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

Texas Instruments SN74AUC16244DGVR

Name: SN74AUC16244DGVR
Brand: Texas Instruments
SKU: SN74AUC16244DGVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74AUC16244DGVR

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-TFSOP (0.173", 4.40mm Width)

Datasheet:: SN74AUC16244DGVR.pdf

Description:: IC BUF NON-INVERT 2.7V 48TVSOP

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Product details

Overview

SN74AUC16244DGVR from Texas Instruments is a 16-bit 3-state buffer/driver IC optimized for 1.8-V operation with 3.6-V I/O tolerance, sub-1-V operability, 2 ns max propagation delay at 1.8 V, and ±8-mA output drive. It serves as a high-density bus interface for memory address, clock distribution, and data bus driving in low-voltage embedded systems.

For engineers reviewing the SN74AUC16244DGVR datasheet, SN74AUC16244DGVR pinout, SN74AUC16244DGVR application, or SN74AUC16244DGVR equivalent, key selection criteria include its 1.65–1.95-V nominal VCC range, Ioff-enabled partial-power-down support, 20-µA max ICC, and TVSOP-48 (DGV) package compatibility with space-constrained PCB layouts.

Technical Context

This device implements four independent 4-bit noninverting buffers, each with symmetrical active-low 3-state enable inputs (1OE–4OE), enabling flexible configuration as one 16-bit, two 8-bit, or four 4-bit drivers. Its logic diagram confirms true (noninverting) outputs and no internal inversion.

Designed for mixed-mode signal environments, it supports 0.8-V to 2.7-V VCC operation but is characterized specifically for 1.65–1.95-V use. The Ioff circuitry disables outputs during power-down to prevent backflow current, and all unused inputs must be tied to VCC or GND per TI SCBA004 guidance.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	0.8 V to 2.7 V; fully operational down to sub-1-V, with optimal performance at 1.65–1.95 V.
Max tpd	2 ns at 1.8 V; enables high-speed timing-critical bus buffering without added latency.
I/O Tolerance	3.6-V tolerant; allows safe interfacing with higher-voltage logic domains in mixed-supply systems.
Output Drive	±8 mA at 1.8 V; sufficient to drive standard CMOS loads across typical trace lengths.
ICC (max)	20 µA; ultra-low static power ideal for battery-powered or thermally constrained applications.
Ioff Support	Enabled; prevents damaging current flow when VCC = 0, critical for hot-swap and partial-power-down designs.
ESD Rating	2000-V HBM, 200-V MM, 1000-V CDM; exceeds JEDEC standards for robust board-level handling.

Pinout & Package

SN74AUC16244DGVR uses a 48-pin TVSOP (DGV) package - 3.6 mm × 9.7 mm footprint, 1.2 mm max height, 0.4 mm pitch - optimized for high-density routing and automated assembly.

Pin/Terminal	Circuit Role	Design Meaning
1OE–4OE	Active-low 3-state enable inputs	Individually control output states of four 4-bit sections; tie to VCC via pullup for power-up high-Z safety.
1A1–4A4	Input terminals (16 total)	Noninverting data inputs; accept 0.8–2.7-V logic levels with 0.35×VCC/0.65×VCC thresholds.
1Y1–4Y4	True (noninverting) 3-state outputs (16 total)	Drive external buses or loads; enter high-impedance state when corresponding OE is high.
VCC (Pins 7, 14, 25, 32, 43)	Power supply	Five distributed VCC pins reduce IR drop and improve noise immunity across wide bus structures.
GND (Pins 4, 10, 17, 22, 27, 30, 37, 40, 47)	Ground reference	Nine GND pins provide low-inductance return paths, essential for signal integrity in 16-bit parallel interfaces.

