TUSB2040N - 4-Port USB 1.0 Hub Controller | Texas Instruments
部品番号: TUSB2040N ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TUSB2040N 概要
A USB hub controller is an interface IC that connects one upstream USB port to multiple downstream ports, allowing peripherals to share a host controller. Within the hierarchy of USB interface devices, transceiver, hub controller, interface IC, and semiconductor, the TUSB2040N provides the logic and physical connectivity for expanding USB 1.0 equipment. Its integrated transceivers reduce the need for separate USB transceiver circuitry on the hub board.
The principal verified features are four downstream ports, integrated USB transceivers, USB 1.0 compliance, self-powered operation, bus-powered operation, per-port power switching, overcurrent reporting, per-port or ganged power modes, and suspend support. These functions suit hubs where the host must enumerate multiple peripherals and where each downstream port needs controllable power. The retrieved distributor listing describes the part as an interface controller, while the family datasheet result specifically identifies four-port USB hub functionality.
The TUSB2040N is intended for USB 1.0 hub designs, including peripheral expansion, legacy computer interfaces, industrial equipment, and embedded systems that use multiple low-speed, full-speed, or compatible USB devices. Its architecture places port power management close to the USB interface, allowing the design to report overcurrent conditions and manage downstream power distribution. Exact propagation delays, operating voltage, maximum downstream current, and USB data-rate details are not present in the verified web data and must be confirmed from the manufacturer datasheet before a new design is released.
For implementation, follow the TUSB2040 family datasheet for pin assignments, transceiver connections, power-source selection, capacitor values, and port-power topology. Pay particular attention to upstream and downstream USB differential routing, ground-plane continuity, and current-limit behavior. Because the verified record lists a PDIP package, verify physical dimensions and pin orientation against the actual manufacturer drawing rather than relying only on distributor metadata.
This page combines the verified distributor and datasheet-search records with clearly marked missing-data fields. It does not infer prices, lifecycle claims, pin names, or electrical limits that were not supplied. Buyers should request a quotation for current commercial availability and confirm the exact package, ordering suffix, and production status with Texas Instruments before committing a design to production.
ドロップイン代替品: TUSB2040N — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
TUSB2040N
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データシートを見る →TUSB2040
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TUSB2040N 仕様
| Product Type | USB hub controller interface IC |
| USB Compliance | Universal Serial Bus version 1.0 compliant |
| Downstream Port Count | 4 ports |
| Integrated Transceivers | Integrated USB transceivers |
| Power Source Modes | Self-powered mode and bus-powered mode |
| Power Switching | Power switching provided per port |
| Overcurrent Reporting | Per-port overcurrent reporting |
| Port Power Configuration | Per-port or ganged |
| Suspend Support | Ganged suspend |
| パッケージ | PDIP-28 |
| Manufacturer | Texas Instruments |
| Interface Classification | USB interface controller |
| Downstream Port Topology | Four downstream ports |
TUSB2040N pdip-28 ピン配置ガイド
TUSB2040N (pdip-28 パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: TUSB2040N.
詳細は データシート をご参照ください。
主な用途
TUSB2040N の用途: 6 件s: Legacy USB 1.0 Peripheral Hub, Embedded USB Expansion, Industrial USB Equipment Hub, USB-to-Serial Adapter Hub, Computer Peripheral Sharing, USB Configuration and Service Hub.
Legacy USB 1.0 Peripheral Hub
The TUSB2040N fits a legacy USB 1.0 hub because it provides four downstream ports and integrated USB transceivers in one interface controller. A host computer can use one upstream connection while the hub distributes peripheral access across four downstream ports. Its verified power-source support allows the designer to evaluate self-powered operation for multiple attached devices or bus-powered operation where the available USB bus power is sufficient. The designer must still verify current limits, startup sequencing, and enumeration behavior in the manufacturer datasheet.
おすすめ
Embedded USB Expansion
An embedded controller can use the TUSB2040N to add USB connectivity when the system needs more peripheral attachment points than the host provides. The four downstream ports are useful for keyboards, storage devices, data-acquisition peripherals, and configuration interfaces. Integrated transceivers simplify the physical USB implementation, while per-port or ganged power configuration helps the designer manage downstream loads. The exact host-side requirements, operating voltage, and USB data-rate limits must be confirmed before integrating the hub with a specific embedded processor.
おすすめ
Industrial USB Equipment Hub
The TUSB2040N is applicable to industrial USB equipment that needs a protected four-port expansion interface. Industrial systems may connect a controller, service interface, sensor bridge, and diagnostic peripheral to one upstream USB connection. The controller's overcurrent reporting and power switching functions support safer downstream power management, while self-powered mode can be preferable when several devices require more power than the host bus can provide. Industrial qualification, temperature limits, and electrical thresholds are not present in the verified data and require manufacturer confirmation.
