TUSB2140BN USB 1.1 4-Port Hub Controller | Texas Instruments
MPN： TUSB2140BN ✗ 停產TUSB2140BN 概覽
直接替換替代品，適用於 TUSB2140BN — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TUSB2140BN （相同外形與佔位） — 差異在於 Temperature Grade.
TUSB2140BN 規格
| Device Type | USB 1.1 four-port hub controller |
| USB Version | USB 1.1 |
| Number of USB Ports | 4 ports |
| Transceiver Configuration | 1/1 transceiver |
| 供應電壓 | 3 V to 5.25 V |
| 封裝 | 40-DIP (0.600", 15.24 mm) |
| 腳位數 | 40 terminals |
| 安裝類型 | Through-hole |
| Temperature Grade | Commercial |
| Device Category | Bus controller, universal serial bus |
| Manufacturer | Texas Instruments |
| I2C Interface | Microcontroller interface indicated by supplier documentation |
TUSB2140BN 40-dip (0.600", 15.24 mm) 腳位配置指南
TUSB2140BN（40-dip (0.600", 15.24 mm) 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TUSB2140BN.
請參閱 資料表 以查看完整腳位配置。
典型應用
TUSB2140BN 適用於 6 應用s: Legacy USB Peripheral Hub, Industrial USB Data Acquisition Hub, USB-to-Serial Adapter Hub, Test and Measurement Access Hub, Embedded Linux USB Hub Expansion, Printer and Peripheral Sharing Hub.
Legacy USB Peripheral Hub
The TUSB2140BN fits a legacy USB 1.1 hub design built around a 40-DIP through-hole controller. Its confirmed four-port hub capability provides the basis for connecting multiple downstream peripherals through a shared upstream USB interface, while the 3 V to 5.25 V supply range supports conventional USB controller rails. The through-hole package also simplifies prototype assembly and repair. Before routing the board, engineers should obtain the official TUSB2140B pin table and verify data-line, clock, I2C, power, and ground connections because those details are not present in the supplied listings.
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Industrial USB Data Acquisition Hub
The TUSB2140BN can support a legacy industrial data-acquisition hub that combines several low-speed USB instruments behind one controller. Four hub ports provide a practical way to connect control, measurement, and storage peripherals, while commercial temperature grading makes the device a candidate for controlled indoor equipment. The 40-DIP package is advantageous for industrial motherboard layouts that use through-hole assembly. Designers must still confirm operating-temperature limits, ESD protection, upstream and downstream bus routing, and power-distribution requirements from the manufacturer documentation.
推薦
USB-to-Serial Adapter Hub
The TUSB2140BN is applicable to a multi-port USB-to-serial adapter hub built for legacy computers and embedded controllers. Its four USB hub ports can organize several serial peripherals, and the through-hole 40-DIP package allows inexpensive through-hole adapter construction. The I2C microcontroller interface referenced in supplier documentation may assist configuration or hub-management implementation, although exact register and address details remain to be verified. Production designs should reserve local decoupling, implement downstream-port power control, and validate USB signal integrity according to the official device guidance.
推薦
Test and Measurement Access Hub
The TUSB2140BN can form the central USB connection point in a legacy test-and-measurement access hub. Its four ports allow compatible USB 1.1 instruments, programmers, or service interfaces to share one upstream connection, and the 40-DIP package simplifies insertion into laboratory or service boards. The confirmed 3 V to 5.25 V operating range allows compatibility with conventional controller supply rails, but does not by itself specify internal port-current limits. Each downstream path therefore needs power switching, protection, and grounding validated against the official datasheet and USB design guidance.
推薦
Embedded Linux USB Hub Expansion
The TUSB2140BN is suitable for a legacy embedded Linux system that needs a physical four-port USB expansion interface. The controller's USB 1.1 classification targets established low-speed and full-speed peripherals rather than current high-speed devices, making it most appropriate where existing host software already supports USB 1.1 devices. The DIP package enables simple carrier-board implementation. Linux enumeration, port-power timing, I2C configuration, and driver support should be validated in the target operating system because the supplied web evidence does not establish those software details.
推薦
Printer and Peripheral Sharing Hub
The TUSB2140BN can organize legacy printers, scanners, and service peripherals in a shared USB 1.1 hub. Four downstream ports provide a clear expansion path for compact desktop equipment, and the through-hole package supports economical adapter-board assembly. A reliable implementation must account for hot-plug behavior, downstream-port power management, shared-current limits, shield grounding, and USB data routing. Since the verified listings do not disclose those electrical details or exact pin assignments, the manufacturer datasheet and USB reference designs should be used as the controlling design documents.
推薦
推薦產品摘要
工程參考資料，適用於 TUSB2140BN — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TUSB2140N |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
主要差異化特點
- Confirmed four-port USB 1.1 hub function (對比TUSB2140N)
- Documented 40-DIP package format (對比TUSB2140N)
- Verified distributor availability and pricing (對比TUSB2140N)
設計說明
Use the official 40-DIP package drawing to establish pin 1 orientation and preserve the through-hole footprint. Because the supplied evidence does not include the complete pin table, do not derive USB data, power, clock, or I2C connections from generic USB-controller symbols. Route differential USB pairs as controlled-impedance nets, keep connector and transceiver paths short, and verify every connection against the manufacturer pin description before releasing fabrication files.
Implement the downstream hub power path separately from the controller supply. The verified operating supply range is 3 V to 5.25 V, but no downstream current limit or switching transistor configuration is supplied. Determine each port's worst-case load from the official datasheet, add appropriate protection, and account for simultaneous port-current demand so the power supply, connectors, and protection components remain within safe limits.
Separate the upstream USB connection from downstream-port routing and avoid long stubs between the controller and connectors. Maintain a continuous ground reference under USB data routes, place required bypass capacitance close to the relevant supply pins, and follow the manufacturer's recommended layer stack and impedance guidance. Since exact clock and I2C connections are not available in the verified data, their placement and return paths should be based on the official application schematic.
Do not treat the TUSB2140N comparison result as proof of interchangeability without checking the full package and pinout. Also do not infer that USB 1.1 operation guarantees modern high-speed peripheral performance. Confirm the required USB speed, host compatibility, port-power behavior, lifecycle status, and operating-temperature range against current manufacturer documentation before starting a new production design.
合規資訊
The supplied verified records identify commercial temperature grade but do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. AEC-Q100 is marked not applicable because this is a USB interface IC rather than an automotive-qualified device. No compliance claims were inferred.
