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

Texas Instruments SN74AUC16244GQLR

Name: SN74AUC16244GQLR
Brand: Texas Instruments
SKU: SN74AUC16244GQLR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74AUC16244GQLR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 56-VFBGA

Datasheet:: SN74AUC16244GQLR.pdf

Description:: IC BUFFER NON-INVERT 2.7V 56BGA

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Product details

Overview

SN74AUC16244GQLR from Texas Instruments is a 16-bit noninverting 3-state buffer/driver optimized for 1.8-V operation, featuring ±8-mA output drive at 1.8 V, 2-ns max propagation delay, 20-µA max ICC, and Ioff support for partial-power-down mode. It serves as a high-density bus interface in low-voltage memory address, clock, and data bus applications.

For engineers reviewing the SN74AUC16244GQLR datasheet, SN74AUC16244GQLR pinout, SN74AUC16244GQLR application, or SN74AUC16244GQLR equivalent, key selection criteria include sub-2-V supply compatibility, 3-state output timing (ten/tdis), Ioff-enabled system-level power sequencing, and VFBGA-48 (GQL) package footprint constraints.

Technical Context

This device implements four independent 4-bit buffer sections, each with symmetrical active-low output-enable (OE) inputs and true (noninverting) outputs. Its architecture supports flexible configuration as one 16-bit, two 8-bit, or four 4-bit buffers - all sharing common VCC/GND rails and independent OE control per group.

Designed for 0.8-V to 2.7-V operation (optimized at 1.65–1.95 V), it integrates Ioff circuitry that disables outputs during power-down to prevent backflow current, and features 3.6-V I/O tolerance enabling mixed-mode signal interfacing with higher-voltage logic domains.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	0.8 V to 2.7 V - enables operation in ultra-low-voltage systems (e.g., battery-powered SoC interfaces) and compatibility with 1.2-V, 1.5-V, and 1.8-V supply domains.
tpd (Max)	2 ns at 1.8 V - ensures minimal signal delay in high-speed address/data buffering for DDR memory controllers and FPGA I/O expansion.
IOL / IOH	±8 mA at 1.65 V - provides sufficient drive strength to fan out to multiple CMOS loads without external termination or level-shifting.
Ioff Support	Yes - allows safe isolation of powered-down subsystems (e.g., hot-swap modules or sleep-mode peripherals) without risk of damaging back-current.
IOZ (High-Z Leakage)	10 µA at 2.7 V - guarantees low standby current in 3-state-bus hold conditions, critical for power-sensitive portable and IoT edge devices.
ESD Rating	2000-V HBM, 200-V MM, 1000-V CDM - meets industrial-grade robustness requirements for board-level handling and field deployment.
Package	VFBGA-48 (GQL), 3.6 mm × 3.6 mm, 0.5-mm pitch - delivers high I/O density in space-constrained embedded PCB layouts.

Pinout & Package

VFBGA-48 (GQL) package: 3.6 mm × 3.6 mm body, 0.5-mm ball pitch, JEDEC MO-153 compliant, 6 × 11 array with corner balls omitted (pins A1, A11, K1, K11 unused). Thermal resistance θJA = 42°C/W.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low group output-enable	Independent control per 4-bit section; tied high via pullup to ensure Hi-Z at power-up; enables selective bus gating without software overhead.
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Input terminals	16 total inputs; accept 0.8–2.7-V logic levels; 3.6-V tolerant - allows direct connection to 3.3-V or 2.5-V drivers without level shifters.
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	True (noninverting) 3-state outputs	16 buffered outputs; drive ±8 mA at 1.65 V; Hi-Z state leakage ≤10 µA - supports shared-bus arbitration and dynamic load switching.
VCC (Pins C3, C4, H3, H4, G7, G8)	Power supply	Multiple distributed VCC balls reduce IR drop and improve noise immunity; must be decoupled locally with 100-nF ceramic capacitors.
GND (Pins B3, B4, D3, D4, G3, G4, J3, J4)	Ground reference	Eight dedicated GND balls provide low-inductance return paths; essential for maintaining signal integrity at sub-2-ns edge rates.

Key Features

Feature	Design Value
Sub-1-V operability	Functional down to 0.8 V VCC - supports emerging ultra-low-power microcontroller I/O domains and energy-harvesting system interfaces.
3.6-V I/O tolerance	Inputs and outputs withstand up to 3.6 V regardless of VCC - eliminates need for external voltage translators when interfacing with legacy 3.3-V peripherals.
Low dynamic power	20-µA max ICC at 2.7 V - reduces quiescent power in always-on bus monitoring circuits and sensor hub aggregators.
Symmetrical enable timing	ten = 1.4 ns, tdis = 2.6 ns (typ, 1.8 V) - ensures predictable bus release and acquisition windows for synchronous protocol handshaking.
Latch-up immunity	>100 mA per JESD 78 Class II - guarantees robustness against transient overvoltage events in industrial control backplanes.

