Please refer to the English Version as our Official Version.

Europe: France~~(Français)~~ Germany~~(Deutsch)~~ Italy~~(Italia)~~ Russian~~(русский)~~ Poland~~(polski)~~ Czech~~(Čeština)~~ Luxembourg~~(Lëtzebuergesch)~~ Netherlands~~(Nederland)~~ Iceland~~(íslenska)~~ Hungarian~~(Magyarország)~~ Spain~~(español)~~ Portugal~~(Português)~~ Turkey~~(Türk dili)~~ Bulgaria~~(Български език)~~ Ukraine~~(Україна)~~ Greece~~(Ελλάδα)~~ Israel~~(עִבְרִית)~~ Sweden~~(Svenska)~~ Finland~~(Svenska)~~ Finland~~(Suomi)~~ Romania~~(românesc)~~ Moldova~~(românesc)~~ Slovakia~~(Slovenská)~~ Denmark~~(Dansk)~~ Slovenia~~(Slovenija)~~ Slovenia~~(Hrvatska)~~ Croatia~~(Hrvatska)~~ Serbia~~(Hrvatska)~~ Montenegro~~(Hrvatska)~~ Bosnia and Herzegovina~~(Hrvatska)~~ Lithuania~~(lietuvių)~~ Spain~~(Português)~~ Switzerland~~(Deutsch)~~ United Kingdom~~(English)~~

Asia/Pacific: Japan~~(日本語)~~ Korea~~(한국의)~~ Thailand~~(ภาษาไทย)~~ Malaysia~~(Melayu)~~ Singapore~~(Melayu)~~ Vietnam~~(Tiếng Việt)~~ Philippines~~(Pilipino)~~

Africa, India and Middle East: United Arab Emirates~~(العربية)~~ Iran~~(فارسی)~~ Tajikistan~~(فارسی)~~ India~~(हिंदी)~~ Madagascar~~(malaɡasʲ)~~

South America / Oceania: New Zealand~~(Maori)~~ Brazil~~(Português)~~ Angola~~(Português)~~ Mozambique~~(Português)~~

North America: United States~~(English)~~ Canada~~(English)~~ Haiti~~(Ayiti)~~ Mexico~~(español)~~

Home Products Integrated Circuits (ICs)Logic - Buffers, Drivers, Receivers, Transceivers~~SN74LVC245ARGYR~~

Image may be representation.
See specifications for product details.

~~Favorite~~

EXPRESS OPTION

Payment method

SN74LVC245ARGYR - Texas Instruments

Name: Texas Instruments SN74LVC245ARGYR
Brand: Texas Instruments
SKU: SN74LVC245ARGYR
Price: 0.148 USD
Availability: InStock
Rating: 5 (5 reviews)

Manufacturer Part Number: SN74LVC245ARGYR

Manufacturer: Texas Instruments

Allelco Part Number: 32D-SN74LVC245ARGYR

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 186,450 pcs available, New & Original

Parts Description: IC TXRX NON-INVERT 3.6V 20VQFN

Package: 20-VQFN (3.5x4.5)

Data sheet: SN74LVC245ARGYR.pdf

Datasheets
Logic Guide.pdf SN74LVC245A.pdf

HTML Datasheet
SN74LVC245A.pdf

RoHs Status: ROHS3 Compliant

~~Compare~~

Our certification

In stock: 186450

Unit Price: $0.156
Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity	Unit Price	Ext. Price
1+	$0.156	$0.16
10+	$0.153	$1.53
30+	$0.15	$4.50
100+	$0.148	$14.80

The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

SN74LVC245ARGYR Tech Specifications
Texas Instruments - SN74LVC245ARGYR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN74LVC245ARGYR

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage - Supply	1.65V ~ 3.6V
Supplier Device Package	20-VQFN (3.5x4.5)
Series	74LVC
Package / Case	20-VFQFN Exposed Pad
Package	Tape & Reel (TR)
Output Type	3-State
Operating Temperature	-40°C ~ 125°C (TA)

Product Attribute	Attribute Value
Number of Elements	1
Number of Bits per Element	8
Mounting Type	Surface Mount
Logic Type	Transceiver, Non-Inverting
Input Type	-
Current - Output High, Low	24mA, 24mA
Base Product Number	74LVC245

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	2 (1 Year)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Parts Introduction

SN74LVC245ARGYR (1)

Manufacturer Part Number

SN74LVC245ARGYR

Manufacturer

Texas Instruments

Introduction

Logic transceiver for transferring digital data between bus lines.