Key Features

Feature	Design Value
Wide VCC operating range	0.8 V to 2.7 V enables interoperability with sub-1-V core logic and legacy 2.5-V peripherals.
3.6-V I/O tolerance	Allows direct connection to 3.3-V or 2.5-V buses without level-shifting components.
Sub-2-ns propagation delay	Meets tight timing budgets in DDR memory controllers, FPGA I/O expansion, and high-speed clock fanout.
Ioff partial-power-down	Permits safe insertion/removal in live backplanes and enables system-level power gating without latch-up risk.
Low input/output capacitance	Ci = 4.5 pF max, Co = 7.5 pF max; minimizes loading on driving sources and improves edge rate fidelity.

Applications

Memory Address Buffering	Clock Distribution Network
Use Scenario: Driving 16-bit address lines from an MCU or ASIC to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing isolation, fanout gain, and bus contention control via OE signals. Use Value: Eliminates address skew with 2 ns max tpd and sustains signal integrity across 10+ cm traces using distributed VCC/GND pins.	Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs). IC Role / Device Role / Timing Role: Low-skew, low-jitter clock driver with matched trace-length capability via identical 16-output path delays. Use Value: Delivers <2 ns inter-output skew and ±8-mA drive to maintain clean edges into 50-Ω terminated lines.
Low-Voltage Data Bus Interface	FPGA I/O Expansion
Use Scenario: Bridging a 1.8-V SoC data bus to external 2.5-V or 3.3-V peripherals in portable instrumentation. IC Role / Device Role / Timing Role: Level-translating 3-state transceiver supporting bidirectional data flow with independent OE control per 4-bit segment. Use Value: 3.6-V I/O tolerance and 1.8-V core operation eliminate discrete level shifters while maintaining timing margins.	Use Scenario: Expanding limited FPGA I/O count to drive 16-bit parallel LCD interfaces, sensor arrays, or industrial I/O modules. IC Role / Device Role / Timing Role: High-density, low-power buffer isolating FPGA pins from capacitive bus loads and ESD events. Use Value: 20-µA ICC and 1000-V CDM rating protect FPGA I/O banks while enabling compact TVSOP placement near connectors.

Memory Address Buffering

Clock Distribution Network

Use Scenario: Driving 16-bit address lines from an MCU or ASIC to multiple SRAM or Flash devices on a shared bus.

IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing isolation, fanout gain, and bus contention control via OE signals.

Use Value: Eliminates address skew with 2 ns max tpd and sustains signal integrity across 10+ cm traces using distributed VCC/GND pins.

Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs).

IC Role / Device Role / Timing Role: Low-skew, low-jitter clock driver with matched trace-length capability via identical 16-output path delays.

Use Value: Delivers <2 ns inter-output skew and ±8-mA drive to maintain clean edges into 50-Ω terminated lines.

Low-Voltage Data Bus Interface

FPGA I/O Expansion

Use Scenario: Bridging a 1.8-V SoC data bus to external 2.5-V or 3.3-V peripherals in portable instrumentation.

IC Role / Device Role / Timing Role: Level-translating 3-state transceiver supporting bidirectional data flow with independent OE control per 4-bit segment.

Use Value: 3.6-V I/O tolerance and 1.8-V core operation eliminate discrete level shifters while maintaining timing margins.

Use Scenario: Expanding limited FPGA I/O count to drive 16-bit parallel LCD interfaces, sensor arrays, or industrial I/O modules.

IC Role / Device Role / Timing Role: High-density, low-power buffer isolating FPGA pins from capacitive bus loads and ESD events.

Use Value: 20-µA ICC and 1000-V CDM rating protect FPGA I/O banks while enabling compact TVSOP placement near connectors.

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
SN74AUP16244DGVR	Lower ICC (0.5 µA vs. 20 µA), slower tpd (3.4 ns vs. 2 ns at 1.8 V), same DGV package and pinout.	Better suited for ultra-low-power sleep modes; less suitable for >100-MHz bus timing.	Select SN74AUP16244DGVR only if standby current dominates design priority over speed.
74LVC16244APAG	3.3-V optimized (1.65–3.6-V VCC), higher drive (±24 mA), TSSOP-48 (DGG) package - not pin-compatible.	Requires PCB redesign due to different footprint; better for 3.3-V systems needing stronger drive.	Choose 74LVC16244APAG only when migrating to 3.3-V infrastructure and layout revision is acceptable.

