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

NXP Semiconductors 74ALVCH16244DL,118

Name: 74ALVCH16244DL,118
Brand: NXP Semiconductors
SKU: 74ALVCH16244DL,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVCH16244DL,118

Manufacturer:: NXP Semiconductors

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74ALVCH16244DL,118.pdf

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

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Product details

Overview

74ALVCH16244DL,118 from Nexperia is a 16-bit CMOS buffer/line driver with 3-state outputs, four independent output enables (1OE–4OE), bus hold circuitry on all inputs, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V supply, delivers ±24 mA drive at 3.0 V, and supports 50 Ω transmission line driving at 85 °C - used in high-density PCB interconnects for industrial control backplanes.

For engineers reviewing the 74ALVCH16244DL,118 datasheet, 74ALVCH16244DL,118 pinout, 74ALVCH16244DL,118 application, or 74ALVCH16244DL,118 equivalent, this device is selected for voltage-level translation between 1.8 V/2.5 V/3.3 V logic domains, hot-swap-capable bus isolation, and noise-immune data routing where floating input suppression is required without external resistors.

Technical Context

This device implements four independent 4-bit non-inverting buffers, each controlled by a dedicated active-low output enable (1OE–4OE). Each buffer group features bus hold circuitry that actively maintains valid logic levels on un-driven inputs, eliminating external pull resistors.

The IOFF circuit ensures all outputs enter high-impedance state during partial power-down, blocking backflow current when VCC = 0 V while inputs remain at up to 5.5 V - enabling safe operation in mixed-voltage, multi-rail systems with staggered power sequencing.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.2 V to 3.6 V - supports direct interface with 1.8 V, 2.5 V, and 3.3 V logic families without level shifters
Output Drive Current	±24 mA at VCC = 3.0 V - sufficient to drive 50 Ω transmission lines under worst-case temperature (85 °C)
Propagation Delay	1.0 ns (min) to 3.0 ns (max) at VCC = 3.0–3.6 V - enables sub-300 MHz data routing in synchronous bus applications
Bus Hold Input Current	±75 μA (typ) at VCC = 3.0 V - provides robust input biasing without external components, reducing BOM count and board area
IOFF Leakage	< 10 μA at VCC = 0 V - prevents damaging back-current flow during power sequencing or hot-plug events
Input Overvoltage Tolerance	Up to 5.5 V on data/control pins - allows safe interfacing with 5 V legacy peripherals in mixed-supply systems
ESD Protection	HBM > 2000 V, MM > 200 V - meets industrial-grade ESD robustness requirements per JESD22-A114/A115

Pinout & Package

TSSOP48 plastic thin shrink small outline package (SOT362-1), 48-pin, body width 6.1 mm, lead pitch 0.5 mm, designed for high-density surface-mount assembly with low-inductance multiple VCC/GND pins to suppress ground bounce.

Pin/Terminal	Circuit Role	Design Meaning
1OE, 2OE, 3OE, 4OE (Pins 1, 48, 25, 24)	Active-low output enable inputs	Each controls 4 outputs independently; HIGH disables corresponding Y-group into high-Z 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	All feature bus hold circuitry - automatically holds last valid logic state when floating
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)	Non-inverting buffered outputs	3-state capable; driven only when respective nOE is LOW; compatible with 50 Ω trace impedance
VCC (Pins 7, 18, 31, 42)	Power supply	Four distributed supply pins minimize IR drop and switching noise across wide bus
GND (Pins 4, 10, 15, 21, 28, 34, 39, 45)	Ground reference	Eight ground pins reduce ground bounce and improve signal integrity in high-speed 16-bit paths

Key Features

Feature	Design Value
MultiByte flow-through pinout	Input/output pairs aligned across package edges simplify PCB routing and reduce crosstalk in parallel bus layouts
IOFF partial power-down	Outputs disable safely when VCC = 0 V, preventing reverse current flow during power sequencing or hot-swap operations
Integrated bus hold	Eliminates need for 16 external pull-up/down resistors - reduces component count, layout area, and assembly cost
Overvoltage-tolerant inputs	Withstands 5.5 V input signals while powered from 1.2–3.6 V - enables interoperability with 5 V peripherals without clamping diodes
Low-noise power distribution	Four VCC and eight GND pins minimize simultaneous switching noise and ground bounce in 16-bit data transfers

Applications

Industrial Backplane Interconnect

Hot-Swappable Module Interface

Use Scenario: Routing address/data signals between CPU module and peripheral cards in modular PLC chassis with shared backplane.

IC Role / Device Role / Timing Role: 16-bit non-inverting buffer isolating card-side logic from backplane, with per-lane enable control for selective card activation.

Use Value: Bus hold prevents floating inputs during card insertion/removal; IOFF blocks backfeed when card is unpowered; 3.3 V compatibility matches modern controller I/O.

Use Scenario: Enabling/disabling communication lanes between host controller and hot-pluggable sensor modules in factory automation gateways.

IC Role / Device Role / Timing Role: Directionless signal repeater with independent OE control per 4-bit lane, supporting dynamic lane allocation and fault containment.

Use Value: ±24 mA drive sustains signal integrity over 15 cm backplane traces; 5.5 V input tolerance accommodates legacy sensor outputs without level shifters.

