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TUSB2040N - 4-Port USB 1.0 Hub Controller | Texas Instruments
TUSB2040N

TUSB2040N - 4-Port USB 1.0 Hub Controller | Texas Instruments

Texas Instruments TUSB2040N is a four-port USB 1.0-compatible hub controller with integrated USB transceivers, per-port power switching, and overcurrent reporting. The device supports four downstream ports and two power-source arrangements: self-powered mode and bus-powered mode. It is packaged as a 28-pin PDIP according to the retrieved distributor records. The verified source identifies the TUSB2040 family as a universal serial bus hub controller and does not provide additional electrical timing, current, or temperature values. 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.

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TUSB2043VF - 4-Port USB Hub with EEPROM | Texas Instruments
TUSB2043VF

TUSB2043VF - 4-Port USB Hub with EEPROM | Texas Instruments

Texas Instruments TUSB2043VF is a four-port USB hub controller with an optional serial EEPROM interface, a 48 MHz oscillator or clock source, and a 32-pin LQFP package. It belongs to the USB interface-controller hierarchy: USB hub controller, USB interface IC, interface integrated circuit, and semiconductor. Its verified device description identifies support for four downstream USB ports while allowing an optional serial EEPROM connection for configuration or device-specific control data. 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.

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TUSB2043VFR - 4-Port USB Hub with EEPROM | Texas Instruments (Tape & Reel)
TUSB2043VFR

TUSB2043VFR - 4-Port USB Hub with EEPROM | Texas Instruments (Tape & Reel)

Texas Instruments TUSB2043VFR is a four-port USB hub controller with an optional serial EEPROM interface, a 48 MHz oscillator or clock source, and a 32-pin LQFP package. It belongs to the USB interface-controller hierarchy: USB hub controller, USB interface IC, interface integrated circuit, and semiconductor. Its verified device description identifies support for four downstream USB ports while allowing an optional serial EEPROM connection for configuration or device-specific control data. The TUSB2043VFR 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 TUSB2043VFR 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 TUSB2043VFR 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.

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TUSB2046BVF - 4-Port USB 2.0 Full-Speed Hub | TI (Tape & Reel)
TUSB2046BVF

TUSB2046BVF - 4-Port USB 2.0 Full-Speed Hub | TI (Tape & Reel)

The Texas Instruments TUSB2046BVF is a 4-port USB 2.0 full-speed (12 Mbps) hub controller with one upstream port and four downstream ports, implemented as a pure state-machine (no CPU core) in a 32-pin LQFP (VF, 7x7 mm) package. It operates from a single 3.0 V to 3.6 V supply, drawing approximately 40 mA, over a 0 C to 70 C commercial temperature range. A USB hub controller is a dedicated interface IC that expands a single USB upstream connection into multiple downstream ports, handling enumeration, transaction translation at the protocol level, and per-port power management. Within the system hierarchy it sits in the connectivity layer: interface IC > USB controller > hub controller, alongside host controllers and device controllers in a complete USB subsystem. Key features include full compliance with the USB specification as a full-speed hub (TI design TID #30220231), integrated USB transceivers that eliminate external PHY components, and an optional serial EEPROM interface for storing customized VID/PID and configuration data. Support for Win95/DOS-style operation and a pure hardware state-machine architecture reduce firmware complexity to zero - the hub enumerates automatically on plug-in. The TUSB2046B is fabricated on a low-power 3.3 V ASIC CMOS process. Because there is no embedded microcontroller, no firmware development, flash programming, or in-circuit emulator is required, which shortens qualification cycles and removes a whole class of field-update failure modes. The device supports individual downstream port power switching and overcurrent status inputs for compliant bus-powered and self-powered hub designs. Typical applications include standalone USB hubs, monitor and keyboard-display hubs, industrial and medical equipment USB expansion, and adding USB ports to embedded systems built around host processors without native hub capability. For design, provide 0.1 uF decoupling at each supply pin, strap configuration pins (or fit the optional EEPROM) for power-mode selection, and size port power switches per downstream port load. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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TUSB2046BVFR - 4-Port USB 2.0 Full-Speed Hub | TI
TUSB2046BVFR

