). It is used in high-speed bus interface applications such as memory address/data buffering in FPGA- or ASIC-based embedded controllers.

For engineers reviewing the SN74LVT16244BGQLR datasheet, SN74LVT16244BGQLR pinout, SN74LVT16244BGQLR application, or SN74LVT16244BGQLR equivalent, key selection considerations include its 56-ball VFBGA (GQL) package, 3.3-V ABT process enabling TTL-compatible inputs at 5 V, low ground bounce (<0.8 V), and guaranteed hot-plug capability per JESD 78 Class II latch-up performance.

Technical Context

The SN74LVT16244BGQLR implements four independent 4-bit noninverting buffers, each with dedicated active-low OE input controlling all four outputs simultaneously. Its ABT BiCMOS architecture enables 3.3-V supply operation while accepting 5-V-tolerant inputs - critical for bridging legacy 5-V logic to modern low-voltage domains.

It integrates Ioff circuitry that disables outputs when VCC = 0 V, preventing backflow current during hot insertion, and power-up 3-state logic ensuring outputs remain high-impedance during power ramping. The device operates across 2.7 V to 3.6 V supply range and meets JESD 22 ESD ratings: 2000-V HBM, 200-V MM, and 1000-V CDM.

Key Specifications

Pinout & Package

SN74LVT16244BGQLR uses a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package designated GQL, measuring 7.0 mm × 4.5 mm × 0.9 mm (max height), with 0.5-mm ball pitch and JEDEC MO-194 compliance. Pin 1 is located at corner A1 (top-left in top view), with balls arranged in a 7×8 array excluding NC positions.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVT16244BGQLR, SN74LVC16244ADGGR offers lower static power but sacrifices 5-V interface capability and output drive; 74ALVC16244PW provides pin-compatible TSSOP packaging but lacks the GQL's thermal performance and full 5-V input robustness - making SN74LVT16244BGQLR optimal for space-constrained, mixed-voltage industrial bus nodes.

Availability

SN74LVT16244BGQLR is available at Aetrix Electronics and suitable for memory interface buffering, FPGA I/O expansion, backplane data distribution, and industrial PLC bus isolation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74LVT16244BGQLR 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 SN74LVT16244B product line was engineered for robust 3.3-V bus interfacing in mixed-voltage systems, targeting applications demanding TTL compatibility, hot-swap resilience, and low ground bounce in space-constrained industrial and communications equipment.

FAQ

What is the maximum operating temperature range for SN74LVT16244BGQLR?

The SN74LVT16244BGQLR is rated for operation from –40°C to +85°C ambient temperature. This industrial temperature grade is confirmed in TI's official ordering information table and supported by thermal characterization data showing θJA = 42 °C/W for the GQL package. The device maintains full electrical specifications across this range, including IOL = 64 mA and tPLH ≤ 3.7 ns at VCC = 3.3 V.

Does SN74LVT16244BGQLR support true 5-V input tolerance?

Yes, SN74LVT16244BGQLR supports 5-V input tolerance with VCC as low as 2.7 V. Per the Absolute Maximum Ratings table, VI may reach 7 V, and the Recommended Operating Conditions specify VI = 5.5 V max. Electrical Characteristics confirm VIH = 2.0 V min and VIL = 0.8 V max - matching standard TTL thresholds - enabling direct connection to 5-V logic without external level shifters.

How does the Ioff feature function in SN74LVT16244BGQLR during hot insertion?

In SN74LVT16244BGQLR, the Ioff circuitry actively disables all outputs when VCC = 0 V, limiting current flow to ±100 µA even if 5-V signals are present on A or Y pins. This prevents damaging backflow current into a powered-down system, a requirement verified by JESD 78 Class II latch-up testing (>100 mA). The feature is intrinsic to the ABT process and requires no external components.

What is the ball pitch and footprint size of the GQL package used by SN74LVT16244BGQLR?

The SN74LVT16244BGQLR uses a 56-ball VFBGA package (GQL) with 0.5-mm ball pitch, overall dimensions of 7.0 mm × 4.5 mm, and maximum height of 0.9 mm. Mechanical drawings confirm JEDEC MO-194 compliance. The land pattern requires 0.27-mm diameter solder pads with 0.3-mm stencil aperture for reliable reflow - details validated in TI's DGG0048A and MTSS003D mechanical data sheets.

Can SN74LVT16244BGQLR be used as a single 16-bit buffer or must it be configured as four 4-bit sections?

SN74LVT16244BGQLR can be used flexibly as one 16-bit buffer, two 8-bit buffers, or four independent 4-bit buffers - as explicitly stated in the Functional Description. Each section (1–4) has dedicated OE inputs (1OE–4OE), allowing granular control. All 16 drivers share the same VCC and GND rails, and outputs are true (non-inverting), enabling unified or segmented enable strategies based on system timing requirements.