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SN74ACT244DBR

Octal buffer/line driver, 3-state, TTL-level, SO-20

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Pieza del fabricante：

SN74ACT244DBR

Paquete：

SSOP-20

Marca：

TI

Categorías de productos：

Circuitos integrados IC

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Descripción

Productos

The SN74ACT244DBR from TI is an octal buffer/line driver with 3-state outputs in the ACT family (TTL inputs, CMOS outputs, ±24 mA drive). Two independent 4-bit sections with separate enables provide bus buffering and driving for high-capacitance loads.

Especificaciones

Función	Octal buffer/line driver with 3-state
Tensión de alimentación	4.5V to 5.5V
Retardo de propagación	8 ns at 5V
Output Drive	±24 mA (ACT)
Input Logic	TTL compatible
Paquete	SSOP-20 (5.3×7.2mm)

Principio de funcionamiento

Two 4-bit sections each have an active-low output enable (1OE, 2OE). When enabled, outputs follow inputs with 8 ns propagation delay. When disabled, outputs are high-impedance for bus sharing. ACT family combines TTL-compatible input thresholds with high-drive CMOS outputs for robust 5V bus interfacing.

Aplicaciones

5V bus buffering
Address/data driver
Memory interface
Capacitive load driving

Introducción del producto:SN74ACT244DBR Presentación del producto

The SN74ACT244DBR from TI is an octal buffer/line driver with 3-state outputs in the ACT family (TTL inputs, CMOS outputs, ±24 mA drive). Two independent 4-bit sections with separate enables provide bus buffering and driving for high-capacitance loads.

Principio de funcionamiento:SN74ACT244DBR Principio de funcionamiento

Two 4-bit sections each have an active-low output enable (1OE, 2OE). When enabled, outputs follow inputs with 8 ns propagation delay. When disabled, outputs are high-impedance for bus sharing. ACT family combines TTL-compatible input thresholds with high-drive CMOS outputs for robust 5V bus interfacing.

Descripción de la clavija:SN74ACT244DBR Definición y funciones de las clavijas

Pin	Nombre	Descripción
1	1OE	Section 1 output enable
2-5,16-19	E/S	Inputs/outputs
10	GND	Suelo
20	VCC	5V supply

Application Scenarios:In which products and applications isSN74ACT244DBR usado

5V bus buffering
Address/data driver
Memory interface
Capacitive load driving

Alternative Models:What chips are recommended as replacements for SN74ACT244DBR

Modelo	Fabricante	Diferencia clave
74HC244	Nexperia	Lower drive (±5mA)

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Garantía de calidad

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.

2. Strict Full-batch Quality Inspection

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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Envíos y pagos

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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Settlement Currency

US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.
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All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.
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Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.

Estimated Transit Time

International Express: 3 – 7 working days globally
Air Freight: 7 – 12 working days
Sea Freight: 25 – 40 working days for heavy and large bulk cargo

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MOQ & Sample Service

We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.
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All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

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5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:

Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
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Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@ic-vendor.com

Tel / WhatsApp: +86 13760382860

Servicio y embalaje

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

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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.

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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;
Shockproof buffer materials are added for fragile products to ensure transportation safety;
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Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
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@ic-vendor.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China