Low-Power Embedded Memory Interface

Multi-Voltage Logic Translation

Use Scenario: Driving SRAM or Flash memory data/address buses in battery-powered edge nodes operating at 1.8 V core but requiring 3.3 V I/O swing.

IC Role / Device Role / Timing Role: Level-shifting buffer with 1.2–3.6 V supply range, translating between MCU GPIO and memory device I/O voltages.

Use Value: Sub-3 ns propagation delay preserves timing margins; bus hold eliminates pull resistors on unused memory address lines, saving power and space.

Use Scenario: Interfacing 2.5 V FPGA I/O banks with 3.3 V peripheral controllers in test equipment mainboards.

IC Role / Device Role / Timing Role: Bidirectional voltage translator using separate OE control for upstream/downstream direction, with no external biasing.

Use Value: Overvoltage-tolerant inputs accept 3.3 V signals while powered from 2.5 V; CMOS low-power design keeps static current below 40 μA at 25 °C.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74ALVCH16244DGGR	TI part in same TSSOP48 package; identical pinout and bus hold; IOFF not specified in datasheet	Lacks documented IOFF protection - unsuitable for partial power-down or hot-swap use cases requiring back-current blocking	Select only if system uses full power cycling and does not require IOFF compliance
74LVC16244APAG	IDT (now Renesas) part in TSSOP48; no bus hold; IOFF supported; max VCC = 3.6 V	Requires external pull resistors on all inputs; higher input leakage (5 μA vs. 0.1 μA typical for ALVCH)	Choose when bus hold is unnecessary and lower cost outweighs added BOM complexity

Compared with SN74ALVCH16244DGGR and 74LVC16244APAG, the 74ALVCH16244DL,118 uniquely combines bus hold, IOFF, and 5.5 V input tolerance in a single 16-bit buffer - making it the only option for hot-swap-capable, floating-input-resilient, multi-rail industrial backplanes.

Availability

74ALVCH16244DL,118 is available at Aetrix Electronics and suitable for industrial backplane interconnects, hot-swappable module interfaces, low-power embedded memory interfaces, and multi-voltage logic translation requiring stable component supply and long-term manufacturability.

Supply support for 74ALVCH16244DL,118 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, reliable logic, analog, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in industrial, automotive, and consumer applications.

The 74ALVCH series targets high-speed, low-voltage digital interfacing in space-constrained and thermally demanding environments - emphasizing bus integrity, power sequencing safety, and mixed-voltage interoperability.

FAQ

Does 74ALVCH16244DL,118 support 1.8 V operation?

Yes. The device is fully specified from 1.2 V to 3.6 V supply voltage, including guaranteed performance at 1.8 V per JEDEC JESD8-7. At 1.8 V, it delivers ±6 mA output drive and maintains 2.8 ns typical propagation delay with 30 pF load, making it suitable for low-power portable and battery-operated systems.

What is the function of the bus hold circuitry?

The bus hold circuitry actively biases each data input to its last valid logic state (HIGH or LOW) when left floating, drawing only ±75 μA typical at 3.0 V. This eliminates the need for external pull-up or pull-down resistors, reducing component count, PCB area, and potential signal integrity issues caused by resistor parasitics.

Can 74ALVCH16244DL,118 be used in hot-swap applications?

Yes. Its IOFF circuitry ensures outputs go high-impedance and block reverse current flow even when VCC = 0 V, while inputs tolerate up to 5.5 V. This enables safe insertion/removal in live backplanes - confirmed by absolute maximum ratings and functional testing per JESD78 Class II Level B latch-up immunity (>100 mA).

How many independent enable controls does this device provide?

It provides four independent active-low output enables: 1OE (Pin 1), 2OE (Pin 48), 3OE (Pin 25), and 4OE (Pin 24), each controlling a distinct 4-bit output group (1Y0–1Y3, 2Y0–2Y3, etc.). This enables granular bus segmentation, lane-level power gating, and fault-isolated data routing in complex interconnect architectures.

74ALVCH16244DL,118 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74ALVCH

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:: 1.2V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-SSOP

74ALVCH16244DL,118 FAQ

1.How can I place an order for 74ALVCH16244DL,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVCH16244DL,118 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 74ALVCH16244DL,118 reliable?

The price and inventory of 74ALVCH16244DL,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16244DL,118 is usually 5 days.

3.What payment methods are accepted for 74ALVCH16244DL,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16244DL,118 transactions.

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4.How is shipping managed for 74ALVCH16244DL,118?

74ALVCH16244DL,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVCH16244DL,118 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 74ALVCH16244DL,118?

For technical support, including 74ALVCH16244DL,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16244DL,118 requirements.

6.How does Aetrix verify that 74ALVCH16244DL,118 is sourced from the original manufacturer or authorized distributors?

All 74ALVCH16244DL,118 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 74ALVCH16244DL,118 meets industry standards.

7.What is the process for return or replacement of 74ALVCH16244DL,118?

All 74ALVCH16244DL,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16244DL,118, 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 74ALVCH16244DL,118 part is unused and in its original packaging.

Return procedure for 74ALVCH16244DL,118:

1.Submit a request within 90 days.

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

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