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Home Products Integrated Circuits (ICs)Logic - Buffers, Drivers, Receivers, Transceivers~~SN74ALVC16244ADLR~~

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SN74ALVC16244ADLR - Texas Instruments

Name: Texas Instruments SN74ALVC16244ADLR
Brand: Texas Instruments
SKU: SN74ALVC16244ADLR
Availability: InStock
Rating: 5 (5 reviews)

Manufacturer Part Number: SN74ALVC16244ADLR

Manufacturer: Texas Instruments

Allelco Part Number: 32D-SN74ALVC16244ADLR

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 17,664 pcs available, New & Original

Parts Description: IC BUF NON-INVERT 3.6V 48SSOP

Package: 48-SSOP

Data sheet: SN74ALVC16244AD.pdf

Datasheets
SN74ALVC16244A.pdf

RoHs Status: ROHS3 Compliant

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In stock: 17664

Specifications

SN74ALVC16244ADLR Tech Specifications
Texas Instruments - SN74ALVC16244ADLR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN74ALVC16244ADLR

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Supply	1.65V ~ 3.6V
Supplier Device Package	48-SSOP
Series	74ALVC
Package / Case	48-BSSOP (0.295", 7.50mm Width)
Package	Tape & Reel (TR)
Output Type	3-State
Operating Temperature	-40°C ~ 85°C (TA)

Product Attribute	Attribute Value
Number of Elements	4
Number of Bits per Element	4
Mounting Type	Surface Mount
Logic Type	Buffer, Non-Inverting
Input Type	-
Current - Output High, Low	24mA, 24mA
Base Product Number	74ALVC16244

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

SN74ALVC16244ADLR (1)

Manufacturer Part Number

SN74ALVC16244ADLR

Manufacturer

Texas Instruments

Introduction

The SN74ALVC16244ADLR is a high-performance, low-power 4-bit buffer/line driver with 3-state outputs. It is designed to provide the necessary interface between low-voltage logic and higher-voltage logic or I/O. The device features high-speed operation, low power consumption, and a wide operating voltage range, making it suitable for a variety of applications.

Product Features and Performance

4-bit buffer/line driver with 3-state outputs

Supports input voltages from 1.65V to 3.6V

Propagation delays as low as 3.5ns (typical)

24mA output drive capability

Low power consumption (typical ICC of 10μA)

Operates across a wide temperature range of -40°C to 85°C

Product Advantages

Versatile interface between low-voltage and higher-voltage logic

Efficient power management with low power consumption

High-speed operation for fast data transfer

Wide operating voltage range for flexibility in various applications

Key Reasons to Choose This Product

Reliable and robust performance in a wide range of applications

Cost-effective solution for interfacing between different logic voltage levels

Compact surface-mount package for efficient board space utilization

Long-term availability and support from a trusted industry leader, Texas Instruments

Quality and Safety Features

Rigorous quality control and testing processes

Compliance with industry safety and environmental standards

Thermal shutdown and over-current protection for reliable operation

Compatibility

The SN74ALVC16244ADLR is compatible with a variety of logic families, including CMOS, TTL, and LVCMOS, making it suitable for use in a wide range of digital circuits and systems.

Application Areas

Computer and peripheral interfaces

Telecommunications equipment

Industrial automation and control systems

Embedded systems and consumer electronics

Product Lifecycle

The SN74ALVC16244ADLR is an active product in our website's sales team's portfolio. There are no plans for discontinuation at this time. Equivalent or alternative models are available, such as the SN74ALVC16245ADLR and SN74ALVC16374ADLR, which offer similar functionality and performance. Customers are encouraged to contact our website's sales team for more information and to discuss their specific requirements.

