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

onsemi 74ALVC16244MTDX

Name: 74ALVC16244MTDX
Brand: onsemi
SKU: 74ALVC16244MTDX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74ALVC16244MTDX

Manufacturer:: onsemi

Category:: Buffers, Drivers, Receivers, Transceivers

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

Datasheet:: 74ALVC16244MTDX.pdf

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

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Product details

Overview

74ALVC16244MTDX from onsemi is a low-voltage 16-bit non-inverting buffer/line driver with 3-state outputs, designed for memory and address bus driving, clock distribution, and bidirectional bus interfacing. It operates from 1.65 V to 3.6 V V_CC, supports 3.6 V tolerant I/O, delivers ≤3.0 ns propagation delay at 3.3 V, and features nibble-level (4-bit) independent 3-state control via four OE inputs.

For engineers reviewing the 74ALVC16244MTDX datasheet, pinout, applications, or equivalent options, key selection criteria include V_CC operating range, 3.6 V I/O tolerance, propagation delay vs. supply voltage, 3-state enable timing, and TSSOP-48 package compatibility with high-density PCB layouts.

Technical Context

The 74ALVC16244MTDX implements sixteen independent CMOS buffer stages grouped into four 4-bit nibbles, each with dedicated active-low output-enable (OE1–OE4) control. Its advanced CMOS fabrication enables high-speed switching while maintaining sub-40 µA quiescent current at 3.6 V.

It supports live insertion and withdrawal via power-off high-impedance I/O and patented noise/EMI reduction circuitry. Input leakage remains ≤±5 µA and 3-state output leakage ≤±10 µA across 0–3.6 V, ensuring signal integrity in mixed-voltage systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - Enables interoperability with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters.
I/O Voltage Tolerance	Up to 3.6 V - Allows safe connection to higher-voltage buses or legacy 3.3 V peripherals while powered from lower V_CC.
t_PD (max)	3.0 ns @ 3.3 V - Supports >300 MHz data rates in address/data buffering applications with tight timing margins.
t_PZH/t_PHZ (max)	4.0 ns @ 3.3 V - Ensures fast, predictable bus turnaround in bidirectional communication protocols.
I_OH/I_OL	±24 mA @ 3.0 V - Drives standard 50 Ω transmission lines or multiple CMOS loads without external buffers.
Input Capacitance	6 pF @ 3.3 V - Minimizes capacitive loading on upstream drivers and preserves signal edge rate in high-speed routing.
Quiescent ICC	40 µA @ 3.6 V - Reduces static power in always-on subsystems such as standby clock trees or memory retention paths.

Pinout & Package

74ALVC16244MTDX is housed in a 48-pin Thin Shrink Small Outline Package (TSSOP), case 948BQ, measuring 12.5 mm × 6.1 mm with 0.5 mm pitch. The package is Pb-free and RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
OEn (OE1–OE4)	Active-low 3-state enable input per nibble	Four independent controls allow selective gating of I/O groups (I0–I3/O0–O3, etc.), enabling partial bus isolation without full device disable.
I0–I15	Buffer input terminals	Non-inverting inputs accept 1.65–3.6 V logic levels; tolerate up to 3.6 V regardless of V_CC, simplifying mixed-supply interface design.
O0–O15	Buffer output terminals	3-state outputs drive buses directly; enter high-Z when corresponding OEn = HIGH, preventing contention during bus arbitration.
NC	No-connect terminal	Internally unconnected; must remain unpopulated and unconnected on PCB to avoid parasitic coupling or EMI.
V_CC, GND	Power supply and ground pins	Multiple V_CC/GND pairs distributed across package reduce simultaneous switching noise and improve power integrity.

Key Features

Feature	Design Value
Nibble-level 3-state control	Four independent OE inputs enable granular bus partitioning-e.g., isolate memory address nibbles while keeping data lines active.
3.6 V tolerant I/O	Eliminates need for external level translators when interfacing with 3.3 V peripherals while operating from 1.8 V V_CC, reducing BOM count and layout area.
Power-off high-impedance I/O	Inputs and outputs default to high-Z during power-up/down sequences, preventing back-driving or latch-up in hot-swap or modular systems.
Patented noise/EMI reduction	Integrated slew-rate control and internal filtering suppress switching noise, easing EMC compliance in dense digital systems without added ferrites or shielding.
JEDEC JED98 latch-up immunity	Guarantees robust operation under transient overvoltage conditions common in industrial environments, eliminating need for external protection circuits.

