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

Texas Instruments SN74ALVC16244ADL

Name: SN74ALVC16244ADL
Brand: Texas Instruments
SKU: SN74ALVC16244ADL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74ALVC16244ADL

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-BSSOP (0.295", 7.50mm Width)

Datasheet:: SN74ALVC16244ADL.pdf

Description:: IC BUF NON-INVERT 3.6V 48SSOP

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Product details

Overview

SN74ALVC16244ADL 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 features ±24-mA output drive at 3.3 V, 3-ns max propagation delay at 3.3 V, and symmetrical active-low output-enable (OE) inputs. It supports memory-address, clock, and bus-oriented applications in industrial and embedded systems.

For engineers reviewing the SN74ALVC16244ADL datasheet, SN74ALVC16244ADL pinout, SN74ALVC16244ADL application, or SN74ALVC16244ADL equivalent, key selection criteria include 48-pin SSOP package compatibility, 3-state bus isolation capability, rail-to-rail input voltage thresholds, and latch-up immunity exceeding 250 mA per JESD 17.

Technical Context

The SN74ALVC16244ADL implements four independent 4-bit buffer sections, each with true output logic and dedicated active-low OE control (1OE–4OE). All inputs and outputs are CMOS-compatible with TTL-level thresholds across the full 1.65–3.6-V supply range.

It operates as a unidirectional, non-inverting driver with high-impedance state controlled exclusively by OE signals - no internal direction control or bus transceiver logic. Power-up/down robustness requires external pullup on OE pins to V_CC to ensure defined 3-state behavior during supply ramping.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - enables interoperability across 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters
t_pd Max	3 ns at V_CC = 3.3 V - supports high-speed address/data buffering in DDR2/DDR3 memory interfaces and FPGA I/O expansion
I_OH/I_OL	±24 mA at V_CC = 3.0 V - drives heavy capacitive loads (e.g., >30 pF traces or multiple CMOS inputs) without signal degradation
VIH/VIL Thresholds	V_CC-dependent: VIH = 2.0 V min at 3.3 V; VIL = 0.8 V max - ensures noise margin >0.5 V under worst-case V_CC and temperature
IOZ (Off-State Leakage)	±10 µA at V_CC = 3.6 V - prevents unintended current paths when outputs are disabled in shared-bus configurations
Latch-Up Immunity	>250 mA per JESD 17 - withstands transient overcurrent events in industrial backplane and hot-swap environments
ESD Protection	2000-V HBM, 200-V MM, 1000-V CDM - meets IEC 61000-4-2 Level 3 for system-level ESD robustness

Pinout & Package

SN74ALVC16244ADL uses a 48-pin SSOP (DL) package with 0.5-mm pitch, 12.6 mm × 6.2 mm body, and 1.2-mm max height. Pin 1 identifier is located at top-left corner with beveled edge marking.

Pin/Terminal	Circuit Role	Design Meaning
1OE–4OE	Active-low output enable	Each controls one 4-bit section; low = enabled, high = 3-state - allows independent bus segment isolation
1A1–4A4	Data inputs	16 total inputs grouped into four 4-bit banks; no internal inversion - preserves signal polarity end-to-end
1Y1–4Y4	True buffered outputs	16 total outputs with ±24-mA drive; high-impedance when corresponding OE is high - enables bidirectional bus sharing
V_CC (Pins 7, 21, 34, 48)	Power supply	Four distributed V_CC pins reduce IR drop and improve noise rejection across wide 48-pin layout
GND (Pins 4, 10, 15, 27, 32, 37, 43)	Ground reference	Seven GND pins provide low-inductance return paths and minimize ground bounce in high-speed switching

Key Features

Feature	Design Value
Widebus™ architecture	Optimized pinout and die layout for minimal trace skew across all 16 bits - critical for synchronous address bus timing
Rail-to-rail input thresholds	VIH/VIL scale with V_CC (e.g., VIH = 0.65×V_CC at 1.65 V) - guarantees reliable switching across entire supply range
Output drive symmetry	Identical \|I_OH\| and \|I_OL\| values (±24 mA at 3.0 V) - eliminates rise/fall time mismatch in clock distribution networks
Low dynamic power	I_CC = 40 µA max at V_CC = 3.6 V - reduces quiescent power in always-on peripheral interface circuits
Hot-insertion support	IOZ = ±10 µA and latch-up immunity >250 mA - enables safe insertion into live backplanes without system reset

