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

Texas Instruments SN74LVT16244BDLG4

Name: SN74LVT16244BDLG4
Brand: Texas Instruments
SKU: SN74LVT16244BDLG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVT16244BDLG4

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: SN74LVT16244BDLG4.pdf

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

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Product details

Overview

SN74LVT16244BDLG4 from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, housed in a 48-pin SSOP (DL) package. It supports mixed-mode operation (5-V inputs/outputs with 3.3-V V_CC), delivers ±64 mA output drive per channel, and features I_off and power-up 3-state for hot insertion in backplane or bus interface applications.

For engineers reviewing the SN74LVT16244BDLG4 datasheet, SN74LVT16244BDLG4 pinout, SN74LVT16244BDLG4 application, or SN74LVT16244BDLG4 equivalent, key selection criteria include its 3.3-V ABT logic family compatibility, true 4×4-bit buffer partitioning, low ground bounce (<0.8 V), and support for unregulated battery operation down to 2.7 V.

Technical Context

The SN74LVT16244BDLG4 implements four independent 4-bit noninverting buffers, each with an active-low 3-state output-enable (OE) input. Its Advanced BiCMOS Technology (ABT) enables TTL-level signal interfacing while operating at 3.3 V, with guaranteed 5-V-tolerant inputs and outputs.

It integrates I_off circuitry to disable outputs during power-down and power-up 3-state logic that forces high-impedance states when V_CC is below 1.5 V - critical for hot-swap compliance and preventing bus contention in modular systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	2.7 V to 3.6 V - supports unregulated Li-ion or DC-DC converter rails without external regulation
I_OL/I_OH	64 mA / –32 mA - drives heavy capacitive loads (e.g., 50-pF buses) with fast edge rates
t_PLH/t_PHL	2.3 ns / 2.0 ns (typ, V_CC = 3.3 V) - enables >200-MHz data throughput in parallel interfaces
V_IL/V_IH	0.8 V / 2.0 V - compatible with TTL and LVTTL logic families without level shifters
V_O Tolerance	Input/output rated to 5.5 V - allows direct connection to 5-V control signals or legacy peripherals
Power-Up 3-State	Active below 1.5 V V_CC - eliminates bus conflicts during power sequencing in multi-rail systems
I_off	±100 µA max - blocks backflow current during hot insertion, protecting powered subsystems

Pinout & Package

SN74LVT16244BDLG4 uses a 48-pin SSOP (DL) package (JEDEC MO-153), 12.6 mm × 6.2 mm × 1.75 mm, with 0.5-mm lead pitch and gull-wing leads. Pin 1 is marked by a beveled corner.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE	Active-low output-enable control	Independently disables each 4-bit buffer group; tied high via pullup for default high-Z on power-up
1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4	Data inputs	True-buffered inputs accepting 5-V-tolerant signals; no inversion
1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4	Outputs	3-state, symmetrical drive outputs capable of sourcing/sinking up to 64 mA
V_CC (Pins 7, 18, 31, 42)	Supply	Four dedicated V_CC pins reduce IR drop and improve noise immunity across wide bus traces
GND (Pins 4, 10, 15, 27, 32, 44)	Ground	Six GND pins provide low-inductance return paths for high-speed switching currents

Key Features

Feature	Design Value
Mixed-mode voltage operation	5-V input/output tolerance with 3.3-V V_CC enables seamless interconnection between legacy 5-V and modern 3.3-V subsystems
Hot-insertion support	I_off and power-up 3-state eliminate bus contention and backdrive damage during live module replacement
Low ground bounce	V_OLP < 0.8 V ensures signal integrity on shared ground planes under heavy simultaneous switching
Widebus™ architecture	Optimized pinout and internal layout minimize skew and crosstalk across all 16 channels
Latch-up immunity	Exceeds 100 mA per JESD 78 Class II - robust against transient overvoltage events in industrial environments

