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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments SN74ALVC16244AGQLR

Name: SN74ALVC16244AGQLR
Brand: Texas Instruments
SKU: SN74ALVC16244AGQLR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74ALVC16244AGQLR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 56-VFBGA

Datasheet:: SN74ALVC16244AGQLR.pdf

Description:: IC BUFFER NON-INVERT 3.6V 56BGA

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Product details

Overview

SN74ALVC16244AGQLR from Texas Instruments is a 16-bit non-inverting buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V V_CC operation. It delivers ±24-mA drive strength at 3.3 V, achieves 3-ns max propagation delay, and supports memory-address, clock, and bus-oriented applications in industrial and embedded systems.

For engineers reviewing the SN74ALVC16244AGQLR datasheet, SN74ALVC16244AGQLR pinout, SN74ALVC16244AGQLR application, or SN74ALVC16244AGQLR equivalent, key selection criteria include 3-state output control timing (t_en/t_dis ≤ 5.7 ns), VFBGA-56 (GQL) package compatibility, I/O voltage tolerance up to 3.6 V, and latch-up immunity >250 mA per JESD 17.

Technical Context

This device implements four independent 4-bit buffers, each with symmetrical active-low output-enable (OE) inputs and true (non-inverted) outputs. Its CMOS ALVC logic family ensures rail-to-rail input thresholds (V_IL/V_IH scaled to V_CC) and low dynamic power consumption (I_CC ≤ 40 µA at 3.6 V).

It operates across –40°C to +85°C, supports hot-insertion due to I/O overvoltage tolerance (–0.5 V to V_CC + 0.5 V), and features ESD protection exceeding 2000-V HBM, 200-V MM, and 1000-V CDM per JESD 22.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - Enables interoperability with 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters.
Max t_pd	3 ns at 3.3 V - Supports high-speed address/data buffering in DDR memory interfaces and FPGA I/O expansion.
Output Drive	±24 mA at 3.3 V - Drives 50-Ω transmission lines or multiple CMOS loads without external buffers.
t_en/t_dis	≤ 5.7 ns / ≤ 5.2 ns at 3.3 V - Ensures fast bus turnaround in time-critical shared-bus architectures.
I/O Voltage Range	–0.5 V to V_CC + 0.5 V - Allows safe operation during hot-swap or partial-power-down conditions.
Latch-Up Immunity	>250 mA per JESD 17 - Guarantees robustness against transient current faults in industrial environments.
ESD Protection	2000-V HBM, 200-V MM, 1000-V CDM - Meets stringent reliability requirements for automated assembly and field deployment.

Pinout & Package

VFBGA-56 package (GQL), 5.5 mm × 5.5 mm, 0.5-mm ball pitch, bottom-side solder balls, JEDEC MO-191 compliant.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low output enable	Independent control of each 4-bit buffer group; OE tied to V_CC via pullup ensures Hi-Z on power-up.
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Data inputs	16 total inputs; CMOS-compatible thresholds scale with V_CC (e.g., V_IL = 0.35×V_CC at 1.65 V).
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	True buffered outputs	16 total 3-state outputs; capable of sourcing/sinking ±24 mA at 3.3 V with <0.55-V VOL.
V_CC (pins C3, C4, H3, H4, J9, J10)	Power supply	Multiple distributed V_CC balls reduce IR drop and improve noise immunity in high-speed switching.
GND (pins B3, B4, D3, D4, G3, G4, J3, J4)	Ground reference	Eight dedicated ground balls provide low-inductance return paths for all 16 outputs.

Key Features

Feature	Design Value
Rail-to-rail input threshold scaling	V_IH/V_IL dynamically track V_CC, enabling reliable interfacing across 1.65–3.6 V supply rails without external biasing.
Hot-insertion tolerant I/O	Inputs/outputs withstand –0.5 V to V_CC + 0.5 V, supporting live insertion into powered backplanes or modular systems.
Distributed power/ground ball layout	12 V_CC/GND balls (6 each) minimize simultaneous switching noise and maintain signal integrity at 3-ns propagation speeds.
Low quiescent current	I_CC ≤ 40 µA at 3.6 V enables use in battery-backed or always-on subsystems without thermal penalty.
Industry-standard Widebus™ architecture	Pin-compatible with TI's ALVC family, allowing drop-in upgrades from SN74ALVC16244A variants in existing designs.

