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

Nexperia USA Inc. 74ALVT16244DGG,512

Name: 74ALVT16244DGG,512
Brand: Nexperia USA Inc.
SKU: 74ALVT16244DGG,512
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVT16244DGG,512

Manufacturer:: Nexperia USA Inc.

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 48-TFSOP (0.240", 6.10mm Width)

Datasheet:: 74ALVT16244DGG,512.pdf

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

Quantity:: RFQ Add To RFQ list

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Product details

Overview

74ALVT16244DGG,512 from Nexperia is a 16-bit non-inverting 3-state buffer/line driver in TSSOP48 package, operating from 2.3 V to 3.6 V supply, with overvoltage-tolerant inputs up to 5.5 V and bus-hold inputs eliminating external pull-ups. It supports flexible partitioning as four 4-bit, two 8-bit, or one 16-bit buffer, and is used in high-speed digital bus interfacing between mixed-voltage domains (e.g., 2.5 V logic driving 5 V backplanes).

For engineers reviewing the 74ALVT16244DGG,512 datasheet, 74ALVT16244DGG,512 pinout, 74ALVT16244DGG,512 application, or 74ALVT16244DGG,512 equivalent, key selection criteria include output drive strength at 2.5 V/3.3 V, propagation delay consistency across voltage rails, IOFF power-down behavior, bus-hold current specifications, and TSSOP48 thermal and routing constraints.

Technical Context

The device implements BiCMOS output stages for high-speed switching (typ. 1.5 ns tPLH at 3.3 V) and robust drive capability (±32 mA IOH/IOL), while integrating independent active-low output enables (1OE–4OE) per 4-bit group. Its bus-hold circuitry maintains stable logic states on unused inputs without external resistors, reducing BOM count and layout complexity.

IOFF protection ensures near-zero leakage (< ±100 µA) when VCC = 0 V, enabling live insertion and partial power-down operation. Input tolerance to 5.5 V allows direct interfacing with TTL and 5 V CMOS buses without level shifters, while latch-up immunity (>500 mA per JESD78 Class II Level B) supports industrial-grade reliability.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage	2.3 V to 3.6 V - supports dual-rail systems (2.5 V and 3.3 V logic domains)
Input voltage tolerance	Up to 5.5 V - enables direct connection to 5 V buses without level translation
Output drive (IOL/IOH)	24 mA / −8 mA at 2.3 V; 64 mA / −32 mA at 3.0 V - drives heavy capacitive loads and stubbed transmission lines
Propagation delay (tPLH/tPHL)	0.8–2.5 ns (VCC = 3.3 V) - meets sub-2 ns timing budgets in high-speed address/data buffering
Bus hold current (IBHL/IBHH)	±75 µA to ±140 µA (VCC = 3 V) - actively retains logic state on floating inputs, removing need for 10 kΩ pull-ups
IOFF leakage	< ±100 µA at VCC = 0 V - prevents back-driving powered-down sections during hot-swap or partial shutdown
Operating temperature	−40 °C to +85 °C - qualified for industrial ambient environments

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch, 1.2 mm max height - optimized for high-density PCB layouts with moderate thermal dissipation requirements.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE (pins 1, 48, 25, 24)	Active-low output enable	Each controls 4 outputs independently; HIGH forces corresponding Yn outputs into high-impedance state
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 grouped in sets of four; bus-hold enabled by default
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 mirroring respective An inputs; capable of sinking 64 mA or sourcing 32 mA
VCC (pins 7,18,31,42)	Power supply	Four distributed supply pins reduce IR drop and improve noise immunity across wide bus
GND (pins 4,10,15,21,28,34,39,45)	Ground reference	Eight ground pins provide low-inductance return paths and support simultaneous switching noise (SSN) control

Key Features

Feature	Design Value
Wide supply range (2.3–3.6 V)	Enables interoperability between 2.5 V ASICs/FPGAs and 3.3 V microcontrollers without voltage translation
Overvoltage-tolerant inputs (to 5.5 V)	Eliminates external clamping diodes when interfacing with legacy 5 V peripherals or test equipment
Integrated bus-hold circuitry	Reduces board space and assembly cost by removing eight 10 kΩ pull-up/pull-down resistors per device
IOFF partial power-down	Prevents current backflow into unpowered system sections during maintenance or modular power sequencing
Latch-up immunity >500 mA	Ensures robustness against transient overvoltage events in noisy industrial environments

Applications

PCI Bus Interface

Memory Module Buffering

Use Scenario: Isolating and driving 32-bit PCI data/address lines between 3.3 V host controller and mixed-voltage peripheral cards.

IC Role / Device Role / Timing Role: Non-inverting 3-state buffer with per-group OE control, providing signal integrity and timing margin for 33 MHz PCI clock domain.

Use Value: 1.5 ns typical propagation delay and 64 mA sink capability ensure setup/hold compliance across full trace lengths and temperature range.

Use Scenario: Driving DDR SDRAM address/control signals from a 2.5 V memory controller to multiple DIMM slots.

IC Role / Device Role / Timing Role: 16-bit line driver with bus-hold inputs, maintaining valid logic levels during memory initialization and refresh cycles.