Applications

Backplane Bus Interface	Memory Module Buffering
Use Scenario: Interfacing a 3.3-V FPGA or ASIC to a 5-V legacy backplane with 16-bit address/data lines. IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating and driving bidirectional bus signals with precise timing control via OE groups. Use Value: Eliminates need for discrete level shifters while maintaining sub-3-ns propagation delay and 64-mA drive strength per line.	Use Scenario: Driving DDR SDRAM address/control lines from a low-voltage memory controller in a compact embedded system. IC Role / Device Role / Timing Role: 16-bit address buffer with grouped OE control enabling bank-select isolation and reduced signal skew. Use Value: Four independent OE inputs allow staggered enable timing to minimize simultaneous switching noise on V_CC/GND rails.
Hot-Swappable I/O Carrier	Industrial PLC I/O Expansion
Use Scenario: Adding modular I/O cards to a powered industrial controller chassis without system shutdown. IC Role / Device Role / Timing Role: Hot-insertion–qualified buffer managing data path isolation during card insertion/removal sequences. Use Value: I_off and power-up 3-state prevent current backflow into powered backplane, meeting IEC 61000-4-2 ESD and MIL-STD-704 power integrity requirements.	Use Scenario: Expanding digital input/output capacity in a programmable logic controller with mixed 3.3-V logic and 24-V field-side interfaces. IC Role / Device Role / Timing Role: Level-translating buffer stage between isolated field I/O drivers and the 3.3-V CPU bus. Use Value: 5-V-tolerant inputs accept optocoupler outputs directly; 64-mA sink capability drives LED status indicators or relay drivers.

Backplane Bus Interface

Memory Module Buffering

Use Scenario: Interfacing a 3.3-V FPGA or ASIC to a 5-V legacy backplane with 16-bit address/data lines.

IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating and driving bidirectional bus signals with precise timing control via OE groups.

Use Value: Eliminates need for discrete level shifters while maintaining sub-3-ns propagation delay and 64-mA drive strength per line.

Use Scenario: Driving DDR SDRAM address/control lines from a low-voltage memory controller in a compact embedded system.

IC Role / Device Role / Timing Role: 16-bit address buffer with grouped OE control enabling bank-select isolation and reduced signal skew.

Use Value: Four independent OE inputs allow staggered enable timing to minimize simultaneous switching noise on V_CC/GND rails.

Hot-Swappable I/O Carrier

Industrial PLC I/O Expansion

Use Scenario: Adding modular I/O cards to a powered industrial controller chassis without system shutdown.

IC Role / Device Role / Timing Role: Hot-insertion–qualified buffer managing data path isolation during card insertion/removal sequences.

Use Value: I_off and power-up 3-state prevent current backflow into powered backplane, meeting IEC 61000-4-2 ESD and MIL-STD-704 power integrity requirements.

Use Scenario: Expanding digital input/output capacity in a programmable logic controller with mixed 3.3-V logic and 24-V field-side interfaces.

IC Role / Device Role / Timing Role: Level-translating buffer stage between isolated field I/O drivers and the 3.3-V CPU bus.

Use Value: 5-V-tolerant inputs accept optocoupler outputs directly; 64-mA sink capability drives LED status indicators or relay drivers.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16244ADLR	Lower drive (24 mA), 1.65–3.6 V V_CC, no 5-V tolerance	Not suitable for mixed 5-V/3.3-V systems; requires external level translation	Select only for pure 3.3-V or lower-voltage designs where cost and power efficiency outweigh drive strength needs
74ALVC16244PW	Same 24-mA drive, 1.65–3.6 V range, 5-V tolerant inputs only (not outputs)	Cannot drive 5-V loads; limited to input-side interfacing in hybrid systems	Choose when buffering 5-V sensor inputs into 3.3-V logic but not driving 5-V peripherals

Compared with SN74LVC16244ADLR and 74ALVC16244PW, the SN74LVT16244BDLG4 uniquely supports full 5-V bidirectional interfacing with higher drive strength and proven hot-swap reliability - making it the only option for legacy backplane upgrades requiring zero hardware redesign.

