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HEF4047BT

Monostable/astable multivibrator, 3-15V, retriggerable, +/-edge trigger, SOIC-14, CMOS 4000B

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制造商零件：

HEF4047BT

包装：

SOIC-14 (8.65 x 3.90 x 1.75 mm)

品牌：
产品类别：
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说明

产品概览

The HEF4047BT from Nexperia is a retriggerable monostable/astable multivibrator in a SOIC-14 package. Part of the HEF4000B CMOS logic family, it provides precision pulse generation with positive/negative edge triggering and retriggerable operation from 3V to 15V.

主要规格

功能 Monostable/Astable Multivibrator
电源电压 3 V to 15 V
Triggering Positive or Negative Edge
Retriggerable Yes
传播延迟 100 ns (typ at 15V)
工作温度 -40C to +85C

特点

  • Monostable (one-shot) or astable (free-running) operation
  • Positive- or negative-edge triggering with retriggerable option
  • True and complemented buffered outputs
  • Oscillator output available for clock generation
  • Output pulse width set by single external R and C
  • Fast recovery time independent of pulse width

应用

  • Precision timing and pulse width generation
  • Frequency generation and clock dividers
  • Missing pulse detection and watchdog timers
  • Delay generation in industrial control logic

The HEF4047BT from Nexperia is a retriggerable monostable/astable multivibrator in a SOIC-14 package, belonging to the HEF4000B CMOS logic family. The device can be configured as either a positive-edge or negative-edge triggered monostable multivibrator, or as a free-running astable multivibrator. The output pulse width is programmed by selection of external resistor (Rt) and capacitor (Ct). The device features true and complemented buffered outputs, a dedicated oscillator output, and a master reset (MR) input. In monostable mode, the output pulse width is independent of trigger pulse duration. The retriggerable option allows pulse-width expansion by applying a common pulse to the RETRIGGER and +TRIGGER inputs. In astable mode, the device operates as a free-running or gateable oscillator with 50% duty cycle at the true/complement outputs. The external counter option enables very long pulse widths using small RC components.

The HEF4047BT uses CMOS logic to implement monostable and astable timing functions. (1) Monostable Mode: An external capacitor (Ct) is connected between CTC and RCTC pins, and an external resistor (Rt) between RTC and RCTC. When triggered by a positive edge on +TRIGGER (with -TRIGGER low) or a negative edge on -TRIGGER (with +TRIGGER high), the output pulse begins. The pulse width is determined by the RC time constant: tw = 2.48 x Rt x Ct. (2) Astable Mode: A high level on the ASTABLE input enables free-running oscillation. The oscillation period is: T = 4.4 x Rt x Ct. The oscillator output (pin 13) provides a signal at twice the frequency of the main output. (3) Retriggerable: Applying a common pulse to both RETRIGGER and +TRIGGER extends the output pulse. The output remains high as long as retrigger pulses arrive before the current pulse times out. (4) Master Reset: A high level on MR terminates the output pulse immediately and prevents output during power-on conditions.

针脚 名称 类型 功能
1 CTC 模拟 External capacitor connection
2 RTC 模拟 External resistor connection
3 RCTC 模拟 Common RC junction
4 ASTABLE 输入 Astable enable (active high)
5 ASTABLE 输入 Astable complement enable
6 -TRIGGER 输入 Negative-edge trigger input
7 VSS 电源 地面
8 +TRIGGER 输入 Positive-edge trigger input
9 MR 输入 Master reset (active high)
10 O 输出 True output
11 O 输出 Complement output
12 RETRIGGER 输入 Retrigger input
13 OSC OUT 输出 Oscillator output (2x frequency)
14 VDD 电源 Supply voltage (3-15V)
  • Precision timing and pulse width generation with external RC programming
  • Frequency generation and clock dividers in astable mode
  • Missing pulse detection and watchdog timers with retrigger function
  • Delay generation in industrial control logic with master reset
制造商 部件编号 包装 说明
TI CD4047BE DIP-14 Through-hole equivalent
onsemi MC14047BDR2G SOIC-14 Direct equivalent
TI CD74HC4047EE4 DIP-14 High-speed CMOS version
Nexperia 74HC123D SOIC-16 Dual monostable, HC family
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质量保证

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.

1. Authorized & Genuine Sourcing Promise

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.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

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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

 

发货与付款

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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    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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    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
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • 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@materialparts.com

Tel / WhatsApp: +86 13760382860

服务与包装

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.

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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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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

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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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