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HomeProductsIntegrated Circuits (ICs)Specialized ICsSN74LVC245APWT
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SN74LVC245APWT - Texas Instruments

Manufacturer Part Number
SN74LVC245APWT
Manufacturer
Texas Instruments
Allelco Part Number
41D-SN74LVC245APWT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
6,970 pcs available, New & Original
Parts Description
TSSOP-20
Data sheet
-
Category
Integrated Circuits (ICs) > Specialized ICs
RoHs Status
Compare
Our certification
In stock: 6970
  • Unit Price: $1.056
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $1.056 $1.06
10+ $1.033 $10.33
30+ $1.018 $30.54
100+ $1.003 $100.30
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

SN74LVC245APWT Tech Specifications
Texas Instruments - SN74LVC245APWT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN74LVC245APWT

Product Attribute Attribute Value
Part Number SN74LVC245APWT
Package TSSOP-20
Description TSSOP-20
Stock Condition Get 6970 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer Texas Instruments
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Parts Introduction

Manufacturer Part Number

SN74LVC245APWT

Manufacturer

Texas Instruments

Introduction

The SN74LVC245APWT is an 8-bit, high-performance, low-voltage, non-inverting transceiver designed for 1.65V to 3.6V VCC operation. It features independent direction control and 3-state outputs, making it suitable for bus-oriented applications.

Product Features and Performance

8-bit, high-performance, low-voltage, non-inverting transceiver

Supports 1.65V to 3.6V VCC operation

Independent direction control

3-state outputs

Operating temperature range of -40°C to 125°C

24mA output drive capability for both high and low states

Low power consumption

Product Advantages

Versatile transceiver design suitable for various bus-oriented applications

Wide supply voltage range for compatibility with different system requirements

Efficient power management with low power consumption

Robust operation within a wide temperature range

Key Reasons to Choose This Product

Optimized for low-voltage, high-performance applications

Flexible direction control and 3-state outputs for easy system integration

Reliable and durable performance across a wide temperature range

Texas Instruments' reputation for quality and innovation

Quality and Safety Features

Robust design for reliable operation

Compliance with industry standards and regulations

Compatibility

Compatible with 1.65V to 3.6V VCC systems

Suitable for various bus-oriented applications

Application Areas

Suitable for a wide range of bus-oriented applications, such as:

- Digital signal processing

- Microcontroller-based systems

- Embedded systems

- Communication interfaces

Product Lifecycle

["The SN74LVC245APWT is an active product.","There are equivalent or alternative models available, such as:","SN74LVC245-Q1 (qualified for automotive applications)","SN74LVC245A (updated version with improved performance)","For more information on available options, please contact our website's sales team."]

Frequently Asked Questions(FAQ)