Product Features and Performance

8-bit bidirectional data transmission

Supports 5V tolerant inputs

Low-power consumption design

ESD protection exceeds JESD 22

Product Advantages

Operates from 1.65V to 3.6V

Interface capability with 5V logic signals

Latch-up performance exceeds 250mA per JESDEC standard

SN74LVC245ARGYR (2)

Key Technical Parameters

Logic Type: Non-Inverting Transceiver

Number of Elements: 1

Number of Bits per Element: 8

Current - Output High, Low: 24mA, 24mA

Voltage - Supply: 1.65V ~ 3.6V

Operating Temperature: -40°C ~ 125°C

Quality and Safety Features

Exceeds 2000-V human body model (A114-A)

MTBF (Mean Time Between Failures) support

Compatibility

Interoperable with standard logic levels

5V tolerant for mixed voltage applications

Application Areas

Data bus transceiver

Signal buffering and driving

Microprocessor or microcontroller interface

Product Lifecycle

Active Product

Not indicated as nearing discontinuation

Key Reasons to Choose This Product

High-speed signal propagation

Robust against electrical disturbances

Flexible in mixed voltage environments

Compatible with down-sized system power requirements

Ensures data integrity with 3-state outputs

Supports high-temperature operation up to 125°C

Provided in surface mount packaging for compact PCB designs

Available in tape and reel for automated assembly processes

Frequently Asked Questions(FAQ)

How does the SN74LVC245ARGYR transceiver handle voltage level translation between 3.3V and 1.8V systems while maintaining signal integrity at high data rates?: The SN74LVC245ARGYR supports bi-directional voltage level shifting across its entire supply range of 1.65V to 3.6V, making it suitable for interfacing between 3.3V and 1.8V logic families. Its LVC family architecture ensures low propagation delay (typically under 4ns) and maintains signal integrity due to controlled slew rates and minimized ground bounce. With ±24mA output drive capability, it can reliably drive capacitive loads common in modern IC interfaces without requiring external buffering, even at clock frequencies exceeding 100MHz.

What are the key differences in power consumption and noise characteristics between the SN74LVC245ARGYR and a traditional 74HC245 when used in battery-powered applications?: Compared to the 74HC245, the SN74LVC245ARGYR consumes significantly less static power due to its lower operating voltage range (down to 1.65V vs. 4.5V minimum) and reduced leakage current. In typical 3.3V operation, the LVC variant draws approximately 1–2µA per gate versus 10–20µA for HC-series parts, resulting in longer battery life. Additionally, the LVC design exhibits better immunity to electromagnetic interference (EMI) and reduced crosstalk due to improved ESD protection and tighter package parasitics in the 20-VQFN form factor.

Can the SN74LVC245ARGYR be safely used in automotive-grade temperature environments (-40°C to +125°C), and what design considerations apply for reliability?: Yes, the SN74LVC245ARGYR is rated for industrial and automotive-grade operation from -40°C to +125°C, meeting AEC-Q100 qualification requirements when sourced through certified suppliers. However, designers must ensure proper thermal management—especially in densely populated PCBs—due to the small 3.5x4.5mm VQFN package’s limited exposed pad dissipation. Adequate copper pour on the bottom-side thermal pad and via stitching are recommended to prevent localized overheating during sustained high-load conditions.

When should I use the SN74LVC245ARGYR instead of discrete MOSFET-based level shifters in a mixed-voltage system with bidirectional signals?: The SN74LVC245ARGYR is preferable when speed, signal integrity, or board space is constrained. Discrete MOSFET solutions introduce variable propagation delays and threshold mismatches that degrade timing margins, whereas the integrated transceiver offers consistent 8-bit parallel performance with built-in direction control. For systems requiring >50MHz operation or strict setup/hold time compliance, the SN74LVC245ARGYR provides deterministic behavior unmatched by analog switching methods.

