USB2514BI-AEZG-TR - 4-Port USB 2.0 Hub Controller | Microchip
料号： USB2514BI-AEZG-TR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.66 | $26.60 |
| 100 | $2.3 | $230.00 |
| 500 | $2.07 | $1,035.00 |
| 1,000 | $1.86 | $1,860.00 |
USB2514BI-AEZG-TR 概述
A USB hub controller is an interface IC that fans out a single upstream USB port into multiple downstream ports, handling enumeration, transaction translation between USB 2.0 Hi-Speed (480 Mbps) and Full-/Low-Speed (12/1.5 Mbps) devices, and power management for each port. Within the system hierarchy, it sits in the USB protocol layer between a host controller and the downstream peripherals, making it a critical building block in embedded USB solutions, docking stations, and instrumentation front ends.
Key features include MultiTRAK technology, which assigns an independent transaction translator to every downstream port so mixed-speed devices do not block each other; I2C/SMBus and strapping-pin configuration options; industrial temperature support from -40C to +85C on the BI variant; and integrated battery-charging support on family members. Flexible OEM configuration via an external EEPROM or SMBus allows custom VID/PID, string descriptors, and port mapping without firmware development.
Architecturally, the device leverages Microchip MultiTRAK technology for industry-leading data throughput in mixed-speed USB environments, and per Microchip documentation the family members are pin-compatible direct drop-in replacements for one another, using the same PCB components. The 36-QFN exposed-pad package supports good thermal and ground integrity for the 480 Mbps PHY.
Typical applications include industrial USB ports on factory equipment and PLCs, medical instrument and test-equipment front panels, PC peripherals and docking hardware, and embedded host expansion in automotive-adjacent industrial systems that need robust USB connectivity.
Design consideration: use the industrial-grade BI variant only if the full -40C to +85C range is required; the commercial B variant may reduce cost where 0C to 70C suffices, and both are pin-compatible drop-ins.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： USB2514BI-AEZG-TR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： USB2514BI-AEZG-TR （相同外形与封装尺寸） ——差异在于 Battery Charging Support, Number of Downstream Ports.
快速对比工具——选择替代料号进行并排对比：
USB2514B-AEZG-TR
✅ 直接替换📋 参考替代料（不在目录中）
USB2514BI-AEZG
✅ 直接替换📋 参考替代料（不在目录中）
USB2514B-AEZC-TR
✅ 直接替换📋 参考替代料（不在目录中）
USB2513BI-AEZG
✅ 直接替换📋 参考替代料（不在目录中）
USB2513B-AEZC-TR
✅ 直接替换✓ 有现货
$2.78 / 个
查看数据手册 →USB2514BI-AEZG-TR 规格参数
| Device Type | USB 2.0 Hub Controller |
| Number of Downstream Ports | 4 |
| USB Standard | USB 2.0 Hi-Speed |
| 数据速率 | 480 Mbps (Hi-Speed) |
| Transaction Translator | MTT (Multi Transaction Translator) |
| 电源电压 | 3.3 V |
| Configuration Interface | I2C / SMBus / strapping pins / EEPROM |
| 工作温度 | -40C to +85C |
| Package Type | 36-QFN (6x6 mm), 0.50 mm pitch, exposed pad |
| 安装类型 | Surface Mount |
| Battery Charging Support | Yes (USB251xB/xBi family feature) |
| RoHS 状态 | Compliant |
| Packaging | Tape & Reel (TR) |
| Technology | MultiTRAK architecture |
| Application Segment | Industrial (BI grade) |
USB2514BI-AEZG-TR 36-qfn (6x6 mm), 0.50 mm pitch, exposed pad 引脚配置指南
USB2514BI-AEZG-TR（36-qfn (6x6 mm), 0.50 mm pitch, exposed pad 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： USB2514BI-AEZG-TR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
USB2514BI-AEZG-TR 适用于 6 应用s: Industrial Automation USB Ports, Test and Measurement Instruments, Medical Device Connectivity, Embedded Host Expansion, PC Peripherals and Docking Hardware, Networking and Communications Equipment.