Applications

Memory Address Buffering	Clock Distribution
Use Scenario: Driving row/column address lines from an MCU or ASIC to multiple parallel SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: 16-bit noninverting buffer with per-group 3-state control, isolating inactive memory banks to reduce capacitive loading and crosstalk. Use Value: Enables simultaneous access to heterogeneous memory types (e.g., 1.8-V LPDDR2 controller + 3.3-V NOR Flash) using single-supply SN74AUC16244GQLR with no level shifters.	Use Scenario: Distributing a master clock signal to multiple low-power peripherals (e.g., ADCs, DACs, sensors) while supporting dynamic clock gating. IC Role / Device Role / Timing Role: Low-skew, low-jitter buffer with independent OE control per 4-bit segment - allows selective clock enable/disable per peripheral cluster. Use Value: Achieves sub-2-ns inter-output skew and eliminates clock feedthrough during sleep modes via Ioff-enabled Hi-Z isolation of powered-down domains.
Bus Transceiver Interface	FPGA I/O Expansion
Use Scenario: Bidirectional data bus isolation between a 1.8-V SoC and legacy 3.3-V peripheral (e.g., UART, SPI flash) using external direction control. IC Role / Device Role / Timing Role: Unidirectional 16-bit buffer configured as half of a transceiver pair; leverages 3.6-V I/O tolerance for safe 3.3-V signal reception. Use Value: Eliminates discrete level translators and reduces BOM count by 3+ components per interface, while maintaining 2-ns timing margin for 50-MHz SPI bursts.	Use Scenario: Expanding limited FPGA GPIO count to drive external displays, keypad matrices, or LED arrays in compact wearable designs. IC Role / Device Role / Timing Role: High-density 16-bit output expander with VFBGA-48 footprint - fits within tight FPGA carrier board real estate constraints. Use Value: Delivers ±8-mA drive per pin to directly sink/source display segment currents or LED rows, avoiding external transistor arrays and saving >12 mm² PCB area.

Memory Address Buffering

Clock Distribution

Use Scenario: Driving row/column address lines from an MCU or ASIC to multiple parallel SRAM or Flash devices on a shared bus.

IC Role / Device Role / Timing Role: 16-bit noninverting buffer with per-group 3-state control, isolating inactive memory banks to reduce capacitive loading and crosstalk.

Use Value: Enables simultaneous access to heterogeneous memory types (e.g., 1.8-V LPDDR2 controller + 3.3-V NOR Flash) using single-supply SN74AUC16244GQLR with no level shifters.

Use Scenario: Distributing a master clock signal to multiple low-power peripherals (e.g., ADCs, DACs, sensors) while supporting dynamic clock gating.

IC Role / Device Role / Timing Role: Low-skew, low-jitter buffer with independent OE control per 4-bit segment - allows selective clock enable/disable per peripheral cluster.

Use Value: Achieves sub-2-ns inter-output skew and eliminates clock feedthrough during sleep modes via Ioff-enabled Hi-Z isolation of powered-down domains.

Bus Transceiver Interface

FPGA I/O Expansion

Use Scenario: Bidirectional data bus isolation between a 1.8-V SoC and legacy 3.3-V peripheral (e.g., UART, SPI flash) using external direction control.

IC Role / Device Role / Timing Role: Unidirectional 16-bit buffer configured as half of a transceiver pair; leverages 3.6-V I/O tolerance for safe 3.3-V signal reception.

Use Value: Eliminates discrete level translators and reduces BOM count by 3+ components per interface, while maintaining 2-ns timing margin for 50-MHz SPI bursts.

Use Scenario: Expanding limited FPGA GPIO count to drive external displays, keypad matrices, or LED arrays in compact wearable designs.

IC Role / Device Role / Timing Role: High-density 16-bit output expander with VFBGA-48 footprint - fits within tight FPGA carrier board real estate constraints.

Use Value: Delivers ±8-mA drive per pin to directly sink/source display segment currents or LED rows, avoiding external transistor arrays and saving >12 mm² PCB area.

