TUSB8040PFP - USB 3.0 4-Port Hub Controller | Texas Instruments
N.º da peça: TUSB8040PFP ✓ AtivoTUSB8040PFP Visão geral
A USB hub controller is an interface integrated circuit that coordinates traffic between a host and attached USB devices. It belongs to the hierarchy of USB interface controllers, interface integrated circuits, and general-purpose semiconductors. Rather than acting as a data endpoint, the controller implements hub functions such as port enumeration, connection management, and routing traffic between the upstream port and downstream ports. These functions allow several peripherals to share one host-side USB connection.
The principal feature of the TUSB8040 is its four-port hub architecture. Each downstream connection can participate in the USB topology managed by the upstream port, while SuperSpeed operation supports devices and links requiring the higher bandwidth of USB 3.0. High-Speed and Full-Speed support also allows compatible USB 2.0 and USB 1.1 devices to remain connected. The manufacturer identifies the TUSB8040PFP as a USB 3.0-compliant four-port hub controller.
The TUSB8040PFP uses an 80-pin HTQFP package identified by the PFP ordering code. Its exposed thermal-pad construction provides a practical path for heat transfer from the controller on a PCB designed for adequate copper area. The exact electrical limits, internal USB transceiver details, auxiliary supply requirements, and pin-level signal assignments should be taken from the Texas Instruments TUSB8040 data sheet rather than inferred from the distributor summaries.
Typical uses include industrial USB data acquisition, USB-to-Ethernet adapters, peripheral docking stations, test equipment, and embedded systems that expose multiple USB connections through one host port. The controller is also appropriate for systems requiring backward compatibility with lower-speed USB devices. Board-level implementation must preserve the USB routing and power-delivery requirements associated with four SuperSpeed downstream channels.
When laying out a TUSB8040PFP design, give priority to the upstream and downstream SuperSpeed differential pairs, maintain the routing geometry specified in the data sheet, and place the prescribed input, output, and bypass capacitors close to their associated pins. Thermal performance depends on the exposed pad being connected to a suitable copper plane and the assembled PCB reaching its intended temperature range.
This product record combines the verified manufacturer and distributor identity, package, interface type, port count, USB version, and commercial temperature information with practical application, sourcing, and design guidance. It also distinguishes a directly purchasable 80-pin PFP configuration from related TI hub controllers that use different package formats and therefore are not treated as drop-in replacements.
Alternativas drop-in para TUSB8040PFP — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Nenhuma alternativa drop-in disponível para este produto.
Solicitar alternativasTUSB8040PFP Especificações
| Product Type | SuperSpeed USB 3.0 four-port hub controller |
| USB Version | USB 3.0 |
| Downstream Port Count | 4 ports |
| Upstream Port Count | 1 port |
| Supported USB Speeds | SuperSpeed, High-Speed, and Full-Speed |
| Faixa de temperatura de operação | 0 °C to 70 °C |
| Encapsulamento | 80-pin HTQFP (PFP) |
| Package Dimensions | 12 x 12 mm |
| Tipo de montagem | Surface mount |
| Status RoHS | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
Guia de Configuração de Pinos do TUSB8040PFP 12 x 12 mm
Configuração de pinos para TUSB8040PFP (pacote 12 x 12 mm). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para TUSB8040PFP.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TUSB8040PFP é adequado para 6 aplicaçãos: Industrial USB Data Acquisition, USB-to-Ethernet Adapter, Peripheral Docking Station, Embedded Test and Measurement, Secure USB Gateway, Industrial Printing and Labeling.
Industrial USB Data Acquisition
The TUSB8040PFP fits a multi-channel data-acquisition enclosure that exposes one host connection while giving operators access to four peripheral ports. Its USB 3.0 four-port hub architecture provides a managed topology, and compatibility with High-Speed and Full-Speed devices allows legacy instruments to remain attached alongside SuperSpeed peripherals. The 0 °C to 70 °C PFP specification suits commercial lab and factory-floor equipment operating within that ambient range. Keep each SuperSpeed pair tightly routed and follow the data sheet’s power and thermal-land requirements.
Recomendado
USB-to-Ethernet Adapter
A USB-to-Ethernet adapter can place the TUSB8040PFP between a host interface and an internal Ethernet USB controller, providing four external USB-A connections without dedicating four host-controller ports. SuperSpeed operation supports high-bandwidth peripherals, while High-Speed and Full-Speed compatibility broadens device support. The 80-pin HTQFP package provides ample board-routing and exposed-pad options, although every USB differential pair must follow the manufacturer’s signal-integrity and reference-plane guidance.