TUSB2046BVFR - 4-Port USB 2.0 Full-Speed Hub | TI

The Texas Instruments TUSB2046BVFR is a 4-port USB 2.0 full-speed (12 Mbps) hub controller with one upstream port and four downstream ports, implemented as a pure state-machine (no CPU core) in a 32-pin LQFP (VF, 7x7 mm) package. It operates from a single 3.0 V to 3.6 V supply, drawing approximately 40 mA, over a 0 C to 70 C commercial temperature range. A USB hub controller is a dedicated interface IC that expands a single USB upstream connection into multiple downstream ports, handling enumeration, transaction translation at the protocol level, and per-port power management. Within the system hierarchy it sits in the connectivity layer: interface IC > USB controller > hub controller, alongside host controllers and device controllers in a complete USB subsystem. Key features include full compliance with the USB specification as a full-speed hub (TI design TID #30220231), integrated USB transceivers that eliminate external PHY components, and an optional serial EEPROM interface for storing customized VID/PID and configuration data. Support for Win95/DOS-style operation and a pure hardware state-machine architecture reduce firmware complexity to zero - the hub enumerates automatically on plug-in. The TUSB2046B is fabricated on a low-power 3.3 V ASIC CMOS process. Because there is no embedded microcontroller, no firmware development, flash programming, or in-circuit emulator is required, which shortens qualification cycles and removes a whole class of field-update failure modes. The device supports individual downstream port power switching and overcurrent status inputs for compliant bus-powered and self-powered hub designs. Typical applications include standalone USB hubs, monitor and keyboard-display hubs, industrial and medical equipment USB expansion, and adding USB ports to embedded systems built around host processors without native hub capability. For design, provide 0.1 uF decoupling at each supply pin, strap configuration pins (or fit the optional EEPROM) for power-mode selection, and size port power switches per downstream port load. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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TUSB2046BVFRG4 - 4-Port USB 2.0 Full-Speed Hub | Texas Instruments
TUSB2046BVFRG4

TUSB2046BVFRG4 - 4-Port USB 2.0 Full-Speed Hub | Texas Instruments

The Texas Instruments TUSB2046BVFRG4 is a 4-port USB 2.0 full-speed hub controller operating at 12 Mbps from a 3.3 V supply, housed in a 32-pin LQFP (7x7 mm) package with an optional serial EEPROM interface and a 0C to +70C commercial operating range. A USB hub controller is an interface IC that expands a single upstream USB port into multiple downstream ports, handling enumeration, transaction translation at the protocol level, and port power management. It sits within the USB device hierarchy between the host controller and downstream peripherals, forming a sub-family of the broader USB interface and connectivity IC class within semiconductor interface products. Key features include one upstream port and four downstream ports compliant with the USB 2.0 specification at full speed (12 Mbps), support for both low-speed (1.5 Mbps) and full-speed downstream devices, an optional serial EEPROM interface for storing vendor ID / product ID configuration data, and overcurrent detection inputs with power-switch control outputs for per-port or ganged power switching. Implementation with a digital state machine instead of an embedded microcontroller eliminates firmware development and reduces BOM complexity. Technical depth: because the TUSB2046B is a pure hardware state-machine design, enumeration latency is deterministic and there is no firmware to qualify, update, or corrupt. The 3.3 V CMOS core with integrated 3.3 V regulator support keeps external components minimal, typically requiring only a 6 MHz or 48 MHz clock source, bypass capacitors, and the external power switches for downstream VBUS. Typical applications include PC monitor hubs, docking stations, industrial panel USB expansion, printer and multifunction peripheral front panels, and embedded systems requiring additional USB ports from a single host connection. The 12 Mbps full-speed rating suits HID devices, flash drives, and instrumentation rather than high-bandwidth video or mass-storage arrays. Design consideration: budget downstream VBUS power carefully - each downstream port may supply up to 500 mA at 5 V per the USB specification, so external power MOSFET switches and overcurrent sensing resistors must be sized for the aggregate load, and the OVERCURRENT inputs must be wired to the correct power-switch pins. This page synthesizes distributor pricing context, drop-in alternatives, lifecycle status, and practical design notes not found in the manufacturer datasheet alone.

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TUSB2070PT - 7-Port USB 1.0 Hub Controller | Texas Instruments
TUSB2070PT