Industrial Automation USB Ports
Factory automation equipment, PLCs, and HMIs frequently expose multiple USB ports for configuration dongles, data loggers, and diagnostics in environments ranging from -40C to +85C. The USB2514BI-AEZG-TR fits this role precisely because its industrial temperature grade covers the full -40C to +85C envelope, unlike the commercial USB2514B. Its MultiTRAK MTT architecture gives each downstream port an independent transaction translator, so a slow 12 Mbps diagnostic adapter never stalls a 480 Mbps flash drive on the same panel. Configured via strap pins or an SMBus-connected MCU, the hub enumerates automatically with custom VID/PID descriptors stored in EEPROM. Placed on the host 3.3 V rail with the exposed-pad QFN grounded for PHY signal integrity, it delivers four robust Hi-Speed ports at 480 Mbps from a single upstream connection.
推荐
Test and Measurement Instruments
Bench instruments, data-acquisition chassis, and modular test systems need front-panel USB ports for USB flash export and PC connectivity, often in rack environments with elevated ambient temperatures approaching the 85C upper limit of the -40C to +85C industrial range. The USB2514BI-AEZG-TR provides four downstream 480 Mbps ports from one upstream host link, and its per-port transaction translators keep a low-speed front-panel device from monopolizing the bus while a Hi-Speed storage device streams data. Its 36-QFN (6x6 mm) footprint suits the dense PCB area behind instrument front panels, and I2C/SMBus configuration lets the instrument MCU change descriptors or port behavior at boot. OEM string descriptors and product IDs are loaded from a small EEPROM, eliminating firmware development.
推荐
Medical Device Connectivity
Medical monitors, diagnostic carts, and laboratory analyzers aggregate USB peripherals - printers, barcode scanners, storage - through a hub controller that must enumerate reliably and isolate mixed-speed traffic. The USB2514BI-AEZG-TR serves this role with its MTT per-port transaction translation, ensuring a low-speed scanner does not delay Hi-Speed sample-data transfer at 480 Mbps. Its industrial -40C to +85C rating covers sterilization-adjacent and cold-chain storage conditions, and the 3.3 V supply integrates cleanly with battery-backed medical electronics. Configuration through SMBus allows the device main controller to query hub status and manage per-port power, supporting the controlled power-up sequences required in medical systems. The RoHS-compliant exposed-pad QFN-36 aids thermal dissipation inside sealed enclosures.
推荐
Embedded Host Expansion
Embedded Linux or RTOS hosts built around MCUs and SoCs typically expose only one USB OTG port; adding peripheral connectivity requires a hub controller. The USB2514BI-AEZG-TR expands a single upstream USB 2.0 port into four downstream 480 Mbps ports, and because it handles enumeration autonomously, no hub driver customization is needed on the host. Its strap-pin configuration mode enables zero-EEPROM designs for cost-sensitive embedded boards, while EEPROM or SMBus modes support custom OEM descriptors for branded products. The MultiTRAK architecture keeps each port's transaction translation independent, important when mixing a Full-Speed Wi-Fi dongle with Hi-Speed storage. The 6x6 mm QFN conserves board area on compact embedded platforms operating across -40C to +85C.
推荐
PC Peripherals and Docking Hardware
Monitor hubs, keyboard docking stations, and peripheral clusters use hub controllers to offer multiple USB ports behind one cable. The USB2514BI-AEZG-TR is equally suited to this market, where its four Hi-Speed 480 Mbps downstream ports and per-port MTTs ensure a mouse, keyboard, webcam, and external drive coexist without throughput contention. Although this BI variant is industrial-graded, it is pin-compatible with the commercial USB2514B-AEZG-TR, so one PCB can be populated with either part to cover extended-environment SKUs. The 3.3 V supply and low-power USB251xB family design reduce standby consumption for bus-powered docks, and battery-charging support in the family enables charging-capable downstream ports where the design requires it.
