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

NXP Semiconductors 74LVT16244BBX,518

Name: 74LVT16244BBX,518
Brand: NXP Semiconductors
SKU: 74LVT16244BBX,518
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74LVT16244BBX,518

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 60-XFQFN Dual Rows, Exposed Pad

Datasheet:: 74LVT16244BBX,518.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:4,900

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Product details

Overview

74LVT16244BBX,518 from NXP Semiconductors is a 16-bit non-inverting buffer/line driver with 3-state outputs, designed for LVTTL bus interface applications. It operates from 2.7 V to 3.6 V, supports ±24 mA output drive, features 3.3 ns typical propagation delay at V_CC = 3.3 V, and is housed in a 48-pin TSSOP package. It is used in high-speed backplane and motherboard data bus buffering.

For engineers reviewing the 74LVT16244BBX,518 datasheet, 74LVT16244BBX,518 pinout, 74LVT16244BBX,518 application, or 74LVT16244BBX,518 equivalent, key selection criteria include output drive strength, 3-state timing control, supply voltage compatibility with mixed-voltage systems, and thermal performance in dense PCB layouts.

Technical Context

This device implements four independent 4-bit non-inverting buffers, each with separate Output Enable (OE) control. All outputs are 3-state capable and feature bus-hold circuitry to maintain logic state when inputs are floating. Input thresholds are compatible with both LVTTL and TTL logic families.

It uses advanced BiCMOS technology to achieve high speed with low power consumption. The 3-state outputs support hot insertion and live insertion into powered-backplane systems, and the device includes ESD protection exceeding 2 kV HBM.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.7 V to 3.6 V - Enables interoperability with 3.3 V LVTTL and mixed-voltage I/O domains.
Propagation Delay	3.3 ns (typ) at V_CC = 3.3 V - Supports >200 MHz bus operation with tight timing margins.
Output Drive	±24 mA - Sufficient to drive 50 Ω transmission lines or 10+ LVTTL loads without signal degradation.
Input Threshold	V_IL = 0.8 V, V_IH = 2.0 V - Ensures reliable recognition of TTL- and LVTTL-level inputs.
ESD Rating	2 kV HBM - Provides robustness during board handling and system integration.
Operating Temp	−40 °C to +85 °C - Qualified for industrial temperature range operation.

Pinout & Package

Package: 48-pin Thin Shrink Small Outline Package (TSSOP), 0.25 mm pitch, body width 6.1 mm, JEDEC MO-153 compliant.

Pin/Terminal	Circuit Role	Design Meaning
1A–16A	Inputs	16 buffered input signals, each mapped to corresponding Y output.
1Y–16Y	Outputs	16 non-inverting 3-state outputs, active-high when OE is low.
1OE–4OE	Output Enables	Four independent active-low enables controlling groups of four outputs each.
V_CC, GND	Power/Termination	Single 3.3 V supply rail and ground reference; no dual-supply or biasing required.

Key Features

Feature	Design Value
Bus-hold inputs	Maintains valid logic level on un-driven inputs, eliminating need for external pull-up/down resistors.
Hot-insertion capability	3-state outputs remain high-impedance during power-up/down sequences, preventing bus contention.
Flow-through pinout	Input and output pins arranged to minimize PCB trace crossovers and reduce layout complexity.
LVTTL-compatible I/O	Supports direct connection to 3.3 V microcontrollers, FPGAs, and ASICs without level-shifting.

Applications

High-Speed Backplane Buffering

Industrial PLC I/O Expansion

Use Scenario: Buffering parallel address/data buses across multi-slot VME or CompactPCI backplanes.

IC Role / Device Role / Timing Role: Non-inverting line driver providing signal integrity, fanout extension, and isolation between slots.

Use Value: ±24 mA drive ensures clean edge transitions over 15 cm traces; 3.3 ns delay preserves setup/hold timing budgets.

Use Scenario: Interfacing FPGA-based controller modules with legacy 24 V digital I/O cards in modular PLC racks.

IC Role / Device Role / Timing Role: Level-translating buffer enabling 3.3 V logic to drive 5 V-tolerant inputs while maintaining noise immunity.

Use Value: LVTTL input thresholds and 3.3 V supply allow seamless integration without external level shifters.