TUSB2070PT - 7-Port USB 1.0 Hub Controller | Texas Instruments

The Texas Instruments TUSB2070PT is a CMOS 7-port USB hub controller that conforms to USB Specification Version 1.0, supplied in a 48-pin LQFP (PT) surface-mount package with a 0 °C to +70 °C commercial operating temperature range. According to the manufacturer datasheet, the device provides up to seven downstream ports from a single upstream connection, consolidating multiple legacy USB peripherals behind one host port. A USB hub controller is a type of USB interface controller: it sits between a host and one or more downstream devices, managing enumeration, power distribution, and data traffic across the bus. In the product-type hierarchy, a USB hub controller belongs to interface controllers, which are a subset of integrated circuits used for signal and protocol bridging. In an end system, the hub controller provides the physical fan-out layer between a single USB port and several peripherals, sitting below the host controller and above the physical USB transceiver layer. Key characteristics of the TUSB2070PT include support for up to seven downstream ports, full-speed operation under USB Specification 1.0 rules, a monolithic CMOS implementation, and a single upstream port connection for the host link. The 48-pin LQFP (PT) body gives generous pin count for port-level control and status signalling, while the industrial-temperature 0 °C to +70 °C range suits commercial and light-industrial equipment. Detailed electrical ratings such as supply voltage, I/O current, and internal oscillator tolerance are not stated in the retrieved data and must be confirmed against the manufacturer datasheet. Architecturally, the device implements the split-transaction, single-master USB 1.0 protocol stack internally, including host-controller interface signalling toward the upstream port and per-port transceiver interfacing toward downstream ports. It is a legacy architecture: modern designs normally use USB 2.0 high-speed hubs with integrated PHY and charge-pump regulators, so the TUSB2070 remains most relevant where a legacy USB 1.0 host must be expanded without changing the upstream device class. Typical uses include legacy personal-computer and embedded host systems needing additional full-speed USB ports, industrial data-acquisition panels, point-of-sale and print peripherals, and test benches that replicate USB 1.0 topologies. Because it is an established, widely supported part with a long service history, it is frequently found in repair and legacy-platform maintenance programs. Two design considerations matter most. First, the device is no longer the newest Texas Instruments 7-port hub: the manufacturer lists the TUSB2077A, also in a 48-LQFP package, as the replacement, so new designs should start there. Second, a 48-LQFP body demands careful decoupling and ground-plane continuity to keep USB signal integrity within the 1.0 specification budget. This page consolidates distributor availability signals, a drop-in replacement analysis for the 48-LQFP 7-port hub footprint, lifecycle guidance, and practical design notes that are not gathered together in a single manufacturer datasheet.

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TUSB2077APT - 7-Port USB 2.0 Hub Controller | Texas Instruments
TUSB2077APT

TUSB2077APT - 7-Port USB 2.0 Hub Controller | Texas Instruments

The Texas Instruments TUSB2077APT is a seven-port Universal Serial Bus hub controller operating as a full-speed USB 2.0 device at 12 Mbps. The controller is offered in a 48-pin LQFP package with a 7 mm by 7 mm body. It integrates USB hub logic with an optional serial EEPROM interface for product identification and configurable USB descriptors. A USB hub controller is an interface semiconductor that manages one upstream USB connection and multiple downstream ports. In the broader hierarchy, the TUSB2077APT belongs to the USB interface controller class, within interface integrated circuits and general-purpose semiconductor devices. Its seven-port architecture allows several USB peripherals to share one host controller while individual downstream connections can be enabled, disabled, or managed for power and enumeration requirements. The manufacturer identifies the TUSB2077APT as a seven-port full-speed USB 2.0 hub controller. It supports both bus-powered and self-powered operating modes, which allows the hub to be designed around the power budget of a host device or with a dedicated external supply. The optional serial EEPROM interface provides a path for storing descriptor information rather than relying only on the controller's default descriptor behavior. The EXTMEM control is connected to pin 47 and determines whether the optional EEPROM interface is enabled. According to the Texas Instruments TUSB2077A product page, driving EXTMEM high enables the optional EEPROM function and causes the vendor and product identifiers to use defaults, including enumeration as a General Purpose USB Hub. This makes EXTMEM an important PCB-level design and firmware-configuration decision. Typical uses include compact USB expansion products, computer peripherals, docking equipment, industrial control panels, test systems, and embedded systems that need several full-speed USB connections. A design must allocate upstream and downstream signal routing, verify power-source requirements, and configure the hub for either bus-powered or self-powered operation. The optional EEPROM path should be assessed early because its presence or absence affects descriptor customization and board population. Use the manufacturer pin-description table and package drawing when assigning all 48 pins and laying out the LQFP footprint. The downstream data paths require careful, impedance-conscious routing, while power and ground connections need enough copper area to support the selected operating mode. Designers should also confirm the configuration of EXTMEM at pin 47 and the intended behavior of the optional EEPROM interface. This product record combines the manufacturer's hub-function details, package and pin-count information, lifecycle information, sourcing context, and a conservative drop-in comparison. It also identifies practical design decisions that are easy to overlook: descriptor customization, EXTMEM configuration, power-mode selection, and validation of every candidate replacement before PCB substitution.

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TUSB211RWBR - 480 Mbps USB 2.0 Signal Conditioner | TI
TUSB211RWBR

