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SN74HC245DWR

Octal 3-state bus transceiver, 2-6V, 12ns tpd, +/-6mA drive, SOIC-20

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جزء الشركة المصنعة ： جزء الشركة المصنعة

SN74HC245DWR

الحزمة ： الحزمة

SOIC-20 (12.8 x 10.3 x 2.45 mm)

العلامة التجارية ： العلامة التجارية
فئات المنتجات:：فئات المنتجات
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الوصف

نظرة عامة على المنتج

The SN74HC245DWR from Texas Instruments is an octal bus transceiver with 3-state outputs providing bidirectional data communication between buses. It features direction control, output enable, 12ns propagation delay, and operates from 2V to 6V in a 20-pin SOIC package.

المواصفات الرئيسية

الوظيفة Octal Bus Transceiver
القنوات 8
جهد الإمداد 2V to 6V
تأخير الانتشار 12ns (typ)
Output Drive +/-6mA @ 5V
نوع الإخراج 3-الدولة
درجة حرارة التشغيل -40 to 85 C
الحزمة SOIC-20

الميزات

  • Wide operating voltage range: 2V to 6V
  • High-current 3-state outputs drive bus lines directly
  • Low power consumption: 80uA max ICC
  • Typical propagation delay of 12ns
  • Direction control (DIR) and output enable (OE)
  • Non-inverting data path

التطبيقات

  • Microprocessor bus interfacing
  • Memory address/data bus buffering
  • Level translation between voltage domains
  • Data acquisition system bus isolation
  • Industrial control bus driving

The SN74HC245DWR from Texas Instruments is an octal bus transceiver with 3-state outputs designed for asynchronous bidirectional communication between data buses. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device, effectively isolating the buses. With a wide operating voltage range of 2V to 6V, the device is compatible with both 3.3V and 5V systems. The high-current 3-state outputs can drive bus lines directly or up to 15 LSTTL loads. Low power consumption of 80uA maximum ICC makes it suitable for power-sensitive applications. The device features a typical propagation delay of 12ns and non-inverting data path. It is available in a 20-pin SOIC package rated for -40 to 85 C operation.

The SN74HC245DWR operates as a bidirectional bus switch with tri-state outputs. Key subsystems include: (1) Direction Control Logic – the DIR input selects whether data flows from A-to-B (DIR=HIGH) or B-to-A (DIR=LOW); (2) Output Enable Logic – the active-low OE input controls the 3-state output buffers; when OE is HIGH, all outputs are high-impedance, isolating the buses; (3) Eight Bidirectional Channels – each channel consists of a pair of tri-state buffers with complementary enable logic ensuring only one direction is active at a time; (4) Input Clamp Diodes – provide protection against voltage overshoot and enable interfacing with voltages exceeding VCC through current-limiting resistors. The non-inverting architecture preserves data polarity through the transceiver.

دبوس الاسم النوع الوظيفة
1 DIR المدخلات Direction control (HIGH: A to B, LOW: B to A)
2-9 A1-A8 الإدخال/الإخراج Bus A data input/output lines
10 GND أرضي Ground connection
11-18 B8-B1 الإدخال/الإخراج Bus B data input/output lines
19 OE المدخلات Output enable (active low)
20 VCC الطاقة Power supply (2V to 6V)
  • Microprocessor system bus buffering and bidirectional data transfer
  • Memory interface address/data bus driving
  • Voltage level translation between 3.3V and 5V domains
  • Industrial control system bus isolation and multiplexing
  • Data acquisition front-end bus switching
الشركة المصنعة رقم الجزء الحزمة الملاحظات
نيكسبيريا 74HC245D SOIC-20 Pin-compatible equivalent
ON Semiconductor MC74HC245DWG SOIC-20 Pin-compatible equivalent
تكساس إنسترومنتس SN74LVC245APWR TSSOP-20 1.65-3.6V, 24mA drive
نيكسبيريا 74LVC245APW TSSOP-20 Low voltage, higher drive
تكساس إنسترومنتس SN74HCT245DWR SOIC-20 TTL input compatible
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ضمان الجودة

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

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All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

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We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

الشحن والدفع

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

الخدمة والتغليف

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
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2. Classified Professional Packaging

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  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
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  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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