How does the SN74LVC245APWT handle voltage translation in mixed-voltage systems, and what are its limitations when interfacing 3.3V logic with 5V peripherals?
The SN74LVC245APWT supports unidirectional bus translation across a wide supply voltage range of 1.65V to 3.6V, making it suitable for level shifting between different logic families. When used to interface 3.3V logic with 5V peripherals, it operates effectively as long as the 5V side is not driven above 3.6V, which would exceed its absolute maximum rating. Since this device uses 3-state outputs and non-inverting buffering, signal integrity is preserved during translation, but designers must ensure that input voltages on either side remain within the 0V to VCC+0.5V window. A key limitation arises during high-speed bidirectional communication, where propagation delays may increase significantly due to asymmetric drive capabilities between sides.
What is the maximum allowable current per output pin on the SN74LVC245APWT, and how should this be considered when driving capacitive loads or long PCB traces?
Each output of the SN74LVC245APWT can source or sink up to 24mA under normal operating conditions. However, this rating assumes stable thermal conditions and typical load types such as standard CMOS inputs. When driving capacitive loads—such as long PCB traces or external cables—the effective current demand increases due to charging dynamics, potentially leading to overshoot or ringing if termination is inadequate. In such cases, it's advisable to limit slew rates using series resistors or consider buffer stages to reduce electromagnetic interference (EMI) and prevent stress on the driver stage.
Can the SN74LVC245APWT be used bidirectionally for data buses, and how does its direction control differ from dedicated bidirectional buffers like the TXB series?
The SN74LVC245APWT is fundamentally a unidirectional transceiver; however, by connecting the A and B ports together and controlling the DIR pin dynamically, it can simulate bidirectional operation over an 8-bit bus. This approach requires precise timing coordination between direction changes and data transitions to avoid contention. Unlike Texas Instruments’ TXB series, which includes built-in direction detection and automatic flow control, the LVC245 lacks arbitration logic and relies solely on software-controlled DIR signals. Consequently, race conditions can occur if direction switching isn't synchronized with valid data states, increasing risk in asynchronous communication environments.
What is the typical propagation delay of the SN74LVC245APWT at 3.3V and 25°C, and how does temperature variation affect timing performance?
At 3.3V supply and room temperature (25°C), the SN74LVC245APWT exhibits a typical propagation delay of approximately 3.5 ns from input to output. This value decreases slightly at higher supply voltages but remains relatively consistent across industrial temperature ranges. As temperature rises toward 125°C, internal transistor characteristics shift, causing marginal increases in delay—typically less than 10% under worst-case conditions. Designers should account for this in synchronous systems where skew accumulates across multiple devices, especially when cascading transceivers in high-throughput applications.
How does the SN74LVC245APWT compare to the SN74LVT245APWT in terms of ESD protection and compatibility with 5V-tolerant I/O standards?
While both parts share the same core architecture and package configuration, the SN74LVT245APWT includes enhanced ESD protection circuitry and is specifically designed for 5V-tolerant I/O interfaces. The LV version can safely accept up to 5.5V on its B-side even when powered down, whereas the standard LVC245APWT has no such tolerance and risks latch-up if exposed to overvoltage during power-up sequencing. For applications requiring hot-plug capability or connection to legacy 5V systems without power synchronization, the LV variant offers superior robustness. Otherwise, the LVC245APWT provides adequate performance for strictly regulated 1.65V–3.6V environments.
What precautions should be taken when using the SN74LVC245APWT near its minimum supply voltage of 1.65V, particularly regarding noise margins and setup/hold times?
Operating near the lower end of the SN74LVC245APWT’s 1.65V supply reduces noise immunity and tightens logic threshold windows, increasing susceptibility to glitches. Input high-level thresholds rise proportionally with decreasing VCC, reducing margin against rail-to-rail noise. Additionally, setup and hold time requirements become more stringent due to slower transistor switching speeds. To maintain reliable operation, it's recommended to operate above 1.8V unless power budget constraints necessitate otherwise, and to use clean, well-bypassed supplies with minimal ripple to preserve signal integrity.
Is the SN74LVC245APWT suitable for automotive applications requiring functional safety compliance, and what qualification levels apply?
Although the SN74LVC245APWT meets general industrial temperature grading (-40°C to +125°C), it is not qualified to AEC-Q100 standards required for most automotive designs. It falls under standard commercial/industrial classification and carries an MSL rating of 1, indicating unlimited shelf life under proper storage. Therefore, while usable in non-critical automotive peripherals or infotainment subsystems where cost and size outweigh certification needs, it should not be deployed in safety-related functions such as braking control or airbag deployment without additional validation and redundancy measures.
How does the power consumption of the SN74LVC245APWT behave during dynamic switching versus static idle modes, and what impact does this have on battery-powered designs?
The SN74LVC245APWT exhibits low static power consumption—typically below 1 µA when inactive—but dynamic power scales with switching frequency and output load capacitance. At 3.3V and 10 MHz switching rate, average supply current can reach several mA per channel depending on output transitions. In battery-powered systems, enabling OE (output enable) during idle periods minimizes leakage, while clock gating reduces unnecessary toggling. Careful layout and minimizing trace lengths help reduce parasitic capacitance, thereby lowering overall energy per transition and extending operational lifetime.

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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.

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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

  1. Use your express account for shipment if you have one.
  2. 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

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. 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
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
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.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Payment Support

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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
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Texas Instruments

SN74LVC245APWT

Texas Instruments
41D-SN74LVC245APWT

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

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