Frequently Asked Questions(FAQ)

How does the SN74ALVC16244ADLR perform in high-speed signal routing applications, and what are the key timing parameters to consider when integrating it into a 3.6V system?: The SN74ALVC16244ADLR is designed for high-speed data buffering with propagation delays typically under 5 ns at 3.6V supply and 25°C, making it suitable for routing signals in systems where timing integrity is critical. Its low skew between channels ensures reliable synchronization across the four 4-bit buffers, which is essential in bus architectures or clock distribution networks. When operating near the upper voltage limit of 3.6V, designers should account for slight increases in power dissipation and ensure thermal management aligns with the maximum junction temperature of 150°C. This device supports edge rates faster than 1 ns without external termination, reducing ringing risks in transmission lines.

What are the differences between the SN74ALVC16244ADLR and similar buffer ICs such as the 74LVC16244A in terms of voltage tolerance, power consumption, and package compatibility?: While both the SN74ALVC16244ADLR and 74LVC16244A share a similar function and pinout, the ALVC family offers improved performance at lower voltages, supporting operation from 1.65V to 3.6V versus LVC’s 1.65V to 3.6V range but with better noise margin stability at 1.8V. The ALVC variant typically consumes 20–30% less static power due to advanced CMOS design, making it preferable in battery-powered or space-constrained designs. Both use the same 48-SSOP package, allowing drop-in replacement, but the ALVC version exhibits lower leakage current, enhancing efficiency in always-on subsystems. However, the LVC may be sufficient for applications not pushing sub-2V logic levels, offering cost advantages where performance headroom exists.

Can the SN74ALVC16244ADLR safely drive multiple loads without additional buffering, and how do its output current capabilities compare to industry standards for 3-state buffers?: Yes, the SN74ALVC16244ADLR can directly drive up to 24 mA per output in high-state mode and sink 24 mA in low-state mode, which exceeds typical requirements for standard logic families like LVTTL (typically 8 mA). This allows it to support multiple CMOS inputs or light capacitive loads without auxiliary drivers. For example, driving four 50 pF capacitive loads would draw approximately 96 mA total peak current, well within the 100 mA aggregate limit for the package. Compared to general-purpose buffers, this level of drive strength reduces the need for series termination resistors in short interconnects, simplifying PCB layout while maintaining signal integrity.

What precautions should be taken during PCB layout when using the SN74ALVC16244ADLR to minimize electromagnetic interference and crosstalk between adjacent channels?: Due to its dense 48-pin SSOP footprint with closely spaced leads, careful attention to trace routing is essential. Maintain a minimum spacing of 0.5 mm between high-speed signal paths to reduce coupling; use ground planes beneath signal layers to contain return currents and suppress radiation. Avoid placing the SN74ALVC16244ADLR near clock edges or switching power inductors. Decouple each VCC pin with a 0.1 µF ceramic capacitor placed within 2 mm of the package, targeting high-frequency noise suppression. Differential pairs should be routed symmetrically if used for differential signaling, though this device is single-ended. These practices help maintain signal integrity in environments with tight board real estate.

Is the SN74ALVC16244ADLR suitable for hot-plug scenarios or systems with dynamic voltage scaling, and what input protection features does it offer?: The SN74ALVC16244ADLR includes ESD protection diodes on all inputs rated at ±2 kV (HBM), providing some resilience against accidental contact or voltage transients. However, it is not specifically qualified for hot-plugging according to JEDEC standards, so enabling circuits should include current-limiting resistors or back-to-back MOSFETs on power rails. In systems with dynamic voltage scaling—such as those stepping from 3.3V to 1.8V—the device supports mixed-voltage operation as long as input levels comply with VIL/VIH thresholds for the active supply rail. Inputs must never exceed VCC + 0.5 V or go below GND – 0.5 V to prevent latch-up, especially during power sequencing anomalies.

How does temperature affect the propagation delay and output drive capability of the SN74ALVC16244ADLR, particularly in industrial temperature ranges?: Over the industrial range of -40°C to 85°C, propagation delay increases by approximately 30–50% compared to room temperature due to reduced carrier mobility in CMOS transistors. At -40°C, delays may reach 7–8 ns at 3.6V, while at 85°C, they stabilize around 6 ns. Output current remains relatively stable, though maximum sourcing/sinking current drops slightly at elevated temperatures due to increased threshold voltage. Designers targeting high-speed paths should derate timing budgets accordingly or select faster alternatives if margins fall below 20%. Thermal resistance for the 48-SSOP is about 45°C/W, so sustained full-load operation requires consideration of ambient conditions and airflow.