Applications

Memory Address Buffering	Clock Distribution
Use Scenario: Driving 16-bit address lines from an MCU to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Unidirectional non-inverting buffer isolating MCU address outputs from load capacitance of parallel memory chips. Use Value: 3-ns t_pd and ±24-mA drive maintain setup/hold timing margins even with 40-pF net capacitance and 50-MHz address strobes.	Use Scenario: Fan-out of a single system clock to multiple peripherals (e.g., ADC, DAC, UART) requiring synchronized sampling. IC Role / Device Role / Timing Role: Low-skew 16-bit clock repeater with matched rise/fall drive strength to preserve duty cycle integrity. Use Value: Symmetrical I_OH/I_OL and rail-to-rail thresholds ensure <100-ps duty cycle distortion across all 16 outputs at 33 MHz.
Bus Interface Isolation	FPGA I/O Expansion
Use Scenario: Enabling/disabling data paths between two processor subsystems sharing a common 16-bit data bus. IC Role / Device Role / Timing Role: 3-state bidirectional bus driver controlled by separate OE signals per 4-bit segment. Use Value: Independent 1OE–4OE pins allow granular arbitration - e.g., CPU writes to lower byte while DMA reads upper byte simultaneously.	Use Scenario: Extending limited FPGA I/O count to drive external displays, sensors, or legacy parallel interfaces. IC Role / Device Role / Timing Role: Level-shifting buffer translating 3.3-V FPGA outputs to 1.8-V or 2.5-V peripheral logic levels. Use Value: 1.65–3.6-V V_CC range supports direct connection to mixed-voltage FPGA banks without external translators.

Memory Address Buffering

Clock Distribution

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

IC Role / Device Role / Timing Role: Unidirectional non-inverting buffer isolating MCU address outputs from load capacitance of parallel memory chips.

Use Value: 3-ns t_pd and ±24-mA drive maintain setup/hold timing margins even with 40-pF net capacitance and 50-MHz address strobes.

Use Scenario: Fan-out of a single system clock to multiple peripherals (e.g., ADC, DAC, UART) requiring synchronized sampling.

IC Role / Device Role / Timing Role: Low-skew 16-bit clock repeater with matched rise/fall drive strength to preserve duty cycle integrity.

Use Value: Symmetrical I_OH/I_OL and rail-to-rail thresholds ensure <100-ps duty cycle distortion across all 16 outputs at 33 MHz.

Bus Interface Isolation

FPGA I/O Expansion

Use Scenario: Enabling/disabling data paths between two processor subsystems sharing a common 16-bit data bus.

IC Role / Device Role / Timing Role: 3-state bidirectional bus driver controlled by separate OE signals per 4-bit segment.

Use Value: Independent 1OE–4OE pins allow granular arbitration - e.g., CPU writes to lower byte while DMA reads upper byte simultaneously.

Use Scenario: Extending limited FPGA I/O count to drive external displays, sensors, or legacy parallel interfaces.

IC Role / Device Role / Timing Role: Level-shifting buffer translating 3.3-V FPGA outputs to 1.8-V or 2.5-V peripheral logic levels.

Use Value: 1.65–3.6-V V_CC range supports direct connection to mixed-voltage FPGA banks without external translators.

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
SN74LVC16244ADL	Lower drive (±24 mA only at 3.3 V; degrades to ±12 mA at 2.5 V), higher t_pd (3.9 ns)	Suitable for lower-speed 2.5-V systems where power efficiency outweighs speed	Select if operating below 2.7 V and drive requirements are ≤±12 mA
74ALVC16244MTCX	TSSOP-48 (MTC) package instead of SSOP-48 (DL); identical electrical specs	Requires PCB redesign due to different footprint (5.0-mm vs. 6.2-mm width) and thermal pad absence	Select only when TSSOP thermal performance or pick-and-place compatibility is prioritized over existing DL-layout reuse

Compared with SN74LVC16244ADL and 74ALVC16244MTCX, the SN74ALVC16244ADL delivers superior speed consistency across 1.65–3.6 V and maintains full ±24-mA drive down to 3.0 V, making it optimal for mixed-voltage designs requiring guaranteed timing closure at 50+ MHz.