TUSB211RWBR - 480 Mbps USB 2.0 Signal Conditioner | TI

Texas Instruments TUSB211RWBR is a USB 2.0 high-speed signal conditioner designed to compensate for intersymbol interference in USB transmission channels. The device supports USB high-speed operation at 480 Mbps and is offered in a 12-pin X2QFN package measuring 1.6 mm by 1.6 mm. Its compact footprint makes the TUSB211 suitable for USB ports, cable extensions, peripheral connections, and embedded systems where signal loss can impair data integrity. A USB high-speed signal conditioner is an interface device placed within a USB 2.0 data path to improve signal quality across lossy interconnects. USB high-speed signaling uses differential data lines with significant bandwidth requirements, making cable length, connector transitions, PCB routing, and impedance discontinuities important system-level considerations. The TUSB211 belongs to the broader hierarchy of signal-processing interface ICs, interface ICs, and semiconductor devices designed to preserve data integrity between hosts, hubs, and USB peripherals. The primary function of the TUSB211 is to restore a degraded differential signal by compensating for channel-induced loss and intersymbol interference. Its USB 2.0 high-speed capability permits operation at 480 Mbps, allowing a link to remain functional over channels that would otherwise suffer from reduced eye opening or communication errors. Because the signal-conditioning stage operates within the data path, placement and layout can determine how effectively it corrects the intended channel. The RWB ordering code identifies the compact 12-X2QFN configuration used by TUSB211RWBR. Its small surface-mount package supports high-density PCB layouts, although accurate placement requires careful attention to differential-pair geometry, ground-return paths, and decoupling. The manufacturer product information lists the device as a USB 2.0 480-Mbps high-speed signal conditioner and identifies TUSB211RWBR as a 12-pin RWB package variant. Typical uses include USB host-to-peripheral links, USB-to-wireless bridges, industrial USB connections, peripheral docking systems, and cable-extension designs. The device is especially relevant when a connector, cable, or long PCB route introduces measurable high-speed attenuation and the designer wants to recover usable eye margin without replacing the entire USB interface implementation. When laying out a design, treat the conditioner as part of the high-speed channel rather than as an isolated IC. Verify differential impedance, minimize impedance discontinuities, provide the required local bypassing, and place the device where the channel losses remain predictable. Confirm signal-eye and compliance behavior with the complete connector, cable, host, and peripheral combination because channel length and topology can change the amount of correction required. This product page combines the exact TUSB211RWBR ordering information with practical USB signal-integrity guidance, compatibility-focused alternatives, and a side-by-side view of the electrical and packaging constraints that determine whether a substitution can be implemented without a PCB redesign.

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TUSB212RWBR - USB 2.0 HS Signal Conditioner | Texas Instruments
TUSB212RWBR

TUSB212RWBR - USB 2.0 HS Signal Conditioner | Texas Instruments

Texas Instruments TUSB212RWBR is a USB 2.0 High-Speed signal conditioner with DC boost, packaged in a 12-X2QFN surface-mount package measuring 1.6 mm by 1.6 mm. It is designed to compensate for intersymbol interference caused by signal loss in a transmission channel. The device applies programmable AC boost and DC boost to restore degraded high-speed data signals while remaining agnostic to USB Low-Speed and Full-Speed traffic. A USB signal conditioner is a specialized interface IC that improves an already transmitted USB differential signal without changing the protocol implemented by the USB host, hub, or peripheral. Its position in the signal path is between the transmitter and a lossy channel. This makes the TUSB212RWBR part of the broader USB interface hierarchy: USB 2.0 interface IC, signal conditioning IC, redriver, and ultimately a semiconductor-based connectivity device. The principal feature of the TUSB212RWBR is programmable signal AC boost combined with DC boost. AC boost restores high-frequency signal amplitude lost through channel attenuation, while DC boost helps maintain the differential voltage required for reliable high-speed signaling. The manufacturer describes the implementation as patent pending and identifies USB On-The-Go compatibility as an additional design feature. Low-Speed and Full-Speed signal characteristics remain unaffected by the conditioning function. TUSB212RWBR is intended for USB 2.0 systems where trace losses, connector transitions, cable segments, or routing discontinuities reduce High-Speed eye margin. Conditioning is normally applied to the D+ and D+ differential pair as a complete pair rather than to either conductor independently. The correction must be tuned from measured eye diagrams because excessive boost can increase edge distortion, jitter, or emissions instead of improving receiver recovery. Typical deployments include USB hubs, cable assemblies, peripheral boards, host adapters, test equipment, and USB-to-storage or USB-to-network interfaces. In a hub, the conditioner can be placed near an upstream port so the signal entering a long cable is restored before attenuation becomes significant. In a peripheral, it can compensate for PCB routing from a connector to a USB controller. When applying the device, preserve the USB differential impedance recommended by the manufacturer and keep the D+ and D+ routes coupled and symmetric. Decoupling and boost configuration should follow the manufacturer reference layout. Confirm compliance through eye-height, jitter, rise-time, and emissions measurements because channel length, connector geometry, and host behavior determine the useful correction amount. This product page combines the manufacturer's USB 2.0 signal-conditioning description, exact TUSB212RWBR package information, extracted distributor pricing, and practical replacement analysis. It also distinguishes confirmed drop-in candidates from unsupported package or functional substitutions so engineers can make a PCB-level decision without relying on generic USB redriver recommendations.

