TUSB2043VF - 4-Port USB Hub with EEPROM | Texas Instruments
MPN: TUSB2043VF ✗ Son Kullanım ZamanıTUSB2043VF Genel Bakış
The TUSB2043VF uses a 48 MHz oscillator or clock source as its input clock, as stated in the verified manufacturer-related listing. Because this legacy hub controller depends on a relatively high-frequency clock, PCB layout should preserve short clock paths, provide clean return paths, and decouple supply pins close to the device. The 32-LQFP package offers enough perimeter pins for USB data, power, clock, configuration, and optional EEPROM connections, although a complete verified pin map is not included in the supplied data.
A major engineering consideration is USB signal integrity. Each enabled USB data path must be routed as a controlled-impedance differential pair on a multilayer PCB, with minimal stubs and carefully planned layer transitions. Power-distribution inductance can cause transient voltage excursions when a downstream device is attached or removed, so bulk and local decoupling should be evaluated together. The optional serial EEPROM interface adds an additional bus that must be routed with suitable signal-integrity practices.
Typical uses include legacy USB hubs, USB expansion equipment, computer peripherals, industrial data-acquisition systems, and embedded host or peripheral designs that require four downstream ports. Engineers should confirm host compatibility, downstream current budget, USB speed, enumerator behavior, electrical characteristics, and mechanical footprint against the manufacturer datasheet before using this obsolete device in a new production design.
The principal design tradeoff is lifecycle risk. A distributor result explicitly describes TUSB2043VF as obsolete, while another distributor lists it for purchase or RFQ. For new designs, compare current-generation USB hub controllers unless an existing platform specifically requires the TUSB2043VF footprint and behavior.
This page consolidates the verified product description, distributor availability references, package information, lifecycle indication, and explicit data gaps. It also separates known facts from missing parameters so engineers can assess whether the legacy controller remains appropriate without mistaking unverified specifications for manufacturer data.
Drop-in alternatifler için TUSB2043VF — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu ürüne yer değiştirme seçenekleri mevcut değil.
Alternatifleri Talep EdinTUSB2043VF Özellikler
| Product Type | 4-port USB hub controller with optional serial EEPROM interface |
| Number of USB Ports | 4 ports |
| Downstream Port Count | 4 ports |
| Serial EEPROM Interface | Optional |
| Input Clock | 48 MHz oscillator or clock source |
| Input Clock Frequency | 48 MHz |
| Paket | 32-LQFP |
| Package Pin Count | 32 pins |
| RoHS Durumu | RoHS3 |
| Yaşam Döngüsü Durumu | Obsolete |
| Manufacturer | Texas Instruments |
TUSB2043VF 32 pins Pin Yapısı Kılavuzu
TUSB2043VF (32 pins paket) için pin yapısı. Pin numaralandırma, işlevleri ve bağlantı şemaları üretici veri kitapçığında tanımlanmıştır. Doğru ayak ve soldurma kılavuzları için onu referans alın.
Ayrıntılı pin çıkış verisi mevcut değil: TUSB2043VF.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
TUSB2043VF için uygundur 6 uygulamas: Legacy USB Expansion Hub, Computer Peripheral Hub, Industrial Data Acquisition System, Legacy Test and Measurement Front Panel, USB-to-Equipment Interface Panel, Service and Repair Platform.
Legacy USB Expansion Hub
The TUSB2043VF is suitable for maintaining a legacy four-port USB hub because the verified device description identifies it specifically as a four-port Universal Serial Bus hub controller. It can serve as the central interface between an upstream USB connection and multiple downstream peripherals where an existing platform depends on its established 32-LQFP layout. The 48 MHz oscillator or clock source should be treated as a critical timing element, and the PCB should provide controlled-impedance USB routing, local supply decoupling, and short clock traces. Because the controller is identified as obsolete, it is better suited to repair, migration, or continuation of an approved platform than to an unrestricted new product launch.
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Computer Peripheral Hub
The TUSB2043VF can support a legacy external peripheral hub when four downstream USB connections and optional serial EEPROM storage are required. The optional EEPROM interface may be useful when a system needs device-specific configuration data, although the supplied information does not define its electrical protocol. Designers should reserve routing and test access for the EEPROM interface, keep optional signals cleanly separated from sensitive USB pairs, and plan connector protection appropriate to the application. The controller should not be introduced into a new peripheral platform without checking operating voltage, USB speed, downstream current, and lifecycle continuity.