Applications

Memory Address Buffering	Clock Distribution
Use Scenario: Driving parallel address buses between microcontrollers and SRAM/Flash devices in industrial PLCs. IC Role / Device Role / Timing Role: 16-bit non-inverting buffer isolating MCU address pins from capacitive bus loading while maintaining setup/hold timing margins. Use Value: 3-ns t_pd and ±24-mA drive ensure full-speed operation at 100-MHz bus rates without timing violations or signal degradation.	Use Scenario: Fan-out and level translation of system clocks to multiple FPGA banks or ASIC peripherals. IC Role / Device Role / Timing Role: Low-skew 3-state driver enabling dynamic clock gating and multi-domain synchronization. Use Value: Matched t_en/t_dis (≤5.7 ns/≤5.2 ns) guarantees deterministic bus arbitration and eliminates clock glitches during enable transitions.
Bus Transceiver Interface	FPGA I/O Expansion
Use Scenario: Bidirectional data buffering between legacy parallel peripherals (e.g., LCD controllers) and modern SoCs with limited native I/O count. IC Role / Device Role / Timing Role: Four independent 4-bit groups allow selective enable/disable of sub-buses, reducing contention and power consumption. Use Value: Independent OE pins per group enable fine-grained control-critical for mixed-voltage (1.8 V/3.3 V) interconnects without level shifters.	Use Scenario: Extending I/O count of Xilinx Artix-7 or Intel Cyclone V FPGAs for sensor aggregation in edge AI gateways. IC Role / Device Role / Timing Role: High-drive buffer translating FPGA core voltages (1.2 V/1.8 V) to 3.3-V peripheral interfaces while preserving signal integrity. Use Value: 24-mA drive capability and 7-pF output capacitance support clean edges on 10-cm PCB traces, eliminating need for external termination.

Memory Address Buffering

Clock Distribution

Use Scenario: Driving parallel address buses between microcontrollers and SRAM/Flash devices in industrial PLCs.

IC Role / Device Role / Timing Role: 16-bit non-inverting buffer isolating MCU address pins from capacitive bus loading while maintaining setup/hold timing margins.

Use Value: 3-ns t_pd and ±24-mA drive ensure full-speed operation at 100-MHz bus rates without timing violations or signal degradation.

Use Scenario: Fan-out and level translation of system clocks to multiple FPGA banks or ASIC peripherals.

IC Role / Device Role / Timing Role: Low-skew 3-state driver enabling dynamic clock gating and multi-domain synchronization.

Use Value: Matched t_en/t_dis (≤5.7 ns/≤5.2 ns) guarantees deterministic bus arbitration and eliminates clock glitches during enable transitions.

Bus Transceiver Interface

FPGA I/O Expansion

Use Scenario: Bidirectional data buffering between legacy parallel peripherals (e.g., LCD controllers) and modern SoCs with limited native I/O count.

IC Role / Device Role / Timing Role: Four independent 4-bit groups allow selective enable/disable of sub-buses, reducing contention and power consumption.

Use Value: Independent OE pins per group enable fine-grained control-critical for mixed-voltage (1.8 V/3.3 V) interconnects without level shifters.

Use Scenario: Extending I/O count of Xilinx Artix-7 or Intel Cyclone V FPGAs for sensor aggregation in edge AI gateways.

IC Role / Device Role / Timing Role: High-drive buffer translating FPGA core voltages (1.2 V/1.8 V) to 3.3-V peripheral interfaces while preserving signal integrity.

Use Value: 24-mA drive capability and 7-pF output capacitance support clean edges on 10-cm PCB traces, eliminating need for external termination.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16244ADGGR	Same pinout, TSSOP-48 package; lower drive (±24 mA only at 3.3 V, degrades to ±12 mA at 2.5 V); higher t_pd (3.9 ns typical).	Preferred for cost-sensitive board-level designs where TSSOP hand-soldering or rework is required.	Select when footprint flexibility and reworkability outweigh VFBGA space savings and thermal performance.
74ALVC16244A-138 (Diodes Inc.)	Functionally identical ALVC logic; same 1.65–3.6 V range and ±24-mA drive; GQL package not offered-only available in TSSOP and SSOP.	Suitable for dual-sourcing programs requiring second-source qualification without layout change for leaded packages.	Choose for supply-chain diversification where TSSOP/SSOP compatibility is mandatory and VFBGA is not required.