Applications

Memory Address Buffering	Low-Voltage Clock Distribution
Use Scenario: Driving 16-bit address bus between a 1.8 V microcontroller and 3.3 V SRAM or Flash memory. IC Role / Device Role / Timing Role: Non-inverting buffer with 3.6 V tolerant outputs ensures reliable address latching despite V_CC mismatch; nibble control allows dynamic segment disabling. Use Value: Eliminates level-shifter ICs and reduces propagation delay to ≤3.0 ns, preserving setup/hold timing margins at 100+ MHz bus speeds.	Use Scenario: Distributing a 50 MHz system clock from a 2.5 V oscillator to multiple 1.8 V logic blocks. IC Role / Device Role / Timing Role: Low-skew, low-jitter buffer stage with matched t_PHL/t_PLH ensures synchronous clock arrival across fanout branches. Use Value: 6 pF input capacitance minimizes oscillator load; 3-state capability permits clock gating without signal reflection or termination disruption.
Hot-Swappable Module Interface	Industrial Bus Transceiver Support
Use Scenario: Enabling live insertion of a peripheral card into a powered-backplane system with 3.3 V signaling. IC Role / Device Role / Timing Role: Acts as I/O isolation barrier; power-off high-Z behavior prevents backfeeding during card insertion/removal sequences. Use Value: Meets JEDEC JED98 latch-up immunity and >2000 V HBM ESD rating, ensuring reliability during repeated hot-plug cycles without external protection.	Use Scenario: Supporting bidirectional data transfer on an isolated CAN or RS-485 transceiver control interface. IC Role / Device Role / Timing Role: Buffers direction-control and enable signals between MCU GPIOs and transceiver logic inputs, isolating noise-sensitive analog sections. Use Value: 3.6 V I/O tolerance accommodates transceiver logic thresholds; 4.0 ns max t_PZH enables precise timing alignment with transceiver enable propagation delays.

Memory Address Buffering

Low-Voltage Clock Distribution

Use Scenario: Driving 16-bit address bus between a 1.8 V microcontroller and 3.3 V SRAM or Flash memory.

IC Role / Device Role / Timing Role: Non-inverting buffer with 3.6 V tolerant outputs ensures reliable address latching despite V_CC mismatch; nibble control allows dynamic segment disabling.

Use Value: Eliminates level-shifter ICs and reduces propagation delay to ≤3.0 ns, preserving setup/hold timing margins at 100+ MHz bus speeds.

Use Scenario: Distributing a 50 MHz system clock from a 2.5 V oscillator to multiple 1.8 V logic blocks.

IC Role / Device Role / Timing Role: Low-skew, low-jitter buffer stage with matched t_PHL/t_PLH ensures synchronous clock arrival across fanout branches.

Use Value: 6 pF input capacitance minimizes oscillator load; 3-state capability permits clock gating without signal reflection or termination disruption.

Hot-Swappable Module Interface

Industrial Bus Transceiver Support

Use Scenario: Enabling live insertion of a peripheral card into a powered-backplane system with 3.3 V signaling.

IC Role / Device Role / Timing Role: Acts as I/O isolation barrier; power-off high-Z behavior prevents backfeeding during card insertion/removal sequences.

Use Value: Meets JEDEC JED98 latch-up immunity and >2000 V HBM ESD rating, ensuring reliability during repeated hot-plug cycles without external protection.

Use Scenario: Supporting bidirectional data transfer on an isolated CAN or RS-485 transceiver control interface.

IC Role / Device Role / Timing Role: Buffers direction-control and enable signals between MCU GPIOs and transceiver logic inputs, isolating noise-sensitive analog sections.

Use Value: 3.6 V I/O tolerance accommodates transceiver logic thresholds; 4.0 ns max t_PZH enables precise timing alignment with transceiver enable propagation delays.

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
SN74ALVC16244DGGR	TSSOP-48 package, identical AC/DC specs, same 1.65–3.6 V V_CC and 3.6 V I/O tolerance; TI-manufactured with different marking and traceability.	Validated in TI reference designs for FPGA configuration buses; slightly higher typical I_OL (26 mA vs. 24 mA) at 3.0 V.	Select when sourcing from TI-authorized channels or requiring TI-specific qualification documentation.
74LVC16244APAG	TSSOP-48, same pinout, but rated only to 3.3 V V_CC max and 3.3 V I/O tolerance; lacks 3.6 V margin and has slower t_PD (3.7 ns min).	Suitable for pure 3.3 V systems only; not recommended where 3.6 V tolerance or 1.8 V operation is required.	Choose only if cost sensitivity outweighs future-proofing needs and system voltage headroom is guaranteed ≤3.3 V.

