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ICM7555IPA

CMOS 555 timer, 3-16V, 80uA Iq, 500kHz, rail-to-rail output, 8-PDIP

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制造商零件：

ICM7555IPA

包装：

8-PDIP

品牌：
产品类别：
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说明

产品概览

The ICM7555IPA from NXP Semiconductors is a CMOS general-purpose timer that directly replaces the bipolar NE555 while offering significantly improved performance: 80uA supply current, 20pA input currents, 500kHz maximum frequency, and rail-to-rail output. Packaged in 8-pin PDIP.

主要规格

电源电压 3V to 16V
Supply Current 80uA (typ)
Trigger/Threshold Current 20pA (typ)
Maximum Frequency 500kHz (guaranteed)
Timing Stability 0.005%/C (typ)
Output Swing Rail-to-rail
包装 8-PDIP
工作温度 -40 to +85 C

特点

  • Direct replacement for NE/SE555 in most applications
  • Ultra-low supply current: 80uA typical
  • Extremely low input currents: 20pA typical
  • Rail-to-rail output swing
  • No supply crowbarring during output transitions
  • No CONTROL VOLTAGE bypass capacitor required
  • 500kHz guaranteed maximum frequency

应用

  • Precision timing and pulse generation
  • Low-power oscillator circuits
  • Battery-powered timing applications
  • PWM and PPM modulation

The ICM7555IPA from NXP Semiconductors is a CMOS version of the classic 555 timer that provides significantly improved performance over the bipolar NE555. Key improvements include 80uA supply current (vs 3mA for NE555), 20pA trigger and threshold input currents (vs 100nA), 500kHz maximum oscillation frequency (vs 100kHz), and rail-to-rail output swing. The CMOS design eliminates the supply current crowbarring that occurs during NE555 output transitions, and the CONTROL VOLTAGE pin does not require a bypass capacitor. These features make the ICM7555 ideal for battery-powered and precision timing applications.

The ICM7555 uses CMOS comparators and a CMOS flip-flop instead of bipolar equivalents. Two comparators monitor the THRESHOLD and TRIGGER pins against internal voltage dividers at 2/3 VDD and 1/3 VDD respectively. In monostable mode, a trigger pulse below 1/3 VDD sets the flip-flop, driving the output high and releasing the discharge transistor. The timing capacitor charges through the external resistor until it reaches 2/3 VDD, which resets the flip-flop. In astable mode, the capacitor charges and discharges between 1/3 and 2/3 VDD through external resistors. The CMOS output stage swings rail-to-rail, unlike the NE555 which drops 1.5-2.5V from the rails.

针脚 名称 功能
1 接地 地面
2 TRIGGER Trigger input (active low, <1/3 VDD)
3 OUTPUT Output (rail-to-rail swing)
4 重置 Reset input (active low)
5 CONTROL VOLTAGE Modulation/adjustment input (no bypass cap needed)
6 THRESHOLD Threshold input (compares to 2/3 VDD)
7 DISCHARGE Open-drain discharge output
8 VDD Positive supply (3-16V)
  • Battery-powered timer circuits with 80uA supply current for long battery life
  • High-frequency oscillators up to 500kHz using high-impedance timing components
  • Precision timing with 0.005%/C stability without external bypass capacitor
  • PWM motor speed control with rail-to-rail output for maximum drive voltage
模型 制造商 主要区别
NE555P TI Bipolar, higher current drive, higher Iq
TLC555CP TI CMOS 555, 2MHz max, similar to ICM7555
LMC555CN TI CMOS 555, 1.5V min supply
ICM7556 恩智浦 Dual CMOS 555 timer
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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:
  • 汽车电子: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
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  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

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.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

6. After-sales Quality Guarantee

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.

联系我们

If you have inquiries about our quality standards, inspection procedures or product certification documents, 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

 

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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  1. Settlement Currency

     

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

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  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

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  • Economy Logistics: Air freight and sea freight for large-volume cargo
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  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
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  • Air Freight: 7 – 12 working days
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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.

  2. Packaging Standard

     

    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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    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
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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.

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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  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
  • 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.
  • 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@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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