Compared with SN74LVC16244ADGGR and 74ALVC16244A-138, the SN74ALVC16244AGQLR provides superior thermal dissipation (θ_JA = 42°C/W vs. 70°C/W for TSSOP) and board-area efficiency in space-constrained embedded modules, while retaining full electrical compatibility within the ALVC family.

Availability

SN74ALVC16244AGQLR is available at Aetrix Electronics and suitable for memory-address buffering, clock distribution, and FPGA I/O expansion requiring stable component supply across industrial temperature ranges (–40°C to +85°C).

Supply support for SN74ALVC16244AGQLR 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 expertise in high-reliability interface ICs.

The SN74ALVC16244AGQLR belongs to TI's Widebus™ ALVC logic family, engineered for high-speed, low-voltage bus interface applications in industrial automation, communications infrastructure, and programmable logic systems.

FAQ

What is the recommended power-up sequence for SN74ALVC16244AGQLR?

TI recommends tying all OE inputs to V_CC through a pullup resistor (minimum value determined by driver sink capability) to ensure outputs remain in high-impedance state during power-up. V_CC must stabilize before applying input signals. The SN74ALVC16244AGQLR does not require strict sequencing between V_CC and OE, but OE should be held inactive until V_CC reaches ≥1.5 V to prevent undefined output states.

Can SN74ALVC16244AGQLR interface directly with 1.8-V and 3.3-V logic families?

Yes. The SN74ALVC16244AGQLR operates from 1.65 V to 3.6 V and features scalable input thresholds (e.g., V_IL = 0.35×V_CC at 1.65 V, V_IH = 2.0 V at 3.3 V), enabling direct connection to both 1.8-V and 3.3-V CMOS outputs without level shifters. Its outputs swing rail-to-rail, ensuring compatible VOH/VOL margins.

What is the thermal resistance (θ_JA) of the SN74ALVC16244AGQLR in its GQL package?

The SN74ALVC16244AGQLR has a junction-to-ambient thermal resistance (θ_JA) of 42°C/W under standard JEDEC test conditions (JESD 51-7). This value assumes a two-layer PCB with 1-in² copper pour per side and is confirmed in TI's official packaging documentation for the VFBGA-56 GQL variant.

Does SN74ALVC16244AGQLR support hot-swap or live-insertion?

Yes. The SN74ALVC16244AGQLR supports hot-swap operation: its I/O pins tolerate –0.5 V to V_CC + 0.5 V, and it features robust ESD protection (2000-V HBM, 200-V MM, 1000-V CDM). When used with current-limiting series resistors and proper OE control, the SN74ALVC16244AGQLR can be safely inserted into a live backplane without damaging connected circuitry.

How many independent 3-state control groups does SN74ALVC16244AGQLR provide?

The SN74ALVC16244AGQLR provides four independent active-low output-enable (OE) inputs - 1OE, 2OE, 3OE, and 4OE - each controlling a separate 4-bit buffer section (1Y1–1Y4, 2Y1–2Y4, etc.). This allows granular bus partitioning, dynamic power gating, and mixed-voltage domain isolation without external logic.

SN74ALVC16244AGQLR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74ALVC

Package/Case:: 56-VFBGA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 4

Number of Bits per Element:: 4

Input Type:: -

Output Type:: 3-State

Current - Output High, Low:: 24mA, 24mA

Voltage - Supply:: 1.65V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-BGA Microstar Junior (7x4.5)

SN74ALVC16244AGQLR FAQ

1.How can I place an order for SN74ALVC16244AGQLR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74ALVC16244AGQLR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SN74ALVC16244AGQLR reliable?

The price and inventory of SN74ALVC16244AGQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALVC16244AGQLR is usually 5 days.

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4.How is shipping managed for SN74ALVC16244AGQLR?

SN74ALVC16244AGQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74ALVC16244AGQLR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SN74ALVC16244AGQLR?

For technical support, including SN74ALVC16244AGQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALVC16244AGQLR requirements.

6.How does Aetrix verify that SN74ALVC16244AGQLR is sourced from the original manufacturer or authorized distributors?

All SN74ALVC16244AGQLR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74ALVC16244AGQLR meets industry standards.

7.What is the process for return or replacement of SN74ALVC16244AGQLR?

All SN74ALVC16244AGQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALVC16244AGQLR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SN74ALVC16244AGQLR part is unused and in its original packaging.

Return procedure for SN74ALVC16244AGQLR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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