Compared with SN74ALVC16244DGGR and 74LVC16244APAG, the 74ALVC16244MTDX provides superior voltage flexibility (1.65–3.6 V operation + 3.6 V I/O tolerance), faster timing at low V_CC, and onsemi's validated live-insertion support-critical for modular industrial and telecom infrastructure designs.

Availability

74ALVC16244MTDX is available at Aetrix Electronics and suitable for memory subsystems, low-voltage clock trees, and hot-swappable module interfaces requiring stable component supply, long-term lifecycle assurance, and Pb-free compliance.

Supply support for 74ALVC16244MTDX 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.

The ALVC logic family-including the 74ALVC16244MTDX-is engineered for high-speed, low-voltage operation in space-constrained, mixed-supply digital systems, emphasizing signal integrity, power efficiency, and robustness in harsh environments.

FAQ

What is the minimum V_CC required for functional operation of the 74ALVC16244MTDX?

The 74ALVC16244MTDX requires a minimum V_CC of 1.65 V for guaranteed operation across all specified parameters, including propagation delay, output drive strength, and input threshold levels. Below this voltage, DC characteristics such as V_IL and V_OH are not assured, and timing performance degrades significantly. The 74ALVC16244MTDX is not characterized for operation below 1.65 V.

Can the 74ALVC16244MTDX be used to interface a 1.8 V FPGA with a 3.3 V ADC?

Yes-the 74ALVC16244MTDX supports 3.6 V tolerant inputs and outputs, allowing direct connection from a 1.8 V V_CC-powered 74ALVC16244MTDX to 3.3 V logic levels without level shifters. Its 1.65–3.6 V V_CC range and guaranteed VIH/VIL thresholds at 1.8 V ensure reliable signal translation in both directions for control and status lines.

How does the nibble-level 3-state control of the 74ALVC16244MTDX improve system design?

The 74ALVC16244MTDX provides four independent OE inputs (OE1–OE4), each controlling a 4-bit group (I0–I3/O0–O3, etc.). This enables selective bus segmentation-for example, disabling unused memory address ranges while keeping data lines active-reducing dynamic power, minimizing contention risk, and simplifying timing closure in multi-master systems.

Is the 74ALVC16244MTDX suitable for hot-swap applications?

Yes-the 74ALVC16244MTDX supports live insertion and withdrawal per its datasheet. Its power-off high-impedance inputs and outputs prevent back-driving during power sequencing, and its >2000 V HBM ESD rating and JEDEC JED98 latch-up immunity ensure robustness during repeated hot-plug events in modular backplane or blade-server systems.

What is the maximum output drive capability of the 74ALVC16244MTDX at 2.5 V V_CC?

At 2.5 V V_CC, the 74ALVC16244MTDX guarantees ±12 mA output drive (I_OH/I_OL) while maintaining VOL ≤ 0.4 V and VOH ≥ 2.2 V. This supports driving two standard CMOS loads (C_L = 50 pF) or one 50 Ω transmission line with minimal signal degradation, as verified in the AC Electrical Characteristics table of the 74ALVC16244MTDX datasheet.

74ALVC16244MTDX Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: 74ALVC

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

Packaging:: Tape & Reel (TR)

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:: 24mA, 24mA

Voltage - Supply:: 1.65V ~ 3.6V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

74ALVC16244MTDX FAQ

1.How can I place an order for 74ALVC16244MTDX through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVC16244MTDX 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 74ALVC16244MTDX reliable?

The price and inventory of 74ALVC16244MTDX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC16244MTDX is usually 5 days.

3.What payment methods are accepted for 74ALVC16244MTDX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC16244MTDX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74ALVC16244MTDX?

74ALVC16244MTDX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74ALVC16244MTDX 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 74ALVC16244MTDX?

For technical support, including 74ALVC16244MTDX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC16244MTDX requirements.

6.How does Aetrix verify that 74ALVC16244MTDX is sourced from the original manufacturer or authorized distributors?

All 74ALVC16244MTDX 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 74ALVC16244MTDX meets industry standards.

7.What is the process for return or replacement of 74ALVC16244MTDX?

All 74ALVC16244MTDX units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC16244MTDX, 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 74ALVC16244MTDX part is unused and in its original packaging.

Return procedure for 74ALVC16244MTDX:

1.Submit a request within 90 days.

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

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