Highlights
- High performance, low-power, small footprint hub controller IC with 2, 3, 4, or 7 downstream ports (indicated by the “x” in the part number)
- Fully compliant with the USB 2.0 specification
- Enhanced OEM configuration options available through either a single serial I2C® EEPROM, or SMBus slave port
- MultiTRAK™ - High-performance multiple transaction translator which provides one transaction translator per port
- PortMap - Flexible port mapping and disable sequencing
- PortSwap - Programmable USB differential-pair pin locations ease PCB design by aligning USB signal lines directly to connectors
- PHYBoost - Programmable USB signal drive strength for recovering signal integrity using 4-level driving strength resolution
Features
- Full power management with individual or ganged power control of each downstream port
- Fully integrated USB termination and pull-up/pulldown resistors
- Supports a single external 3.3 V supply source; internal regulators provide 1.8 V internal core voltage
- Onboard 24 MHz crystal driver, ceramic resonator, or external 24/48 MHz clock input
- Customizable vendor ID, product ID, and device ID
- 4 kilovolts of HBM JESD22-A114F ESD protection (powered and unpowered)
- Supports self- or bus-powered operation
- Lead-free RoHS compliant packages:
- 36-pin QFN (6x6 mm)
- 48-pin QFN (7x7 mm)
- 64-pin QFN (9x9 mm)
- USB251xi and USB2512Ai products support the industrial temperature range of -40°C to +85°C
Target Applications
- Mobile PC Docking Stations
- LCD Monitors/TVs
- PC Motherboards
- Gaming Consoles
- Multi-Function Printers
- Cable/DSL Modems
- Set-Top Boxes
- DVD/CD-ROM/DVR
- HDD Enclosures
- Keyboards
- KVM Switches
- Server Front Panels
- Point-of-Sale (POS) Systems
- IP Telephony
- Automobile/Home Audio Systems
- Industrial
尽管我们已经对本文件中的所有信息进行了检查并确信信息的准确性，但对信息的不准确之处不负任何责任。SMSC 保留随时对产品说明和规范进行更改而不事先通知的权利。请在提交产品订单之前联系您当地的 SMSC 销售处索取最新规范。此处提供的信息并不表示会转让 SMSC 或其他各方的受专利法保护的许可证或其他知识产权。双方明确，所有的销售活动均以购买方在下订单前接受 SMSC 公司的最新版本标准销售协议条款为前提条件。产品可能包含设计缺陷或错误等不规则情况，而这会导致产品的功能与发布的规格不同。如果要求，我们会为您提供不规则情况表。SMSC 产品不设计用于, 意在用于, 授权或保证用于因产品故障可能直接或间接导致人身伤害或严重资产损失的任何生命维系或其他应用。若由于未经 SMSC 官员事先书面同意而用于此类用途和/或进一步测试和/或修改而导致的风险，由客户自行承担。本文件或其他 SMSC 资料以及销售协议条款的副本可以从 SMSC 的网站 http://www.smsc.com 获得。SMSC 和 SMSC 徽标是 Standard Microsystems Corporation ("SMSC") 的注册商标。其他提及的名称可能是其相应持有者的商标。此处的所有声明均截至本资料的发布之日。公司不承担更新这些声明的责任。
