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NC7SZ66P5X

SPST 总线开关，1.65-5.5V，5Ω Ron，亚毫微秒延迟，轨至轨，SC-70-5，OE 有源高电平

2290

有效库存
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制造商零件：

NC7SZ66P5X

包装：

SC-70-5 / SOT-353 / SC-88A（2.0 x 1.25 x 1.0 毫米，0.65 毫米间距）

品牌：
产品类别：
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发货与付款
服务与包装
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说明

Onsemi（原飞兆半导体）的 NC7SZ66P5X 是 TinyLogic UHS 系列的单刀单掷 (SPST) 总线开关，采用 5 引脚 SC-70 封装 (2.0 x 1.25 mm)。它的工作电压为 1.65 V 至 5.5 V，典型导通电阻为 5 Ω，具有轨至轨信号处理能力，在 5 V 电压下具有亚纳秒级传播延迟。开关在 OE 为高电平时启用（将端口 A 连接到端口 B），在 OE 为低电平时断开。掉电高阻抗 I/O 可防止回流电流。工作温度范围为 -40°C 至 +85°C。后缀 P5X 表示 3000 个 SC-70 卷带。.

Onsemi TinyLogic UHS 系列的 NC7SZ66 是采用超小 SC-70-5 封装的单位 SPST 总线开关。NC7SZ66P5X 是卷带式版本，每卷有 3000 个单元。该器件最初由 Fairchild Semiconductor（现为 onsemi 的一部分）设计，可在两个端口之间提供一条低阻抗直通路径，并将传播延迟降至最低。.

当输出使能（OE）引脚为高电平时，开关闭合，端口 A 通过约 5 Ω 连接到端口 B。当 OE 为低电平时，开关打开，两个端口之间处于高阻抗状态。开关可处理 0 V 至 VCC（轨至轨）的信号，5 Ω 的导通电阻为典型逻辑信号带来的压降可忽略不计。.

与缓冲器相比，总线开关的主要优势在于除通过导通电阻和负载电容的 RC 延迟外，传播延迟为零。在 5 V 电压下，通过开关的传播延迟通常为 0.3 ns，因此对时序预算基本没有影响。.

该器件支持高达 7 V 的过压容限输入，实现了不同逻辑域之间的电压转换。当 VCC 为 0 V 时，所有 I/O 引脚都会进入高阻抗状态，从而防止部分供电系统中的回流电流，这对于热插拔和电源顺序应用至关重要。.

NC7SZ66 有三种封装：SC-70-5 (P5X)、SOT-23-5 (M5X) 和 MicroPak-6 (L6X)。SC-70-5 版本仅占 2.5 平方毫米的电路板面积。.

注：一些分销商将 NC7SZ66P5X 列为过时产品，但仍有多个渠道提供。在设计新产品之前，请核实当前的供货情况。.

**CMOS 传输栅极：** NC7SZ66 采用 CMOS 传输栅极（并联 NMOS + PMOS）作为开关元件。NMOS 通过 VCC 端附近的信号，而 PMOS 则通过 GND 端附近的信号。它们共同提供轨至轨信号处理功能，在整个电压范围内具有相对平坦的导通电阻。典型的 5 Ω 导通电阻是两个晶体管的并联组合。.

**OE 控制逻辑：** 当 OE 为高电平时，NMOS 和 PMOS 栅极都会被驱动以接通各自的晶体管，从而在 A 和 B 之间创建一条低阻抗路径。当 OE 为低电平时，两个晶体管都会关闭，从而以高阻抗和低离态漏电流（< 1 nA 典型值）隔离两个端口。 **过压容限：** 输入和 I/O 引脚集成了电路，可独立于 VCC 承受高达 7 V 的电压。当开关端口上出现高于 VCC 的电压时，连接 VCC 的内部 ESD 二极管会反向偏置，防止电流流入 VCC 轨。 **断电高阻抗：** VCC 为 0 V 时，内部电路会禁用开关，并将所有 I/O 置于高阻抗状态，防止端口之间的任何电流路径或电流流入电源。这使得热插拔和实时插入应用成为可能。.

针脚 名称 类型 说明
1 OE I 输出使能（高电平有效）；高电平 = 打开开关（A 连接到 B）；低电平 = 打开开关（A 和 B 之间的高 Z）；7V 容差；CMOS 输入电平
2 A 输入/输出 开关端口 A；双向；0 至 VCC 信号范围；启用时为 5Ω Ron 至端口 B；6pF I/O 电容；禁用或断电时为高 Z
3 接地 G 接地；连接至 PCB 地平面
4 B 输入/输出 开关端口 B；双向；与端口 A 的特性相同；信号可从任一方向通过
5 VCC P 电源电压；1.65V 至 5.5V；使用 0.1µF 陶瓷旁路至 GND；开关信号范围为 0 至 VCC
应用 说明
总线隔离/热插拔 在插卡期间隔离 I2C/SPI 总线段；OE 由卡检测信号控制；断电高 Z 值可防止回流；5Ω Ron 增加的延迟可忽略不计；多 NC7SZ66 用于多位总线
电压域隔离 睡眠期间断开 3.3V 外设与 1.8V MCU 的连接；从 GPIO 开始 OE；轨到轨信号处理；开关路径上的零静态功耗
胶合逻辑信号转向 使用 SPST 开关在两个目的地之间路由一个信号；传播延迟极小（0.3ns@5V），可保持定时；取代多路复用器，实现简单的 1:1 路由
模型 制造商 兼容性 主要区别
NC7SB6P5X onsemi 系列变体（反转） 反相总线开关；相同的 SC-70-5 封装；信号在 A 和 B 之间反相；需要反相路径时使用
sn74lvc1g66dckr TI 功能等效 SPST 总线开关；1.65-5.5V；10Ω Ron；SC-70-5；更高 Ron；源自 TI 的替代品
NC7SZ66M5X onsemi 包装变体 采用 SOT-23-5 封装，功能相同；占地面积较大，但易于手工焊接；引脚布局不同
74AUC1G66DW-7 二极管公司 竞争性替代方案 SPST 开关；0.8-3.6V；Ron 电压较低；工作范围较小；用于超低压应用
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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.
  • 医疗设备: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
  • 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@ic-vendor.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.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
  1. Accepted Payment Methods
  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
  • PayPal: Ideal for small orders, sample orders and quick payments.

  1. Settlement Currency

     

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

  2. Bank Charges

     

    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

  3. Payment Requirements
  • Sample and small orders: Shipment will be arranged upon full payment.
  • In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.

2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
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  • International Express: DHL, FedEx, UPS, TNT
  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
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  • 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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  • Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
  1. Shipment Tracking
     

    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. 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.

  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.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    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.

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  • 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.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

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.
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Contact Information

Email: info@ic-vendor.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.

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2. Genuine Product Guarantee & Full-process Quality Inspection

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Professional Packaging Standards

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  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
  • Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
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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
 

Online Inquiry Form

Support Excel, PDF, CSV format files for full BOM list quotation

Submit your component procurement and custom packaging needs via the form below. We will provide a detailed quotation and professional solution within 1–8 working hours.

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