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TUSB2136PM - 2-Port USB 2.0 Hub Controller | Texas Instruments
TUSB2136PM

TUSB2136PM - 2-Port USB 2.0 Hub Controller | Texas Instruments

Texas Instruments TUSB2136PM is a USB 2.0 two-port hub controller with an integrated general-purpose function controller, supplied in a 64-LQFP surface-mount package measuring 10 mm by 10 mm. It operates from a 3 V to 3.6 V supply and is specified for a 0 °C to 70 °C ambient operating range. The component is listed as active and is intended for USB interface and hub-controller designs. A USB hub controller is an interface integrated circuit that manages a USB host connection and coordinates attached USB devices. Within the product hierarchy, a USB 2.0 hub controller is an interface IC, a USB interface device, and a semiconductor. This TUSB2136 variant combines two-port hub control with a general-purpose function controller, allowing the hub function and device-side control logic to be consolidated within one package. The principal verified features are two USB 2.0 ports, a 3 V to 3.6 V operating-supply range, and integrated general-purpose function control. The controller is packaged in a 64-pin LQFP measuring 10 mm by 10 mm, providing a surface-mount implementation for compact USB equipment. The operating temperature range of 0 °C to 70 °C identifies it as a commercial-temperature option rather than an explicitly automotive-qualified or extended-temperature device. The TUSB2136PM combines a compound USB hub function with an embedded general-purpose 8052 MCU, as identified in the supplied datasheet result. This architecture is useful when downstream equipment needs local device handling, configuration logic, or peripheral control in addition to standard USB hub behavior. Its consolidated approach can reduce the number of discrete interface components required around a USB connection, although the complete implementation must be validated against the manufacturer datasheet and reference design. Typical uses include USB connection hubs, computer peripherals, docking equipment, and embedded USB interface products. Its two-port configuration is appropriate for systems that need to expose multiple USB connections through one upstream USB link. Integration of the general-purpose function controller is especially relevant to designs in which hub management must coexist with vendor-specific control behavior or device-specific handling. Designers should pay particular attention to USB signal routing, supply decoupling, and the exact pin assignments shown in the manufacturer documentation. Because the verified sources do not provide the complete pin table, crystal requirements, programming interface, USB transceiver details, or decoupling values, those items must be obtained from the official datasheet before schematic capture. No automotive qualification or regulatory status beyond the supplied active-status information should be inferred. This page combines the verified USB version, port count, supply range, package, temperature range, lifecycle status, and distributor availability information with practical integration guidance. It also distinguishes documented characteristics from unknown electrical details and avoids presenting unverified pinout or replacement claims as drop-in-compatible alternatives.

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TUSB2140BN USB 1.1 4-Port Hub Controller | Texas Instruments
TUSB2140BN

TUSB2140BN USB 1.1 4-Port Hub Controller | Texas Instruments

The Texas Instruments TUSB2140BN is a USB 1.1 interface controller for four-port USB hub applications, supplied in a 40-pin DIP package measuring 0.600 inches, or 15.24 mm, across. The device is identified by distributors as a USB interface bus controller with integrated transceiver characteristics, and it is associated with an I2C microcontroller interface in supplier documentation. The verified product information confirms a through-hole DIP format, commercial temperature grade, and 40 terminals. It also confirms availability through multiple distributors, including 6,048 pieces reported by Heisener and a unit price of $6.4513 as of 2026-10-30. The TUSB2140BN is therefore positioned as a legacy USB hub controller for systems requiring four downstream USB ports rather than a general-purpose USB interface transceiver. Its 40-DIP package favors prototype boards, legacy industrial equipment, and expansion systems where through-hole assembly is acceptable. The supplied listings do not provide a complete official electrical table, exact pin assignments, transfer-rate details beyond USB 1.1, or a current manufacturer lifecycle statement. Those parameters remain identified as data needed rather than being inferred from similar devices. A practical design review should therefore begin with the official TUSB2140B datasheet, especially for D+/D- routing, power-switching requirements, crystal or clock connections, I2C address programming, and termination requirements. In a USB hub design, the controller manages downstream-port enumeration and shared upstream-bus behavior, while external power-distribution and protection components determine how safely multiple peripherals can be connected.

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TUSB2140N - 4-Port USB 2.0 Hub Controller | Texas Instruments
TUSB2140N