Compared with SN74AUC16244DGVR, SN74AUP16244DGVR trades speed for lower static power, while 74LVC16244APAG offers higher drive and voltage range at the cost of package incompatibility and increased power consumption - making SN74AUC16244DGVR the optimal balance for 1.8-V, high-speed, space-constrained bus buffering.

Availability

SN74AUC16244DGVR is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, low-voltage data interfaces, and FPGA I/O expansion requiring stable component supply and long-term industrial availability.

Supply support for SN74AUC16244DGVR 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-performance, low-power interface ICs.

SN74AUC16244DGVR belongs to TI's Widebus™ family - engineered for high-density, high-speed memory and bus interface applications in portable, industrial, and communications equipment.

FAQ

What is the recommended operating voltage range for the SN74AUC16244DGVR?

The SN74AUC16244DGVR is designed for reliable operation from 0.8 V to 2.7 V, but its recommended range is 1.65 V to 1.95 V for optimal timing and drive performance. At 1.8 V, it achieves 2 ns max propagation delay and ±8-mA output drive - values confirmed in TI's SCES399E datasheet under standard test conditions.

Does the SN74AUC16244DGVR support partial-power-down functionality?

Yes, the SN74AUC16244DGVR includes Ioff circuitry that disables outputs when VCC = 0, preventing damaging current backflow during hot-swap or system power sequencing. This feature is fully specified per JESD 78 Class II latch-up testing and is validated across –40°C to 85°C operation.

Is the SN74AUC16244DGVR pin-compatible with other 16-bit buffer variants in TI's portfolio?

No - SN74AUC16244DGVR uses the TVSOP-48 (DGV) package with a unique pin assignment optimized for signal integrity. While SN74AUC16244DGGR shares identical logic and electrical specs, it uses TSSOP-48 (DGG) with different mechanical dimensions and land pattern requirements, making them not mechanically interchangeable.

What is the maximum output drive capability of the SN74AUC16244DGVR at 1.8 V?

At 1.8 V, the SN74AUC16244DGVR delivers ±8 mA per output - verified in the Electrical Characteristics table of SCES399E. This drive strength supports standard CMOS loads with rise/fall times compatible with 100-MHz bus operation and ensures robust noise margins in noisy industrial environments.

How does the SN74AUC16244DGVR handle unused inputs?

All unused inputs on the SN74AUC16244DGVR must be tied to either VCC or GND to prevent floating nodes, which could cause excessive ICC or erratic behavior. TI's application report SCBA004 explicitly mandates this practice - no pull-up/pull-down resistors are required beyond direct connection, as the device lacks internal biasing.

SN74AUC16244DGVR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74AUC

Package/Case:: 48-TFSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

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:: 48-TVSOP

SN74AUC16244DGVR FAQ

1.How can I place an order for SN74AUC16244DGVR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74AUC16244DGVR 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 SN74AUC16244DGVR reliable?

The price and inventory of SN74AUC16244DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC16244DGVR is usually 5 days.

3.What payment methods are accepted for SN74AUC16244DGVR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC16244DGVR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74AUC16244DGVR?

SN74AUC16244DGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74AUC16244DGVR 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 SN74AUC16244DGVR?

For technical support, including SN74AUC16244DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC16244DGVR requirements.

6.How does Aetrix verify that SN74AUC16244DGVR is sourced from the original manufacturer or authorized distributors?

All SN74AUC16244DGVR 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 SN74AUC16244DGVR meets industry standards.

7.What is the process for return or replacement of SN74AUC16244DGVR?

All SN74AUC16244DGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC16244DGVR, 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 SN74AUC16244DGVR part is unused and in its original packaging.

Return procedure for SN74AUC16244DGVR:

1.Submit a request within 90 days.

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

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