What impact does enabling three-state outputs have on bus contention risks when using multiple SN74LVC245ARGYR devices on shared communication lines?: Properly managed three-state control prevents bus contention by ensuring only one driver is active at any time. Each SN74LVC245ARGYR includes independent OE# (output enable) inputs that allow precise gating of its 8-bit bus. However, asynchronous transitions between enabled and disabled states must be coordinated to avoid transient glitches. Adding series termination resistors (e.g., 22Ω–100Ω) near each output further reduces ringing and overshoot during state changes, enhancing robustness in multi-drop configurations.

How does the pinout configuration of the SN74LVC245ARGYR affect PCB layout complexity compared to SOIC-packaged alternatives?: The 20-VQFN (3.5x4.5mm) package of the SN74LVC245ARGYR reduces footprint by ~60% compared to standard SOIC-20, enabling higher-density designs. However, its small size demands careful attention to trace routing around the device, especially for the critical DIR (direction) and OE# control lines. The exposed thermal pad must be connected to a solid ground plane via multiple vias to maintain electrical and thermal performance—this increases layout effort but yields superior high-frequency behavior and heat dissipation.

Is the SN74LVC245ARGYR suitable for driving long unterminated traces (>10cm) in a backplane application, and what precautions are necessary?: While possible, driving long traces without proper termination can lead to reflections and signal degradation due to impedance mismatch. The SN74LVC245ARGYR’s 24mA drive strength helps overcome capacitive loading, but for traces exceeding 10cm, adding source termination (series resistor matching trace impedance, typically 50Ω–100Ω) at the driver end is strongly advised. This minimizes overshoot and improves rise/fall times, preserving data integrity over the full channel length.

How does the Moisture Sensitivity Level (MSL) classification of MSL 2 for the SN74LVC245ARGYR influence storage and handling procedures before reflow soldering?: As an MSL 2 component, the SN74LVC245ARGYR must be stored in dry ambient conditions and used within one year of opening the moisture-barrier bag. If humidity exposure occurs, it must undergo bake-out prior to reflow to prevent popcorning during thermal cycling. Standard JEDEC J-STD-033 guidelines apply: store at <30°C and <60% RH, or use desiccant and nitrogen purging during packaging. Failure to follow these protocols may compromise bond wire integrity and cause latent defects.

Can multiple SN74LVC245ARGYR devices share the same supply rail without risking reverse current flow or latch-up?: Yes, multiple SN74LVC245ARGYR units can share a single 1.65V–3.6V supply provided all VCC pins are directly tied together with short, wide traces to minimize inductance. The devices feature internal clamping diodes and robust ESD protection (±2kV HBM), reducing latch-up risk under normal conditions. However, decoupling capacitors (≥0.1µF ceramic) must be placed close to each VCC pin to suppress transient currents and stabilize voltage rails during simultaneous switching events.

What are the implications of using the SN74LVC245ARGYR in a hot-swap scenario where power sequencing is not strictly controlled?: In uncontrolled hot-swap conditions, abrupt power-up may induce excessive inrush current or voltage transients that stress the device. Although the SN74LVC245ARGYR has moderate ESD tolerance, adding a soft-start circuit or pre-charge regulator helps limit di/dt. Alternatively, using dedicated hot-swap controllers upstream ensures gradual ramp-up of the 1.65V–3.6V supply, protecting both the transceiver and downstream loads from damage due to sudden voltage application.

How does the propagation delay variation across temperature affect timing budgets when cascading two SN74LVC245ARGYR transceivers?: Propagation delay increases slightly with temperature, typically by 0.5–1ns per 25°C rise above 25°C. At 125°C, the total skew between cascaded SN74LVC245ARGYR units could accumulate to 8–12ns worst-case, potentially violating hold-time requirements if input data changes too closely to the clock edge. Designers should allocate margin in timing analysis by assuming maximum delay spread and avoiding tight coupling between input and output clocks across temperature extremes.

Does the SN74LVC245ARGYR support partial bus operation, such as driving only 4 bits while leaving others inactive, without affecting performance?: Yes, the SN74LVC245ARGYR allows partial bus usage by simply leaving unused output enables (OE#) asserted high or connecting corresponding inputs to stable logic levels. Since each 8-bit element operates independently, driving only a subset (e.g., bits 0–3) does not degrade performance of active channels. However, floating inputs should be avoided; they can oscillate and increase power consumption. Pull-up or pull-down resistors (10kΩ typical) are recommended for unconnected inputs to ensure predictable behavior.