Use Value: Bus-hold current (±130 µA) prevents floating inputs during power-up sequencing, avoiding spurious command decoding.

FPGA I/O Expansion

Industrial Backplane Interfacing

Use Scenario: Extending FPGA GPIO count to drive external sensors, displays, and actuators across a 100 mm PCB run.

IC Role / Device Role / Timing Role: Configurable 4-/8-/16-bit buffer with independent OE groups, enabling dynamic reconfiguration of I/O banks.

Use Value: Four separate OE pins allow time-multiplexed access to shared bus resources without contention or glitches.

Use Scenario: Level-shifting and buffering control signals between 3.3 V PLC CPU and 5 V field I/O modules on DIN-rail mounted backplanes.

IC Role / Device Role / Timing Role: Overvoltage-tolerant buffer with 5.5 V input rating, directly accepting 5 V logic without external components.

Use Value: Eliminates discrete level translators, reducing component count and improving long-term reliability in vibration-prone enclosures.

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
SN74ALVC16244DGGR	Lower drive (24 mA sink), no bus-hold, 1.65–3.6 V supply	Requires external pull-ups; unsuitable for floating-input scenarios	Select only if bus-hold is unnecessary and lower power consumption is prioritized
74LVT16244DGG,518	Same pinout/package; identical bus-hold and IOFF specs; slightly higher ICC (0.1 mA vs 0.06 mA)	Direct functional replacement with identical layout compatibility	Preferred for drop-in replacement where Nexperia's ALVT family qualification is required

Compared with SN74ALVC16244DGGR, the 74ALVT16244DGG,512 offers superior bus-hold functionality and higher drive strength, making it suitable for uncontrolled input environments; versus 74LVT16244DGG,518, it delivers tighter propagation delay matching and improved ESD robustness (2000 V HBM), critical for high-reliability industrial interfaces.

Availability

74ALVT16244DGG,512 is available at Aetrix Electronics and suitable for PCI bus interface, memory module buffering, FPGA I/O expansion, and industrial backplane interfacing requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature.

Supply support for 74ALVT16244DGG,512 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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions, with leadership in automotive and industrial standard products.

The 74ALVT series targets high-speed, mixed-voltage digital interfacing applications, emphasizing robustness, low-power operation, and compatibility with legacy and next-generation logic families.

FAQ

Does the 74ALVT16244DGG,512 support hot-swap operation?

Yes - its IOFF circuitry limits power-off leakage to ±100 µA when VCC = 0 V, preventing back-current flow into unpowered subsystems. This enables safe insertion/removal in live backplanes, provided OE pins are held inactive during transition and voltage ramp rates comply with datasheet limits (≤10 ms below 1.2 V).

Can the bus-hold feature be disabled?

No - bus-hold is permanently enabled on all data inputs (An) and cannot be disabled via configuration or external control. It operates automatically when VCC ≥ 2.3 V and VI is within 0.2 V of GND or VCC, providing ±75 µA to ±140 µA holding current depending on VCC and input voltage.

What is the maximum capacitive load this device can drive reliably?

The device is characterized up to 50 pF load capacitance (per output) with guaranteed timing (tPLH/tPHL ≤ 2.5 ns at 3.3 V). For heavier loads (>50 pF), propagation delay increases linearly (~0.02 ns/pF), and output rise/fall times degrade; derating is recommended above 75 pF unless using series termination or reduced edge rates.

How does the 74ALVT16244DGG,512 handle input voltages exceeding VCC?

Inputs tolerate up to 5.5 V regardless of VCC setting (2.3–3.6 V), thanks to integrated clamping diodes. Input clamping current is limited to −50 mA (IIK), and VI must remain within absolute maximum ratings (−0.5 V to +7.0 V); sustained overvoltage requires external current limiting to avoid exceeding IIK.

74ALVT16244DGG,512 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74ALVT

Package/Case:: 48-TFSOP (0.240", 6.10mm Width)

Packaging:: Tube

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:: 2.3V ~ 2.7V, 3V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

74ALVT16244DGG,512 FAQ

1.How can I place an order for 74ALVT16244DGG,512 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVT16244DGG,512 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 74ALVT16244DGG,512 reliable?

The price and inventory of 74ALVT16244DGG,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT16244DGG,512 is usually 5 days.

3.What payment methods are accepted for 74ALVT16244DGG,512?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVT16244DGG,512 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ALVT16244DGG,512?

74ALVT16244DGG,512 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVT16244DGG,512 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 74ALVT16244DGG,512?

For technical support, including 74ALVT16244DGG,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT16244DGG,512 requirements.

6.How does Aetrix verify that 74ALVT16244DGG,512 is sourced from the original manufacturer or authorized distributors?

All 74ALVT16244DGG,512 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 74ALVT16244DGG,512 meets industry standards.

7.What is the process for return or replacement of 74ALVT16244DGG,512?

All 74ALVT16244DGG,512 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT16244DGG,512, 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 74ALVT16244DGG,512 part is unused and in its original packaging.

Return procedure for 74ALVT16244DGG,512:

1.Submit a request within 90 days.

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

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