Telecom Line Card Interface

Test Equipment Signal Conditioning

Use Scenario: Driving parallel control signals (e.g., configuration, reset, status) between DSP and peripheral ASICs on telecom line cards.

IC Role / Device Role / Timing Role: Low-skew, 3-state buffer supporting concurrent read/write operations on shared control buses.

Use Value: Independent OE pins enable precise timing control of signal gating per functional block.

Use Scenario: Conditioning digital stimulus and response signals in automated test equipment (ATE) channel cards.

IC Role / Device Role / Timing Role: Fanout buffer isolating pattern generator outputs from multiple DUT inputs.

Use Value: Bus-hold inputs prevent floating states during test sequence pauses, ensuring deterministic behavior.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16244ADGGR	Lower drive (±24 mA same), but wider V_CC range (1.65–3.6 V); no bus-hold.	Supports 1.8 V logic domains; lacks bus-hold, requiring external termination.	Select if operating below 2.7 V or integrating with 1.8 V FPGAs.
74ALVCH16244PAG	Higher speed (2.3 ns), same 3.3 V supply, but no bus-hold and higher ICC.	Better for ultra-low-latency paths; requires tighter thermal management.	Select when propagation delay <3 ns is critical and board space allows extra decoupling.

Compared with SN74LVC16244ADGGR and 74ALVCH16244PAG, the 74LVT16244BBX,518 uniquely combines bus-hold functionality, industrial temperature rating, and proven backplane reliability-making it preferred for legacy-compliant, maintenance-critical systems.

Availability

74LVT16244BBX,518 is available at Aetrix Electronics and suitable for high-speed backplane buffering, industrial PLC I/O expansion, and telecom line card interface applications requiring stable component supply and long-term lifecycle assurance.

Supply support for 74LVT16244BBX,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

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The 74LVT logic family targets high-speed, low-voltage bus interface applications where signal integrity, timing predictability, and mixed-voltage interoperability are essential.

FAQ

Is the 74LVT16244BBX,518 pin-compatible with standard 74-series 16-bit buffers?

No. While functionally similar to 74LVC16244 and 74ALVCH16244, the 74LVT16244BBX,518 uses a unique 48-pin TSSOP pinout optimized for flow-through routing. Pin assignments for inputs, outputs, and OE controls differ across families; direct replacement requires PCB redesign.

Does this device require external pull-up or pull-down resistors on inputs?

No. The 74LVT16244BBX,518 integrates bus-hold circuitry on all inputs, which actively maintains the last-valid logic state when inputs are un-driven. This eliminates the need for external termination resistors in most applications.

Can the 74LVT16244BBX,518 operate at 2.5 V supply?

No. The absolute minimum supply voltage is 2.7 V per the datasheet. Operation below 2.7 V risks incorrect logic thresholds, increased propagation delay, and potential output instability. It is not rated or characterized for 2.5 V use.

What is the maximum clock frequency supported for data bus applications?

The device does not have an internal clock. As a combinational buffer, its usable frequency depends on system-level timing: with 3.3 ns propagation delay and proper PCB layout, it reliably supports data rates up to 200 MHz on controlled-impedance buses with ≤15 cm trace lengths.

74LVT16244BBX,518 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74LVT

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

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:: 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-HXQFN (4x6)

74LVT16244BBX,518 FAQ

1.How can I place an order for 74LVT16244BBX,518 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74LVT16244BBX,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 74LVT16244BBX,518 reliable?

The price and inventory of 74LVT16244BBX,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT16244BBX,518 is usually 5 days.

3.What payment methods are accepted for 74LVT16244BBX,518?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVT16244BBX,518 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74LVT16244BBX,518?

74LVT16244BBX,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74LVT16244BBX,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 74LVT16244BBX,518?

For technical support, including 74LVT16244BBX,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT16244BBX,518 requirements.

6.How does Aetrix verify that 74LVT16244BBX,518 is sourced from the original manufacturer or authorized distributors?

All 74LVT16244BBX,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 74LVT16244BBX,518 meets industry standards.

7.What is the process for return or replacement of 74LVT16244BBX,518?

All 74LVT16244BBX,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT16244BBX,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 74LVT16244BBX,518 part is unused and in its original packaging.

Return procedure for 74LVT16244BBX,518:

1.Submit a request within 90 days.

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

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