How does the cut tape (CT) and Digi-Reel® packaging format of the SN74LVC245ARGYR benefit automated assembly processes?: The CT and reel formats enable fully automated pick-and-place operations, improving throughput and reducing human error during mass production. Components are presented in standardized carrier tapes compatible with industry-standard feeders, allowing seamless integration into surface-mount lines. This packaging also facilitates just-in-time inventory management and minimizes handling damage, critical for high-reliability applications like automotive or industrial control systems.

What role does the direction control (DIR) pin play in preventing data collision when using the SN74LVC245ARGYR in a dual-master bus topology?: The DIR pin selects the data flow direction: high for A-to-B, low for B-to-A. In a dual-master system, arbitration logic must coordinate DIR assertion to prevent simultaneous transmission on both ports. Without proper sequencing, data collisions occur. Implementing a centralized arbiter or using open-collector outputs with wired-OR detection ensures only one master drives the bus at a time, leveraging the SN74LVC245ARGYR’s clean 3-state transition characteristics to avoid metastability.

Are there any known limitations in using the SN74LVC245ARGYR with LVCMOS versus LVTTL input thresholds, and how does this affect interface compatibility?: The SN74LVC245ARGYR accepts both LVCMOS and LVTTL inputs due to its wide 1.65V–3.6V supply range and compatible threshold voltages. At 3.3V, its VIH(min) of 2.0V aligns well with LVTTL HIGH levels (~2.4V), ensuring reliable recognition without margin loss. This flexibility simplifies interfacing across legacy and modern CMOS families, though designers should still verify absolute maximum ratings under extreme voltage combinations to avoid unintended conduction paths.

How does the RoHS3 compliance of the SN74LVC245ARGYR influence global regulatory adherence, particularly in markets like Europe and China?: RoHS3 compliance means the SN74LVC245ARGYR meets updated European Union restrictions on hazardous substances, including stricter limits on phthalates and expanded coverage of electronic equipment categories. It also satisfies China’s SJ/T 11363-2014 standards, facilitating importation and certification in those regions. This compliance avoids legal risks and supports sustainability goals, making the part suitable for consumer, medical, and telecom products requiring full environmental conformance.

What diagnostic features or test points should be included when prototyping with the SN74LVC245ARGYR to validate signal integrity?: Include access points for probing DIR, OE#, and clock signals to monitor control logic timing. For data validation, place test pads near input and output ports to capture waveforms using oscilloscopes. Measure rise/fall times (<5ns typical) and verify absence of ringing. Additionally, monitor VCC ripple (<50mVpp) to detect decoupling inadequacies. These diagnostics help identify issues early, such as improper termination or insufficient drive strength, ensuring robust operation before finalizing the PCB layout.

How does the ECCN classification (EAR99) of the SN74LVC245ARGYR affect export controls, and what documentation is required for international shipments?: EAR99 indicates the SN74LVC25ARGYR is subject to U.S. Export Administration Regulations but generally qualifies for license exception eligibility due to its commercial, non-military nature. No special license is required for most destinations, but exporters must maintain records including commercial invoices, end-user statements, and technical descriptions. Always verify destination-specific regulations, as some countries impose additional local restrictions regardless of U.S. classification.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments SN74LVC245ARGYR

Product Attribute
Part Number	SN74LVC245ARGYRG4	SN74LVC245APWRG3	SN74LVC245APWRG3-J	SN74LVC245APWRG4
Manufacturer	Luminary Micro / Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Number of Bits per Element	-	-	-	-
Series	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Voltage - Supply	-	-	-	-
Number of Elements	-	-	-	-
Input Type	-	-	-	Differential
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Current - Output High, Low	-	-	-	-
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Logic Type	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42

SN74LVC245ARGYR Datasheet PDF

Download SN74LVC245ARGYR pdf datasheets and Texas Instruments documentation for SN74LVC245ARGYR - Texas Instruments.

Datasheets: Logic Guide.pdf SN74LVC245A.pdf
HTML Datasheet: SN74LVC245A.pdf

Customers Also Interested in

Recommended Products

Customer Reviews

Evaluation: 10 Articles

Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
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.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
PSMA