Availability

SN74LVT16244BDLG4 is available at Aetrix Electronics and suitable for backplane bus interface, memory module buffering, and hot-swappable I/O carrier applications requiring stable component supply, long-term industrial lifecycle support, and RoHS-compliant packaging.

Supply support for SN74LVT16244BDLG4 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-reliability interface ICs.

The SN74LVT16244BDLG4 belongs to TI's Widebus™ ABT logic family, engineered specifically for high-speed, mixed-voltage bus interfacing in telecom infrastructure, industrial automation, and computing backplanes.

FAQ

What is the maximum operating temperature range for the SN74LVT16244BDLG4?

The SN74LVT16244BDLG4 is specified for operation from –40°C to +85°C ambient temperature. This industrial-grade range ensures reliable performance in embedded controllers, network equipment, and factory automation systems where thermal management is constrained. The DL-package thermal impedance (θ_JA = 63°C/W) supports this rating under standard PCB copper pour conditions.

Does the SN74LVT16244BDLG4 support hot-plug insertion without external circuitry?

Yes, the SN74LVT16244BDLG4 supports hot insertion natively via integrated I_off and power-up 3-state circuitry. When V_CC is below 1.5 V, outputs remain in high-impedance state regardless of OE pin state. At power-up, outputs stay disabled until V_CC stabilizes - eliminating the need for external hot-swap controllers or sequencing logic in the SN74LVT16244BDLG4 design.

Can the SN74LVT16244BDLG4 drive 50-pF loads at 100 MHz?

Yes, the SN74LVT16244BDLG4 is characterized for CL = 50 pF and achieves t_PLH/t_PHL ≤ 3.7 ns (max) at V_CC = 3.3 V, supporting clean signal edges well beyond 100 MHz fundamental frequency. Its 64-mA drive strength and low output impedance ensure minimal rise/fall time degradation even with board trace capacitance - verified in the official SN74LVT16244BDLG4 switching characteristics table.

How many independent output-enable controls does the SN74LVT16244BDLG4 have?

The SN74LVT16244BDLG4 has four independent active-low output-enable inputs: 1OE, 2OE, 3OE, and 4OE. Each controls a separate 4-bit buffer section (e.g., 1OE enables Y1–Y4 driven by A1–A4), allowing granular bus segmentation, staggered timing, and partial system isolation - a key architectural feature confirmed in the SN74LVT16244BDLG4 function table and pinout diagram.

Is the SN74LVT16244BDLG4 pin-compatible with other packages in the LVT16244B family?

No - the SN74LVT16244BDLG4 (DL package, 48-pin SSOP) shares identical logic functionality and pin numbering with DGG (TSSOP) and DGV (TVSOP) variants, but mechanical dimensions, thermal characteristics, and soldering profiles differ. While electrical pinout is consistent across DL/DGG/DGV, PCB layout must be redesigned for each package; the SN74LVT16244BDLG4 cannot be substituted without footprint revision.

SN74LVT16244BDLG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVT

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

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

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:: 32mA, 64mA

Voltage - Supply:: 2.7V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-SSOP

SN74LVT16244BDLG4 FAQ

1.How can I place an order for SN74LVT16244BDLG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVT16244BDLG4 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 SN74LVT16244BDLG4 reliable?

The price and inventory of SN74LVT16244BDLG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT16244BDLG4 is usually 5 days.

3.What payment methods are accepted for SN74LVT16244BDLG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVT16244BDLG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74LVT16244BDLG4?

SN74LVT16244BDLG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVT16244BDLG4 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 SN74LVT16244BDLG4?

For technical support, including SN74LVT16244BDLG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT16244BDLG4 requirements.

6.How does Aetrix verify that SN74LVT16244BDLG4 is sourced from the original manufacturer or authorized distributors?

All SN74LVT16244BDLG4 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 SN74LVT16244BDLG4 meets industry standards.

7.What is the process for return or replacement of SN74LVT16244BDLG4?

All SN74LVT16244BDLG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT16244BDLG4, 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 SN74LVT16244BDLG4 part is unused and in its original packaging.

Return procedure for SN74LVT16244BDLG4:

1.Submit a request within 90 days.

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

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