What are the recommended decoupling strategies for the SN74ALVC16244ADLR in noisy environments, and how many capacitors are needed given its multi-supply architecture?: Each VCC pin should be bypassed with a 0.1 µF X7R/X5R ceramic capacitor located no more than 2 mm from the package pad, totaling six capacitors for the six supply pins. Additionally, place a bulk 1 µF capacitor near the board’s power entry point to handle transient bursts. In systems with digital noise sources (e.g., switching regulators), adding a 10 nF capacitor close to each power rail further suppresses high-frequency ripple. The SN74ALVC16244ADLR’s low quiescent current (~1 µA) minimizes self-heating, but effective decoupling is still necessary to maintain PSRR above 40 dB at 100 MHz, ensuring clean switching behavior across all four buffer banks.

Can the SN74ALVC16244ADLR be used in bidirectional communication protocols such as I²C, and what limitations apply to open-drain outputs?: No, the SN74ALVC16244ADLR provides three-state *push-pull* outputs, not open-drain, so it cannot natively implement true bidirectional signaling required for I²C. Attempting to use it in pull-up-only configurations risks damaging the device due to contention when multiple masters drive simultaneously. For I²C interfacing, dedicated I/O expanders with open-drain outputs are preferred. However, this buffer can serve as a unidirectional translator between 3.3V I²C peripherals and a 1.8V microcontroller if directionality is controlled externally, provided output enable timing avoids simultaneous assertion of conflicting drives.

What is the impact of enabling all four 4-bit buffers simultaneously on power consumption, and how does this compare to selective channel activation?: Enabling all 16 outputs with active switching at 100 MHz results in dynamic power consumption of roughly 12 mW per buffer bank at 3.3V, totaling approximately 48 mW under worst-case capacitive loading (25 pF per output). Static power is negligible (< 5 µA), dominated by leakage. If only two buffers are active, power drops proportionally to switching activity and load capacitance. Selective enablement reduces both switching noise and heat generation, beneficial in low-duty-cycle applications. Thermal modeling shows that continuous full-load operation raises die temperature by ~15°C above ambient, acceptable within the 85°C limit but requiring verification in compact enclosures.

How does the SN74ALVC16244ADLR handle metastability when input transitions occur near clock edges in asynchronous systems?: As a non-synchronous buffer, the SN74ALVC16244ADLR does not incorporate internal synchronizers, so metastable states are not a formal concern—its outputs respond immediately to input changes based on internal logic delays. However, in asynchronous interfaces where setup/hold times are not enforced, rapid input toggling near output transitions can cause glitches or brief invalid states due to internal node settling times. Typical glitch duration is < 1 ns, which is generally filtered by downstream logic with sufficient guardbanding. To mitigate risk, insert small RC filters (e.g., 100 Ω + 10 pF) on critical inputs or use Schmitt-trigger inputs on receiving devices if noise immunity is borderline.

What are the implications of using the SN74ALVC16244ADLR in automotive-grade systems, and does it meet relevant qualification standards beyond commercial operation?: The SN74ALVC16244ADLR is rated for commercial automotive environments (-40°C to 125°C TA), but this specific part (SN74ALVC16244ADLR) is not qualified to AEC-Q100 Grade 2 unless explicitly stated by TI. It operates reliably in mild automotive infotainment systems where temperature cycling is moderate, but failsafe mechanisms or redundancy should be considered for safety-critical functions. For full automotive compliance, TI offers variants like SN74ALVCT16244ADWRG4, which pass extended stress tests. Even in non-automotive uses, the device’s MSL 1 rating ensures robust handling during assembly, but conformal coating may degrade solder joint reliability over time in humid environments.