推荐
Networking and Communications Equipment
Routers, gateways, and telecom equipment use USB ports for LTE modems, recovery images, and service access, typically in closed enclosures with elevated internal temperatures. The USB2514BI-AEZG-TR supplies the needed port expansion: one upstream 480 Mbps link from the network SoC fans out to four downstream ports, with per-port transaction translation preventing a management console dongle from slowing a modem data link. Its -40C to +85C rating addresses outdoor and unconditioned telecom cabinets, and the 36-QFN (6x6 mm) exposed-pad package maintains ground integrity for the Hi-Speed PHY alongside noisy switching circuitry. SMBus configuration lets the equipment processor set custom product IDs, and the RoHS-compliant construction meets global network-equipment environmental directives.
推荐
推荐产品汇总
工程参考数据： USB2514BI-AEZG-TR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | USB2514B-AEZG-TR | USB2514BI-AEZG | USB2513BI-AEZG |
|---|---|---|---|---|
| Package | 36-QFN (6x6 mm, 0.5 mm pitch, EP) | 36-QFN (6x6 mm) - same | 36-QFN (6x6 mm) - same | 36-QFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Downstream Ports | 4 | 4 | 4 | 3 |
| USB Data Rate | 480 Mbps (Hi-Speed) | 480 Mbps (Hi-Speed) | 480 Mbps (Hi-Speed) | 480 Mbps (Hi-Speed) |
| Operating Temperature | -40C to +85C | 0C to +70C | -40C to +85C | -40C to +85C |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Configuration | Strap pins / SMBus / I2C / EEPROM | Strap pins / SMBus / I2C / EEPROM | Strap pins / SMBus / I2C / EEPROM | Strap pins / SMBus / I2C / EEPROM |
| Packaging | Tape & Reel | Tape & Reel | Tray | Tray |
关键差异点
- Industrial temperature range （对比 USB2514B-AEZG-TR)
- Four downstream ports with per-port MTT （对比 USB2513BI-AEZG)
- Same die, Tape & Reel for automated assembly （对比 USB2514BI-AEZG)
设计说明
The 36-QFN exposed pad must be soldered to a grounded copper pour with an array of thermal vias; this pad is the main ground return for the 480 Mbps USB PHY, and an unsoldered pad commonly causes eye-diagram failures and enumeration errors on Hi-Speed ports. Keep USB D+/D- pairs as 90-ohm differential pairs with matched lengths, routed on an adjacent ground plane. Per the USB251xB/xBi datasheet, family members are pin-compatible drop-ins, so locking the footprint to this QFN-36 lets you switch between commercial and industrial grades without a respin.
Power the hub from a clean 3.3 V rail. Estimate total consumption: USB251xB-family controllers typically draw tens of milliamps at 3.3 V under Hi-Speed traffic (verify the exact figure in the datasheet electrical characteristics table, as it was not captured in the data available for this page). Ensure the 3.3 V rail is sequenced before or with the upstream VBUS detection and place 0.1 uF decoupling capacitors at each supply pin plus bulk capacitance near the exposed pad. Per-port downstream power switching should use the hub's power-control outputs with external power switches if bus-power budgeting applies.
Do not mix commercial and industrial parts in the same production run without checking temperature requirements - the USB2514B (0C to +70C) and USB2514BI (-40C to +85C) share a pinout but differ in grade. Also note that Microchip documentation states product IDs, device IDs, and some register defaults may differ between family members (Section 5.1 of the family datasheet), so firmware or host drivers that match on exact VID/PID may need updating after a drop-in substitution. If EEPROM configuration is used, verify the EEPROM image matches the specific part's register map.
合规信息
RoHS compliance stated by digchip specification listing (ROHS COMPLIANT, QFN-36) and JLCPCB listing. REACH, halogen-free, and conflict-minerals status not stated in provided data.