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Industrial Data Acquisition System
A four-port USB hub function can be useful in industrial data-acquisition equipment that connects several USB instruments, sensors, or service interfaces to one host controller. The TUSB2043VF's verified four-port capability provides the functional basis for this application, while the 48 MHz clock requirement calls for a stable reference and a layout resistant to clock noise. Industrial equipment should also account for grounding, ESD protection, cable faults, and power-supply transients beyond the limits defined in the manufacturer datasheet. Because no verified temperature range or lifecycle suitability was supplied, an industrial deployment needs environmental qualification and a current supply assessment.
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Legacy Test and Measurement Front Panel
The TUSB2043VF can be evaluated for legacy test and measurement equipment that consolidates several USB-controlled instruments behind one USB hub connection. Its verified four-port hub function allows a single upstream interface to organize multiple downstream devices, while the optional serial EEPROM may support board-specific identification or configuration. Practical implementation still requires verified USB speed, current budget, and host-enumeration behavior. Test engineers should validate hot-plug behavior, susceptibility to ground offsets between instruments, and the stability of the 48 MHz reference before production release.
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USB-to-Equipment Interface Panel
The TUSB2043VF can form the USB-facing section of an equipment interface panel that needs several peripheral connections and optional nonvolatile configuration storage. The four-port hub architecture helps consolidate external peripherals, and the optional serial EEPROM interface provides a route for implementation-specific data. Layout should preserve short differential-pair connections, provide adequate copper around power pins, and avoid placing noisy switching nodes close to the 48 MHz clock network. Before using this obsolete controller in modern equipment, confirm that no newer USB hub IC offers better supply availability, power efficiency, compliance coverage, or supported production longevity.
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Service and Repair Platform
The TUSB2043VF is most defensible in a service or repair platform that must reproduce the behavior of an existing four-port USB hub board. Its verified 32-LQFP package and 48 MHz clock architecture support targeted board-level replication or fault isolation when an exact replacement is unavailable. The obsolete lifecycle designation makes component continuity a central concern, so engineers should require traceability and confirm the device markings before installation. Repair boards should also follow the original high-speed routing and decoupling layout as closely as practical, with particular attention to return paths, USB impedance, and clock-source placement.
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Önerilen Ürünler Özeti
Mühendislik referans verileri: TUSB2043VF — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | TUSB2036VF |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
Ana Farklılayıcılar
- Verified four-port USB hub configuration (karşılaştırma:TUSB2036VF)
- Optional serial EEPROM interface (karşılaştırma:TUSB2036VF)
- Explicit 48 MHz clock architecture (karşılaştırma:TUSB2036VF)
Tasarım Notları
Route the USB data connections as controlled-impedance differential pairs and minimize stub lengths, vias, and branch points. Keep the 48 MHz clock route short and isolated from USB data and switching-power nodes. Provide a continuous return path beneath each high-speed trace and avoid changing reference planes without properly stitched decoupling. The supplied data does not provide the supported USB speed or recommended trace geometry, so final impedance and spacing values must come from the manufacturer datasheet and the actual board stack-up.
Place input and local output decoupling capacitors immediately adjacent to the associated power pins of the 32-LQFP device, with short and low-inductance connections to the ground or return plane. Add bulk capacitance near the hub's power-distribution branch and provide adequate copper area for current flow. Do not assume a capacitor quantity or value without checking the manufacturer power-distribution requirements and the maximum downstream current, which is unavailable in the supplied data.
Do not treat a controller from the same product category as a drop-in replacement merely because it also appears in the USB hub family. A valid replacement for the obsolete TUSB2043VF must match the 32-LQFP footprint, pin assignments, 48 MHz clock expectations, USB electrical behavior, power budget, and optional EEPROM arrangement. Obtain the original pinout and cross-reference data, verify the exact package suffix, and request distributor confirmation before substituting a part in an assembled legacy platform.
Uyumluluk Bilgisi
A verified distributor listing states RoHS3. No verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals information was supplied.
