TUSB2140BN USB 1.1 4-Port Hub Controller | Texas Instruments
料号： TUSB2140BN ✗ 停产TUSB2140BN 概述
直接替换替代料： TUSB2140BN ——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： TUSB2140BN （相同外形与封装尺寸） ——差异在于 Temperature Grade.
TUSB2140BN 规格参数
| 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 |
| 电源电压 | 3 V to 5.25 V |
| 封装 | 40-DIP (0.600", 15.24 mm) |
| 引脚数量 | 40 terminals |
| 安装类型 | 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) 引脚配置指南
TUSB2140BN（40-dip (0.600", 15.24 mm) 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： TUSB2140BN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TUSB2140BN 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： TUSB2140BN ——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 | TUSB2140N |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
关键差异点
- Confirmed four-port USB 1.1 hub function （对比 TUSB2140N)
- Documented 40-DIP package format （对比 TUSB2140N)
- Verified distributor availability and pricing （对比 TUSB2140N)
设计说明
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.
合规信息
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.