Availability

SN74ALVC16244ADL is available at Aetrix Electronics and suitable for memory subsystem design, clock tree fan-out, and FPGA I/O expansion requiring stable component supply and long-term industrial lifecycle support.

Supply support for SN74ALVC16244ADL 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 over 50 years of innovation in high-reliability interface ICs.

The SN74ALVC16244ADL belongs to TI's Widebus™ family, engineered specifically to enhance density and timing performance of 3-state memory-address drivers, clock drivers, and bus-oriented receivers/transmitters in space-constrained industrial and computing systems.

FAQ

What is the maximum operating frequency supported by the SN74ALVC16244ADL?

The SN74ALVC16244ADL does not specify a maximum clock frequency in its datasheet because it is a static buffer, not a clocked device. Its usable frequency limit is determined by propagation delay (t_pd ≤ 3 ns at 3.3 V) and load capacitance. For a 30-pF load, it reliably supports data rates up to ~150 Mbps in address/data bus applications, assuming proper PCB layout and termination.

Can the SN74ALVC16244ADL operate at 1.8 V and still meet all specifications?

Yes, the SN74ALVC16244ADL is fully specified from 1.65 V to 3.6 V. At 1.8 V, it delivers ≥±4 mA output drive, t_pd ≤ 3.7 ns, and maintains VIH = 1.17 V min / VIL = 0.63 V max - meeting all recommended operating conditions and AC/DC specs for 1.8-V logic interfaces.

How should unused input pins be handled on the SN74ALVC16244ADL?

All unused inputs on the SN74ALVC16244ADL must be tied to a valid logic level - either V_CC or GND - to prevent floating nodes that cause increased ICC, noise susceptibility, or erratic output behavior. TI recommends using pullup/pulldown resistors ≤10 kΩ for robustness against ESD and crosstalk.

Is the SN74ALVC16244ADL RoHS compliant and lead-free?

Yes, the SN74ALVC16244ADL is RoHS compliant and features lead-free NIPDAU (nickel/palladium/gold) terminal finish. Its MSL rating is Level-1 at 260°C peak reflow, and it meets JEDEC MO-153 mechanical standards for SSOP packages.

Does the SN74ALVC16244ADL support hot-swap or live-insertion?

The SN74ALVC16244ADL supports hot-swap operation due to its high latch-up immunity (>250 mA per JESD 17), low off-state leakage (±10 µA), and robust ESD protection (2000-V HBM). However, OE pins must be pulled up to V_CC via external resistors to guarantee 3-state behavior during power ramp-up - a requirement explicitly stated in the datasheet.

SN74ALVC16244ADL Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74ALVC

Package/Case:: 48-BSSOP (0.295", 7.50mm Width)

Packaging:: Bulk

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:: 24mA, 24mA

Voltage - Supply:: 1.65V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-SSOP

SN74ALVC16244ADL FAQ

1.How can I place an order for SN74ALVC16244ADL through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74ALVC16244ADL 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 SN74ALVC16244ADL reliable?

The price and inventory of SN74ALVC16244ADL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALVC16244ADL is usually 5 days.

3.What payment methods are accepted for SN74ALVC16244ADL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALVC16244ADL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74ALVC16244ADL?

SN74ALVC16244ADL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74ALVC16244ADL 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 SN74ALVC16244ADL?

For technical support, including SN74ALVC16244ADL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALVC16244ADL requirements.

6.How does Aetrix verify that SN74ALVC16244ADL is sourced from the original manufacturer or authorized distributors?

All SN74ALVC16244ADL 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 SN74ALVC16244ADL meets industry standards.

7.What is the process for return or replacement of SN74ALVC16244ADL?

All SN74ALVC16244ADL units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALVC16244ADL, 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 SN74ALVC16244ADL part is unused and in its original packaging.

Return procedure for SN74ALVC16244ADL:

1.Submit a request within 90 days.

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

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