TUSB2140N - 4-Port USB 2.0 Hub Controller | Texas Instruments

Texas Instruments TUSB2140N is a 4-port USB 2.0 hub controller with embedded function, a maximum clock frequency of 48 MHz, I2C bus compatibility, and a 40-pin through-hole DIP package. It is designed for industrial USB hub equipment requiring multiple downstream ports and centralized control. The verified sources identify TUSB2140N as the original 40-PDIP member of the TUSB2140 family and note that it was replaced by TUSB2046B. A USB hub controller is an interface IC that manages traffic between one upstream USB host connection and multiple downstream USB ports. Within the product hierarchy, it is a USB interface controller, bus controller, interface IC, and semiconductor. By organizing USB connectivity and exposing configuration functions through a compatible control bus, this type of device reduces the amount of discrete logic required in a multiport USB product. The TUSB2140N provides four downstream hub ports, operates up to 48 MHz, supports I2C compatibility, and is available in a 40-terminal rectangular DIP package. The verified distributor data classifies it as an industrial-temperature component with through-hole terminals. These characteristics make it relevant to legacy industrial USB hubs, embedded USB expansion equipment, and systems designed around the original TUSB2140 interface rather than newer hub controllers. Technically, the device combines USB host-interface management and an embedded function in one controller. Its 48 MHz maximum operating frequency supports the clocking requirements associated with this USB 2.0 hub-controller generation, while I2C compatibility offers a practical path to configuration and supervisory control. The 40-pin DIP format favors through-hole assembly and repairability, but it consumes considerably more board area than contemporary surface-mount hub controllers. Typical applications include industrial USB hubs, embedded test equipment, peripheral aggregation systems, legacy USB expansion cards, and OEM products that retain the TUSB2140 architecture. Because the part is an older through-hole design, engineers should also assess modern surface-mount alternatives or the indicated TUSB2046B successor when new PCB area, sourcing, or lifecycle constraints favor redesign. The primary design consideration is lifecycle and availability. Verified marketplace data states that TUSB2140N was replaced by TUSB2046B, while current stock and pricing are offered through brokers and distributors. For new production, confirm lifecycle status, exact electrical compatibility, and pin-level equivalence before substituting any successor; a USB hub change can affect enumeration, power management, and downstream-port behavior. This page consolidates verified distributor specifications, the replacement relationship, source links, and engineering selection guidance. It distinguishes documented TUSB2140N attributes from unavailable parameters, helping procurement and design engineers make a grounded legacy-support or migration decision.

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TUSB214RWBR - USB 2.0 HS Signal Conditioner | Texas Instruments
TUSB214RWBR

TUSB214RWBR - USB 2.0 HS Signal Conditioner | Texas Instruments

Texas Instruments TUSB214RWBR is a USB 2.0 high-speed signal conditioner with DC boost and an integrated BC1.2 Charging Downstream Port controller. It supports USB 2.0, OTG 2.0, and BC1.2 operation, with low-, full-, and high-speed signaling across a 3 V to 3.6 V supply range. The device is packaged in a compact 12-pin X2QFN package measuring 1.6 mm by 1.6 mm. A USB signal conditioner is an interface IC that compensates for attenuation, distortion, and timing degradation introduced by connectors, cables, PCB traces, and other interconnect elements. Positioned within the broader USB interface hierarchy, it sits between a USB host or device controller and a physical USB connection. Its DC boost function helps maintain usable signal amplitude through lossy channels, while its integrated charging-port controller simplifies compliance with BC1.2 downstream-port requirements. The TUSB214 supports LS, FS, and HS signaling and provides selectable signal gain for high-loss applications. Its D1P/M and D2P/M inputs are interchangeable, allowing the same device-oriented layout to work in host or device applications. The device also supports daisy-chain operation, which can simplify cascading through multiple lossy cable or connector sections when a single conditioner is not sufficient. The BC1.2 charging function is configurable through a pin strap or I2C. This provides a practical choice between hardware-configured designs and firmware-controlled implementations. The TUSB214 additionally features very low USB disconnect and shutdown power consumption, making it suitable for power-conscious USB equipment where inactive-state leakage can influence battery life or system thermal performance. Typical applications include USB 2.0 peripheral connections, host-to-cable interfaces, device-to-cable interfaces, and systems that require an integrated downstream charging-port controller. It is particularly useful when PCB routing, connector transitions, or cable loss could degrade high-speed USB data. The 1.6 mm by 1.6 mm X2QFN footprint supports compact designs, although its fine pitch requires careful layout, assembly, and inspection practices. The principal design consideration is placement. The conditioner should be positioned near the loss or connector transition it is intended to correct, while its data traces should remain short, properly terminated, and routed away from noisy power or high-current paths. Designers should also confirm the configured BC1.2 mode, enable state, and signal-gain setting against the final system behavior. This product page combines the TUSB214 family characteristics with package-specific ordering information, application guidance, drop-in alternatives, and a practical comparison framework. It is intended to support component selection and board-level implementation decisions rather than simply repeat the basic catalog description.