おすすめ
USB-to-Serial Adapter Hub
The TUSB2040N can serve as the hub controller in a multi-port USB-to-serial or USB-to-data acquisition system. Four downstream USB connections allow multiple adapters to share one host port, and integrated transceivers reduce the number of separate physical-layer devices in the hub design. The design must account for the aggregate current required by all adapters, especially in bus-powered operation. Per-port power switching and overcurrent reporting help isolate faults, while ganged operation may be useful when all adapters must power down together.
おすすめ
Computer Peripheral Sharing
The TUSB2040N is suitable for a basic computer peripheral-sharing hub built around USB 1.0 equipment. A single upstream USB connection can be expanded to four downstream ports for keyboards, mice, printers, storage, or other compatible peripherals. The integrated transceivers support direct hub implementation, and the choice between per-port and ganged power modes allows the designer to match the behavior of the attached devices. Validate USB enumeration, suspend behavior, connector protection, and supply-current requirements against the complete manufacturer documentation.
おすすめ
USB Configuration and Service Hub
The TUSB2040N can organize configuration, service, and diagnostic USB connections in one enclosure. Four downstream ports provide a structured way to separate a local control interface from measurement or maintenance peripherals. The controller's per-port or ganged power choices allow the system designer to implement selective shutdown or coordinated suspend behavior. Because the verified data does not state operating voltage, temperature limits, or package pin functions, these values must be obtained from the current Texas Instruments datasheet before schematic signoff.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TUSB2040N — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TUSB2040N | TUSB2040 |
|---|---|---|---|
| Product Type | Four-port USB 1.0 hub controller | Four-port USB 1.0 hub controller | TUSB2040 family hub controller |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| USB Compliance | USB version 1.0 compliant | USB version 1.0 compliant | USB version 1.0 compliant family reference |
| Downstream Ports | 4 ports | 4 ports | 4 ports family reference |
| Integrated USB Transceivers | Yes | Yes | Yes family reference |
| Power Source Modes | Self-powered and bus-powered | Self-powered and bus-powered | Self-powered and bus-powered family reference |
| Power Switching | Per port or ganged | Per port or ganged | Per port or ganged family reference |
主な差別化要因
- Integrated USB transceivers （vs TUSB2040)
- Four downstream USB ports （vs TUSB2040)
- Self-powered and bus-powered operation （vs TUSB2040)
- Per-port and ganged power management （vs TUSB2040)
- Overcurrent reporting （vs TUSB2040)
設計ノート
Route each upstream and downstream USB differential pair over a continuous reference plane and keep the two conductors coupled with matched geometry. Minimize stubs, test pads, and unnecessary layer changes because discontinuities can degrade USB signal integrity. The verified data confirms integrated transceivers but does not provide trace-impedance values, so use the manufacturer implementation guidance and USB connector requirements for final dimensions.
Determine whether the hub will use self-powered or bus-powered operation before laying out the power tree. The TUSB2040N supports both modes and also supports per-port or ganged power switching, but the supplied data does not state current limits. Calculate the worst-case aggregate downstream demand, add startup and fault margins, and verify connector, switch, protection-device, and supply ratings using the authoritative manufacturer datasheet.
Do not infer pin functions from the package name or from a generic USB hub schematic. The verified distributor record identifies a PDIP-28 package, while the complete pin table is not supplied. Obtain the manufacturer pinout, confirm upstream and downstream USB differential pairs, ground references, power inputs, mode controls, suspend signals, and port-power connections before fabrication. Also verify whether the selected distributor listing represents an active or historical device variant.
Keep the USB connector, protection network, hub transceiver, and ground-return structures close together to limit radiated emissions and susceptibility problems. Provide a low-impedance ground reference beneath the USB data routes and use the manufacturer-recommended filtering and decoupling arrangement. The supplied data does not specify EMI test results or component values, so any additional filtering must be validated with the complete system rather than treated as a guaranteed requirement.
Use the hub's per-port or ganged configuration to match downstream startup and suspend behavior. Per-port control can isolate a fault or disable one peripheral, while ganged control can reduce coordination complexity when all ports share a common operating state. The exact current thresholds, control timing, and fault response are [DATA_NEEDED: detailed electrical specifications], so verify them in the Texas Instruments datasheet before setting protection thresholds.
コンプライアンス情報
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Confirm current declarations with Texas Instruments and the authorized distributor.
