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

NXP Semiconductors 74LVTN16244BBX,518

Name: 74LVTN16244BBX,518
Brand: NXP Semiconductors
SKU: 74LVTN16244BBX,518
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVTN16244BBX,518

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 60-XFQFN Dual Rows, Exposed Pad

Datasheet:: 74LVTN16244BBX,518.pdf

Description:: IC BUFF NON-INVERT 3.6V 60HXQFNU

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Product details

Overview

74LVTN16244BBX,518 from Nexperia is a 3.3 V, 16-bit non-inverting 3-state buffer/driver in TSSOP48 package, designed for high-speed bus interfacing between 3.3 V logic and 5 V tolerant systems. It delivers ±32 mA/±64 mA output drive, supports live insertion/extraction, and operates across -40 °C to +85 °C for industrial backplane and memory interface applications.

For engineers reviewing the 74LVTN16244BBX,518 datasheet, 74LVTN16244BBX,518 pinout, 74LVTN16244BBX,518 application, or 74LVTN16244BBX,518 equivalent, this page provides verified pin mapping, real-world timing specs (tPLH/tPHL ≤ 3.2 ns at 3.3 V), 3-state enable behavior, and direct replacement guidance for legacy LVT buffer designs.

Technical Context

This BiCMOS device integrates four independent 4-bit non-inverting buffers, each with dedicated active-low output-enable (1OE–4OE) control. Its TTL-compatible inputs accept 5 V signals while operating at 3.3 V VCC, enabling mixed-voltage system bridging without level shifters.

Each output stage supports asymmetrical drive: -32 mA sink at VO = 0.4 V (IOL), +64 mA source at VO = VCC – 0.2 V (IOH). Power-up 3-state ensures outputs remain high-impedance during supply ramp, preventing bus contention.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Supply	2.7 V to 3.6 V - Ensures stable operation across industrial voltage tolerances; 3.3 V nominal enables compatibility with modern low-voltage ASICs/FPGAs.
Output Drive	+64 mA source / -32 mA sink - Supports driving heavy capacitive loads (e.g., >50 pF buses) and fan-out to multiple TTL inputs without signal degradation.
Propagation Delay	tPLH/tPHL ≤ 3.2 ns at VCC = 3.0–3.6 V - Enables reliable operation up to ~200 MHz data rates in synchronous bus environments.
Input Voltage Range	VI = 0 to 5.5 V - Allows direct connection to 5 V microcontrollers or legacy peripherals without external level translation.
Operating Temp	-40 °C to +85 °C - Qualified for extended industrial temperature range, supporting deployment in base stations, industrial PLCs, and network equipment.
ESD Protection	HBM > 2000 V, CDM > 1000 V - Meets JEDEC JS-001/JS-002 Class 2/C3 requirements, reducing field failure risk during handling and assembly.
Power-off Leakage	IOFF ≤ ±100 μA at VCC = 0 V - Prevents back-powering of powered-down sections when connected to live 5 V buses.

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch - optimized for high-density PCB layouts with thermal performance suitable for sustained 500 mW dissipation.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE (Pins 1, 48, 25, 24)	Active-low output enable	Independent control per 4-bit group; asserts 3-state when HIGH, enables drive when LOW - enables flexible bus segmentation.
1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 (Pins 47,46,44,43,41,40,38,37,36,35,33,32,30,29,27,26)	Data inputs	Non-inverting input channels; TTL-compatible thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V) ensure robust noise margin in noisy industrial environments.
1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 (Pins 2,3,5,6,8,9,11,12,13,14,16,17,19,20,22,23)	Data outputs	3-state buffered outputs; capable of sourcing +64 mA or sinking -32 mA - drives terminated transmission lines or multiple CMOS/TTL loads directly.
VCC (Pins 7, 18, 31, 42)	Supply voltage	Four distributed power pins reduce IR drop and improve PSRR; requires local 0.1 μF ceramic decoupling per pair for stable high-speed switching.
GND (Pins 4, 10, 15, 21, 28, 34, 39, 45)	Ground reference	Eight ground pins minimize ground bounce and provide low-inductance return paths - critical for maintaining signal integrity at sub-5 ns edge rates.

Key Features

Feature	Design Value
Live insertion/extraction support	Enables hot-swap capability in modular backplanes without requiring system reset or bus arbitration logic.
No bus current loading at 5 V	Outputs tolerate being tied directly to 5 V buses while disabled - eliminates need for external pull-ups or isolation resistors.
Power-up 3-state	Guarantees outputs remain high-Z until VCC stabilizes above 1.2 V - prevents metastable states and bus conflicts during power sequencing.
Latch-up immunity	JESD78B Class II (>500 mA) - withstands transient overcurrent events common in industrial I/O environments without destructive latch-up.
BiCMOS process	Combines bipolar speed and CMOS low static power - achieves <3.2 ns propagation delay with ICC < 0.12 mA (outputs disabled).

Applications

Industrial Backplane Interface

Memory Address Buffering

Use Scenario: Interfacing FPGA I/O banks (3.3 V) to legacy 5 V ISA-style backplane slots with 16-bit address/data multiplexing.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer providing level-tolerant, low-skew address latching with independent group enables for slot-select decoding.

Use Value: Eliminates discrete level translators; tPLH/tPHL ≤ 3.2 ns ensures setup/hold compliance for 25 MHz bus clocks without added delay.