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TUSB2551PW - USB 2.0 Half Transceiver | Texas Instruments
TUSB2551PW

TUSB2551PW - USB 2.0 Half Transceiver | Texas Instruments

Texas Instruments TUSB2551PW is a single USB 2.0 half-rate transceiver supporting full-speed operation up to 12 Mbit/s and low-speed operation up to 1.5 Mbit/s in a 14-pin TSSOP package. The device operates from a 1.65 V to 3.6 V supply, making it suitable for low-voltage USB connectivity and embedded systems. Its integrated transceiver architecture supports bidirectional USB data signaling while reducing the external circuitry required for a host, device, or interface application. A USB transceiver is an interface IC that converts digital controller signals into USB-compatible physical-layer signals and receives the corresponding bus signals from a USB connection. The TUSB2551 belongs to the USB interface transceiver hierarchy, alongside USB interface controllers, USB hubs, and USB power-management devices. Unlike a USB controller, it does not implement protocol or enumerate bus devices; it provides the physical-layer path between a USB-capable controller and a connector or cable. The TUSB2551 supports both full-speed and low-speed USB 2.0 operation. Texas Instruments identifies superior edge-rate control as a means of producing crisper eye diagrams, which can simplify USB compliance testing. Dual-supply operation allows the digital and analog portions of the device to use separate supply rails. The 1.65 V to 3.6 V operating range supports common 1.8 V and 3.3 V system environments while accommodating lower-voltage interface requirements. Typical uses include USB-to-serial bridges, embedded USB peripherals, industrial data acquisition, portable diagnostic equipment, and USB connectivity for microcontrollers that require an external physical-layer transceiver. Its 14-pin TSSOP format also supports PCB layouts that prioritize a small, widely available package rather than a leadless land pattern. System designers should still verify signal integrity, termination, cable routing, and supply sequencing against the manufacturer datasheet. For USB applications, the transceiver is used between the host or device controller and the connector. Differential pair routing should be short and impedance controlled, while supply and ground connections should provide low-impedance return paths. The device's low-voltage supply range makes it useful for portable equipment, but total system power, connector-current capability, and USB specification compliance remain separate design considerations. This page combines the verified Texas Instruments product information, distributor listings, package details, available cross-reference evidence, and practical guidance for evaluating the TUSB2551PW. It also distinguishes confirmed pin-compatible options from unreported electrical parameters so engineers can identify which data must be checked before approving a replacement.

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TUSB2551PWR - USB 2.0 Half Transceiver | Texas Instruments (Tape & Reel)
TUSB2551PWR

TUSB2551PWR - USB 2.0 Half Transceiver | Texas Instruments (Tape & Reel)

Texas Instruments TUSB2551PWR is a single USB 2.0 half-rate transceiver supporting full-speed operation up to 12 Mbit/s and low-speed operation up to 1.5 Mbit/s in a 14-pin TSSOP package. The device operates from a 1.65 V to 3.6 V supply, making it suitable for low-voltage USB connectivity and embedded systems. Its integrated transceiver architecture supports bidirectional USB data signaling while reducing the external circuitry required for a host, device, or interface application. A USB transceiver is an interface IC that converts digital controller signals into USB-compatible physical-layer signals and receives the corresponding bus signals from a USB connection. The TUSB2551 belongs to the USB interface transceiver hierarchy, alongside USB interface controllers, USB hubs, and USB power-management devices. Unlike a USB controller, it does not implement protocol or enumerate bus devices; it provides the physical-layer path between a USB-capable controller and a connector or cable. The TUSB2551 supports both full-speed and low-speed USB 2.0 operation. Texas Instruments identifies superior edge-rate control as a means of producing crisper eye diagrams, which can simplify USB compliance testing. Dual-supply operation allows the digital and analog portions of the device to use separate supply rails. The 1.65 V to 3.6 V operating range supports common 1.8 V and 3.3 V system environments while accommodating lower-voltage interface requirements. Typical uses include USB-to-serial bridges, embedded USB peripherals, industrial data acquisition, portable diagnostic equipment, and USB connectivity for microcontrollers that require an external physical-layer transceiver. Its 14-pin TSSOP format also supports PCB layouts that prioritize a small, widely available package rather than a leadless land pattern. System designers should still verify signal integrity, termination, cable routing, and supply sequencing against the manufacturer datasheet. For USB applications, the transceiver is used between the host or device controller and the connector. Differential pair routing should be short and impedance controlled, while supply and ground connections should provide low-impedance return paths. The device's low-voltage supply range makes it useful for portable equipment, but total system power, connector-current capability, and USB specification compliance remain separate design considerations. This page combines the verified Texas Instruments product information, distributor listings, package details, available cross-reference evidence, and practical guidance for evaluating the TUSB2551PWR. It also distinguishes confirmed pin-compatible options from unreported electrical parameters so engineers can identify which data must be checked before approving a replacement.