How does input capacitance and drive strength influence signal rise/fall times when cascading the SN74ALVC16244ADLR in multi-stage logic chains?: Each input of the SN74ALVC16244ADLR presents a nominal input capacitance of ~5 pF, contributing to cumulative loading in cascaded stages. With 16 inputs active, total input charge storage can reach 80 pF, slowing edge rates if driven by weak sources. Output rise/fall times are typically 0.8 ns at 3.3V with 50 Ω load, but increase significantly with higher capacitive loads. In deep chains, distributed RC effects may necessitate source termination or repeaters every 3–4 levels to maintain timing margins. For example, driving a 200 pF load results in rise time exceeding 3 ns, potentially violating setup windows in fast serial links like SPI running above 20 MHz.

What are the best practices for testing the functional integrity of the SN74ALVC16244ADLR during prototype validation, especially for verifying three-state control logic?: Begin with boundary scan (JTAG) if available to verify pin connectivity and isolation. Then apply staggered enable patterns across OE (output enable) pins while monitoring outputs with an oscilloscope or logic analyzer. Ensure that when OE is asserted low, all corresponding outputs transition cleanly within 1 ns; when deasserted, outputs enter high-impedance state without floating or cross-talk. Inject noise on power rails (±10%) and measure recovery time—should return to normal operation within 100 µs. Validate worst-case propagation delay using 50% input-to-output crossing measurements with 10%-90% edge definitions. Include thermal soak tests at 85°C to confirm no parametric drift affects enable/disable behavior.

Can the SN74ALVC16244ADLR interface directly with FPGA I/O banks operating at 1.2V, and what level-shifting considerations apply?: Direct connection is possible only if the 1.2V FPGA outputs swing fully between 0 and 1.2V, which falls below the SN74ALVC16244ADLR’s VIH(min) of 0.6 × VCC at 1.65V. For 1.8V operation, VIH = 1.08 V, still above 1.2V logic high. Thus, at 1.8V supply, the buffer may not recognize valid logic highs from a 1.2V device. Use of a dedicated level shifter or resistive divider with hysteresis is recommended. Alternatively, configure the FPGA bank to operate at 1.8V or higher to ensure compatibility. Input thresholds scale linearly with VCC, so matching supplies across domains simplifies translation without additional components.

What are the environmental and regulatory compliance aspects of the SN74ALVC16244ADLR, and how do these affect global deployment?: The SN74ALVC16244ADLR complies with RoHS3 directives, excluding hazardous substances like lead, mercury, and cadmium, making it suitable for EU, China, and California markets. It carries REACH exemption status, avoiding registration burdens for certain intermediates. Export controls classify it under ECCN EAR99, indicating minimal restrictions for most countries. HTSUS code 8542.39.0001 facilitates customs clearance in North America. Moisture sensitivity level (MSL) 1 allows unlimited floor life after dry-packaged delivery, simplifying inventory management. These attributes support broad deployment in consumer, industrial, and communications equipment without additional certification overhead.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments SN74ALVC16244ADLR

Product Attribute
Part Number	SN74ALVC16244AGQLR	SN74ALVC16244ADLG4	SN74ALVC16244AZQLR	SN74ALVC16244AZRDR
Manufacturer	Texas Instruments	Luminary Micro / Texas Instruments	Texas Instruments	Texas Instruments
Logic Type	-	-	-	-
Series	-	-	-	-
Number of Elements	-	-	-	-
Voltage - Supply	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Current - Output High, Low	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Input Type	-	-	-	Differential
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Number of Bits per Element	-	-	-	-
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)

SN74ALVC16244ADLR Datasheet PDF

Download SN74ALVC16244ADLR pdf datasheets and Texas Instruments documentation for SN74ALVC16244ADLR - Texas Instruments.

Datasheets: SN74ALVC16244A.pdf

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Customer Reviews

Evaluation: 10 Articles

Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.
Oliv***arris

May 7, 2026

Reliable I/O expander. Works well in embedded control applications.
Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.

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