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GTL2014PW

4 位 LVTTL 至 GTL 收发器，3.0-3.6V，5V 容差输入，可调 Vref，DIR 引脚，TSSOP-14，-40~85°C

3000

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制造商零件：

GTL2014PW

包装：

TSSOP-14 (SOT402-1)（5.0 x 4.4 x 1.1 毫米，0.65 毫米间距）

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说明

NXP Semiconductors 的 GTL2014PW 是一款 4 位 LVTTL-to-GTL 转换收发器，采用 14 引脚 TSSOP 封装（5.0 x 4.4 mm）。它采用 3.0 V 至 3.6 V 单电源供电，典型供电电流为 4 mA。LVTTL A 端口输入具有 5.5 V 容差，GTL B 端口 I/O 工作电压高达 3.6 V，输出为开漏。方向引脚 (DIR) 可将器件配置为 GTL 至 LVTTL 采样接收器或 LVTTL 至 GTL 驱动器。VREF 在 0.5 V 至 VCC/2 之间可调，用于 GTL 门限参考。该器件支持部分掉电，并提供超过 2000 V HBM 的 ESD 保护。工作温度范围为 -40°C 至 +85°C。.

GTL2014PW 是恩智浦的一款 4 位转换收发器，设计用于将 3.3-V LVTTL 逻辑与处理器和内存控制器应用中常见的 GTL（Gunning Transceiver Logic）总线连接起来。该器件的引脚与 GTL2005 向后兼容，VREF 跟踪电压低至 0.5 V，适用于低压 CPU 接口。.

GTL 是一种开漏信号标准，使用基准电压 (VREF) 设置开关阈值。GTL 信号在 0 V（低电平）和终止电压 (VTT) 之间摆动，通常为 1.2 V 或 1.5 V，VREF 约为 VTT/2。与 LVTTL 相比，这种较低的电压摆幅可在高频率下实现更快的边沿速率和更低的功耗，从而使 GTL 成为处理器前端总线和高速存储器接口的首选。.

GTL2014 提供 4 位双向电平转换。当 DIR 为高电平时，器件从 LVTTL（A 端口）转换到 GTL（B 端口）--LVTTL 输入驱动 GTL 开漏输出。当 DIR 为低电平时，器件从 GTL（B 端口）转换到 LVTTL（A 端口）--GTL 输入根据 VREF 采样，结果显示在 LVTTL 输出上。.

A 端口 LVTTL 输入耐压高达 5.5 V，可直接连接 5 V CMOS 或 TTL 逻辑。B 端口 GTL 输入/输出为开漏，耐压高达 3.6 V，适用于标准 GTL（VTT = 1.2 V）和 GTL+ （VTT = 1.5 V）总线。VREF 引脚可接受 0.5 V 至 VCC/2 的基准电压（VCC = 3.6 V 时最大 1.8 V），适用于现代低压处理器。.

GTL2014 与 GTL2005 向后兼容，但两个器件的 A 端口和 B 端口标签互换。从 GTL2005 迁移过来的设计人员应注意这一引脚互换。GTL2014 改进了 0.8 V 以下的 VREF 线性度，传播延迟稍长，这是它与 GTL2005 的不同之处。.

**GTL 信号接口：** GTL 使用开漏驱动器，具有上拉至 VTT（通常为 1.2 V 或 1.5 V）的电阻。接收器将 GTL 总线电压与 VREF（约为 VTT/2）进行比较，以确定逻辑电平。当驱动器将总线拉至 VREF 以下时，接收器会检测到低电平。当驱动器释放时，上拉电阻将总线拉至 VREF 以上，接收器检测到高电平。.

**方向控制（DIR 引脚）：** DIR 为高电平时，A 端口 LVTTL 输入驱动 B 端口 GTL 开漏输出。A 端口输入高电平会导致相应的 B 端口输出下拉（在 GTL 总线上断言为低电平）；A 端口输入低电平会释放 B 端口输出（通过外部端接将 GTL 总线拉高）。当 DIR 为低电平时，B 端口 GTL 输入与 VREF 比较，结果驱动 A 端口 LVTTL 推挽输出。.

**VREF 参考电压：** VREF 引脚确定 GTL 接收器的开关阈值。它必须连接到干净的基准电压，通常通过电阻分压器从 VTT 导出。GTL2014 的 VREF 可精确跟踪至 0.5 V，支持低电压 CPU 内核。.

**部分掉电：** I/O 引脚设计用于在不使用 VCC 时承受电压，防止在热插拔和电源接续情况下出现回流电流损坏。.

针脚 名称 类型 说明
1 1A 输入/输出 LVTTL I/O 第 0 位；5.5V 容差输入；DIR=低时推挽输出（GTL 至 LVTTL）。
2 2A 输入/输出 LVTTL I/O 位 1；特性与 1A 相同
3 3A 输入/输出 LVTTL I/O 位 2
4 4A 输入/输出 LVTTL I/O 位 3
5 DIR I 方向控制；高电平 = LVTTL 至 GTL（A 驱动 B）；低电平 = GTL 至 LVTTL（B 驱动 A）；总线激活时不变
6 接地 G 地面
7 VREF I GTL 基准电压输入；0.5V 至 VCC/2；设置接收器阈值；连接至源自 VTT 的干净基准电压
8 1B 输入/输出 GTL I/O 第 0 位；开漏输出；3.6V 容差；接收时与 VREF 比较
9 2B 输入/输出 GTL I/O 位 1
10 3B 输入/输出 GTL I/O 位 2
11 4B 输入/输出 GTL I/O 位 3
12-14 GND/NC G/- 接地/无连接
应用 说明
处理器前端总线接口 将 3.3V LVTTL 芯片组逻辑连接至 GTL/GTL+ 处理器总线；DIR 引脚由芯片组控制；VREF 设置为 VTT/2（GTL+ 为 0.65V）；4 位覆盖地址/数据线；使用多个设备实现更宽的总线
内存控制器 GTL 总线 在 3.3V 内存控制器和 GTL 端接的 DRAM 总线之间转换；开漏 B 端口驱动 GTL 端接电阻器；VREF 源自 VTT 电源；方向引脚在读写周期之间切换
模型 制造商 兼容性 主要区别
GTL2005PW 恩智浦 遗产前身 4 位 LVTTL 至 GTL 收发器；相同的 TSSOP-14 基底面；A/B 端口标签与 GTL2014 互换；VREF 低于 0.8V；传播延迟更短；仅用于传统的无须改造的替代品
GTL2010PW 恩智浦 系列变体（2 位） 2 位 LVTTL 至 GTL 收发器；较小的 TSSOP-8 封装；相同的电气特性；用于较窄的 GTL 总线
SN74GTL2014PWR TI 功能等效 4 位 LVTTL 至 GTL 收发器；TSSOP-14；规格相似；TI 提供的替代品；替代前请验证引脚输出的兼容性
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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@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.

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:
  1. Logistics Partners
  • 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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  • Shipping cost is calculated based on package weight, volume, destination and delivery method.
  • 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.

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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.

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5. Local Pickup in Shenzhen

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

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Professional Packaging Standards

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  • 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.
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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@materialparts.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

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