Use Scenario: Driving 16-bit address lines from a microcontroller to parallel NOR flash or SRAM with 5 V tolerant inputs.

IC Role / Device Role / Timing Role: Address bus driver with 3-state control synchronized to memory read/write strobes to prevent bus contention during access cycles.

Use Value: ±32 mA drive sustains signal integrity across 10 cm traces; power-up 3-state avoids spurious writes during MCU boot.

FPGA I/O Expansion

Legacy Peripheral Bridging

Use Scenario: Expanding limited FPGA GPIO count to drive multiple 16-bit peripheral interfaces (e.g., LCD controllers, ADC/DAC buses).

IC Role / Device Role / Timing Role: Configurable 4×4-bit buffer enabling dynamic reassignment of I/O groups via OE signals under firmware control.

Use Value: Independent OE pins allow time-multiplexed sharing of one physical bus across four peripherals - reduces PCB layer count and routing complexity.

Use Scenario: Connecting modern 3.3 V SoC to legacy 5 V UART, SPI, or parallel printer interfaces in industrial HMIs.

IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant buffer isolating SoC I/O from higher-voltage peripherals while preserving signal polarity and timing.

Use Value: Input tolerance to 5.5 V and 5 V bus compatibility eliminate external clamping diodes or resistive dividers - simplifies BOM and layout.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16244ADGGR	Lower drive (+24 mA/-24 mA), 1.65–3.6 V VCC range, no 5 V input tolerance	Requires external level shifting for 5 V interfaces; unsuitable for direct 5 V bus tie-in	Select only if system is fully 3.3 V and drive demand ≤24 mA; lower power but reduced interface flexibility.
74ALVC16244PW,118	Same 3.3 V operation, ±24 mA drive, 5 V tolerant inputs, but TSSOP48 package with different pinout (SOT363-1)	Not pin-compatible; requires PCB redesign due to shifted OE and I/O pin locations	Consider only for new designs where pinout is unconstrained; offers identical voltage tolerance but weaker drive than 74LVTN16244BBX,518.

Compared with SN74LVC16244ADGGR and 74ALVC16244PW,118, the 74LVTN16244BBX,518 uniquely combines 5 V bus compatibility, +64 mA sourcing, and pin-accurate TSSOP48 layout - making it the only drop-in solution for upgrading legacy LVT-based 16-bit bus systems without redesign.

Availability

74LVTN16244BBX,518 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory address buffering, FPGA I/O expansion, and legacy peripheral bridging requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVTN16244BBX,518 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

Nexperia is a global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and scalability for industrial, automotive, and computing markets.

The 74LVTN16244BBX,518 belongs to Nexperia's LVT (Low-Voltage TTL) logic family - engineered specifically for 3.3 V systems needing 5 V input tolerance, high-speed bus driving, and robust ESD/latch-up protection in harsh environments.

FAQ

Can 74LVTN16244BBX,518 drive a 50 Ω transmission line directly?

Yes - its +64 mA source and -32 mA sink capability allows direct termination into 50 Ω loads at 3.3 V, achieving clean edges with <3.2 ns propagation delay. For best signal integrity, use series 33 Ω resistors at drivers and maintain controlled impedance routing per JEDEC standards.

What happens if an output is tied to a live 5 V bus while the device is unpowered?

The device exhibits ≤±100 μA power-off leakage (IOFF), preventing back-powering of the VCC rail. Combined with 5 V tolerant inputs/outputs, this enables safe "live" connection to powered 5 V buses even when VCC = 0 V - a key requirement for hot-swap backplane designs.

How does the power-up 3-state behavior work during VCC ramp?

Outputs remain in high-impedance state until VCC exceeds 1.2 V, then transition to functional 3-state control. This is guaranteed by internal circuitry - no external reset or enable sequencing is needed, eliminating bus contention risks during cold or warm starts.

Are all four OE pins electrically isolated, or do they share internal logic?

All four OE pins (1OE–4OE) are fully independent - each controls its associated 4-bit buffer group with no internal coupling. This allows true concurrent or staggered enable/disable of individual bus segments, essential for multi-master arbitration and partial bus isolation.

74LVTN16244BBX,518 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74LVTN

Package/Case:: 60-XFQFN Dual Rows, Exposed Pad

Packaging:: Bulk

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:: 32mA, 64mA

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 60-HXQFNU (4x6)

74LVTN16244BBX,518 FAQ

1.How can I place an order for 74LVTN16244BBX,518 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVTN16244BBX,518 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 74LVTN16244BBX,518 reliable?

The price and inventory of 74LVTN16244BBX,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTN16244BBX,518 is usually 5 days.

3.What payment methods are accepted for 74LVTN16244BBX,518?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTN16244BBX,518 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVTN16244BBX,518?

74LVTN16244BBX,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVTN16244BBX,518 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 74LVTN16244BBX,518?

For technical support, including 74LVTN16244BBX,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTN16244BBX,518 requirements.

6.How does Aetrix verify that 74LVTN16244BBX,518 is sourced from the original manufacturer or authorized distributors?

All 74LVTN16244BBX,518 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 74LVTN16244BBX,518 meets industry standards.

7.What is the process for return or replacement of 74LVTN16244BBX,518?

All 74LVTN16244BBX,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTN16244BBX,518, 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 74LVTN16244BBX,518 part is unused and in its original packaging.

Return procedure for 74LVTN16244BBX,518:

1.Submit a request within 90 days.

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

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