Recomendado
Peripheral Docking Station
The TUSB8040PFP is suitable for a docking station that connects storage, keyboards, service tools, and other peripherals through four downstream USB ports. Its SuperSpeed USB 3.0 capability suits data-transfer devices, while support for lower USB speeds improves compatibility with simple peripherals. The four-port managed topology reduces host-controller and connector demands. Designers should budget downstream-port power separately, implement the required protection strategy, and preserve the recommended copper and via geometry under the exposed thermal pad.
Recomendado
Embedded Test and Measurement
In an embedded test platform, the TUSB8040PFP can provide one upstream link and four downstream connections for programmable instruments, mass-storage devices, and service interfaces. SuperSpeed operation can improve throughput for storage-oriented measurements, and High-Speed or Full-Speed operation accommodates older test equipment. The commercial 0 °C to 70 °C rating is appropriate for controlled indoor environments. Use short, impedance-controlled USB routes, place bypass capacitance at the device pins, and validate power-switching behavior across all supported USB states.
Recomendado
Secure USB Gateway
A USB gateway can use the TUSB8040PFP to provide controlled external connectivity while routing data through a host processor. The four downstream ports permit separate device classes, including storage and control peripherals, and USB 3.0 support accommodates data-intensive devices. Because the controller manages device attachment and traffic routing, the host software can enforce policy at the peripheral boundary. Electrical design must account for port power, ESD exposure, ground continuity, and data-pair routing defined by the Texas Instruments hardware guidelines.
Recomendado
Industrial Printing and Labeling
A printing or labeling system can use the TUSB8040PFP to combine a printer with scanners, card readers, and configuration devices on one USB connection. SuperSpeed support is useful for large images and high-volume transfers, while lower-speed compatibility accommodates common labeler accessories. The PFP package and exposed thermal pad suit a permanent PCB installation, provided copper is retained around the device for heat spreading. Verify downstream power budgets so a high-power printer does not destabilize other attached peripherals.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TUSB8040PFP — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto |
|---|---|
| Brand | Texas Instruments |
| Package | 80-pin HTQFP (PFP) |
| USB Version | USB 3.0 |
| Downstream Ports | 4 ports |
| Upstream Ports | 1 port |
| Operating Temperature | 0 °C to 70 °C |
| Package Dimensions | 12 x 12 mm |
| Supported USB Speeds | SuperSpeed, High-Speed, and Full-Speed |
Principais diferenciais
- Four-port SuperSpeed hub integration (vs TUSB8041RGCT)
- Exposed-pad HTQFP construction (vs TUSB8040ARKMR)
- Commercial-temperature PFP ordering option (vs TUSB8040A1RKMR)
Notas de projeto
Route the upstream and four downstream SuperSpeed differential pairs as controlled-impedance, tightly coupled traces on a continuous reference plane. Avoid plane splits beneath the pairs, minimize stubs, and follow the spacing and via guidance in the Texas Instruments TUSB8040 data sheet. Treat High-Speed and Full-Speed routing with the same care because the hub supports mixed-speed devices. Compliance testing should include the intended host, cable, enclosure, and attached peripheral configuration.
Implement the regulator and decoupling network exactly as specified in the manufacturer data sheet. Place each required bypass capacitor close to its power pin and maintain a low-impedance connection between the exposed thermal pad and the ground plane. Do not use the exposed pad as a substitute for individual ground-pin connections. Validate the complete downstream power budget because the controller manages four ports even when the attached devices use different USB power classes.
Use the PFP land pattern and thermal-via arrangement from the Texas Instruments package drawing. The exposed pad should have a generous, uninterrupted connection to a ground plane to spread controller heat and maintain stable operation across the 0 °C to 70 °C range. Avoid cutting the plane directly beneath the exposed pad, and evaluate the finished assembly under worst-case enclosure temperature and sustained USB traffic before freezing the PCB stack-up.
Do not assume that related TUSB8040 ordering codes are mechanically interchangeable. The PFP suffix identifies an 80-pin HTQFP configuration, while other suffixes use different packages, pin counts, or thermal arrangements. Confirm the exact pin-description table, exposed-pad connection, supply rails, crystal or clock requirements, and USB impedance guidelines against the selected part’s data sheet. Treat related controllers such as TUSB8041 and TUSB8044 as redesign candidates until pin and electrical equivalence is demonstrated.
Informações de conformidade
The verified manufacturer and distributor summaries do not provide explicit compliance declarations for this exact ordering option. Compliance should be confirmed using the Texas Instruments product documentation and current quality or material declarations.