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	Higher VCC min (1.65 V), slower tpd (3.2 ns @ 3.3 V), 24-mA drive @ 3.3 V	Requires 3.3-V domain; not suitable for sub-1.8-V systems	Select when interfacing exclusively with 3.3-V logic and higher drive strength is needed.
SN74AUP1G07DBVR	Single-channel, open-drain, 0.8–3.6-V operation, 4-mA drive @ 1.8 V	Not pin-compatible; requires 16× duplication for equivalent channel count	Use only for ultra-low-power, low-pin-count point-to-point buffering where density is secondary to ICC (0.9-µA typical).

Compared with SN74AUC16244GQLR, SN74LVC16244ADGGR trades speed and voltage scalability for higher drive in 3.3-V systems, while SN74AUP1G07DBVR offers extreme low-power per channel but lacks integration - making SN74AUC16244GQLR optimal for space-constrained, mixed-voltage, high-speed bus buffering.

Availability

SN74AUC16244GQLR is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, bus transceiver interfaces, and FPGA I/O expansion requiring stable component supply across industrial, automotive, and consumer electronics programs.

Supply support for SN74AUC16244GQLR 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 delivering analog, embedded processing, and connectivity solutions, with over 90 years of innovation in precision analog and logic IC design.

The SN74AUC16244GQLR belongs to TI's Widebus™ family - engineered specifically to improve performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers/transmitters in sub-2-V systems.

FAQ

What is the minimum operating voltage for the SN74AUC16244GQLR?

The SN74AUC16244GQLR operates down to 0.8 V VCC, with guaranteed functionality across the full –40°C to 85°C temperature range. This sub-1-V capability makes SN74AUC16244GQLR suitable for ultra-low-power applications such as energy-harvesting sensor nodes and battery-backed real-time clocks where supply rails dip below 1.0 V during brownout conditions.

Does the SN74AUC16244GQLR support hot insertion or partial-power-down operation?

Yes, the SN74AUC16244GQLR includes Ioff circuitry that actively disables outputs when VCC = 0 V, preventing damaging current backflow from live buses into unpowered sections. This feature is explicitly validated per JESD 78 and enables safe hot-plug operation in modular systems - a core design requirement confirmed for SN74AUC16244GQLR in TI's SCES399E datasheet.

Can the SN74AUC16244GQLR interface directly with 3.3-V logic without level shifters?

Yes, the SN74AUC16244GQLR has 3.6-V I/O tolerance on all inputs and outputs, meaning it safely accepts and drives 3.3-V signals even when powered from 1.8 V. This capability is specified in the Absolute Maximum Ratings table and verified across process corners - eliminating external level translation hardware when connecting SN74AUC16244GQLR to legacy 3.3-V peripherals.

What is the thermal resistance (θJA) of the SN74AUC16244GQLR in its GQL package?

The SN74AUC16244GQLR in the VFBGA-48 (GQL) package has a junction-to-ambient thermal resistance (θJA) of 42°C/W, measured under standard JEDEC JESD51-7 conditions. This value reflects the package's superior heat dissipation versus TSSOP (DGG, 70°C/W) and TVSOP (DGV, 58°C/W), making SN74AUC16244GQLR preferred for thermally constrained high-density PCBs.

How many independent output-enable controls does the SN74AUC16244GQLR provide?

The SN74AUC16244GQLR provides four independent active-low output-enable inputs (1OE, 2OE, 3OE, 4OE), each controlling a dedicated 4-bit buffer section. This segmentation allows granular bus management - for example, enabling only memory address lines while keeping data lines in Hi-Z - a capability explicitly defined in the FUNCTION TABLE and LOGIC DIAGRAM of the SN74AUC16244GQLR datasheet.

SN74AUC16244GQLR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74AUC

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:: 9mA, 9mA

Voltage - Supply:: 0.8V ~ 2.7V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

SN74AUC16244GQLR FAQ

1.How can I place an order for SN74AUC16244GQLR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74AUC16244GQLR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

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The price and inventory of SN74AUC16244GQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC16244GQLR is usually 5 days.

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5.How can I obtain technical support or documentation for SN74AUC16244GQLR?

For technical support, including SN74AUC16244GQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC16244GQLR requirements.

6.How does Aetrix verify that SN74AUC16244GQLR is sourced from the original manufacturer or authorized distributors?

All SN74AUC16244GQLR 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 SN74AUC16244GQLR meets industry standards.

7.What is the process for return or replacement of SN74AUC16244GQLR?

All SN74AUC16244GQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC16244GQLR, 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 SN74AUC16244GQLR part is unused and in its original packaging.

Return procedure for SN74AUC16244GQLR:

1.Submit a request within 90 days.

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

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