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TUSB320HAIRWBR - USB Type-C CC Logic, X2QFN-12 | TI
TUSB320HAIRWBR

TUSB320HAIRWBR - USB Type-C CC Logic, X2QFN-12 | TI

The Texas Instruments TUSB320HAIRWBR is a USB Type-C Configuration Channel (CC) logic and port controller in an industrial-grade (I-temp) active-high enable variant, packaged in a 12-pin X2QFN (RWB) measuring 1.6 mm × 1.6 mm. The device operates from a single 3.3 V supply and supports USB Type-C Specification 1.1 while remaining interoperable with 1.0 systems. It advertises and detects up to 3 A of VBUS current per Type-C current-mode rules and supports DFP (Source), UFP (Sink), and DRP (Dual Role) port roles selected through MODE pins. A USB Type-C Configuration Channel Logic IC is a state-machine controller that sits between a USB Type-C receptacle and the application processor or USB controller. Its job is to negotiate attach/detach events, cable orientation (CC1/CC2 polarity), role (host vs device), and current advertisement (default 500 mA, 1.5 A, or 3 A) through the CC1/CC2 pull-up and pull-down signalling defined by the USB-IF Type-C specification. Higher up the hierarchy it is an Interface IC > USB Interface IC; below it is the CC PHY layer. Key features include: integrated 5.1 kΩ CC pull-up resistors that can be toggled for DRP toggle, hardware MODE pin configuration (no firmware needed), active-high enable (EN) pin for power sequencing, low standby current with a dedicated low-power mode, and HBM ESD protection on CC pins. The X2QFN-12 RWB package keeps the device under 3 mm² footprint, ideal for compact dongles, hubs, and embedded platforms. Typical applications are any 5 V / 3 A USB Type-C ports that need a low-BOM CC controller: travel chargers, USB Type-C dongles, adapters, hubs, docking stations, smartphones, tablets, and notebooks. Because it operates as a standalone state machine with no MCU required, it is well-suited to cost- and board-area-sensitive designs. Design consideration: place the 100 nF decoupling capacitor within 2 mm of VCC and keep the CC traces short, matched, and away from switching nodes to preserve signal integrity. A 0 Ω or ferrite series resistor on VBUS is optional but recommended to limit inrush current at attach. This page synthesizes distributor pricing, drop-in alternatives, application pairings, and design notes not found in the manufacturer datasheet, optimized for engineers sourcing USB Type-C port controllers.

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TUSB320LAIRWBR - USB Type-C CC Logic & Port Controller | TI
TUSB320LAIRWBR

TUSB320LAIRWBR - USB Type-C CC Logic & Port Controller | TI

The Texas Instruments TUSB320LAIRWBR is a USB Type-C configuration channel (CC) logic and port controller housed in a 12-pin X2QFN (RWB) package measuring 1.6 mm x 1.6 mm. It supports USB Type-C Specification 1.1, is backward compatible with 1.0, advertises and detects up to 3 A of VBUS current, and operates from a 2.7 V to 5 V supply. Configuration modes include Host Only (DFP/Source), Device Only (UFP/Sink), and Dual Role Port (DRP) for accessories, hubs, smartphones, and laptops. The "L" variant removes I2C and adds GPIO-controlled mode selection for ultra-low-power BOMs. What is a USB Type-C port controller? A USB Type-C port controller is an interface IC that sits between a USB 2.0 data path and the Type-C receptacle, managing the Configuration Channel (CC) pins that detect cable attach/detach, determine plug orientation (CC1 vs CC2), advertise the source/sink current capability through Rp/Rd pull-up/pull-down resistors, and negotiate power-role swap for USB Power Delivery. It belongs to the broader hierarchy of interface ICs -> USB interface ICs -> Type-C controllers -> USB Power Delivery controllers, occupying the link layer just above the physical connector. Key differentiating features include integrated CC logic, automatic DRP toggle, support for audio and debug accessory modes, an active-high ENABLE pin, and an open-drain INT output for interrupt-driven host polling. The device is offered in both I2C-configurable (TUSB320I) and pin-strapped/GPIO (TUSB320L) variants within the same X2QFN-12 footprint, allowing PCB reuse between firmware-driven and BOM-optimized designs. Operating temperature is -40 C to +85 C (industrial). The TUSB320L architecture is a pure hardware state machine that samples the CC1/CC2 pins, drives the appropriate Rp current source or Rd pull-down, and reports attach/orientation events to the application processor through dedicated GPIO flags. This eliminates the firmware overhead of I2C register polling and reduces quiescent current for battery-powered devices. Compared to discrete USB-C implementations using comparators and FETs, the TUSB320L integrates Rp/Rd biasing and accessory detection in a single 1.6 mm x 1.6 mm chip. Typical applications include USB Type-C wall adapters, smartphone charging cradles, accessory-mode audio adapters, USB-C hubs and docks, notebook and tablet Type-C ports, and USB-C debug ports for embedded development. It is widely used wherever a 5 V / up to 3 A Type-C source or sink is needed without USB PD negotiation. A key design tip - because the TUSB320L has no I2C, role selection and current-mode advertisement must be hard-wired through MODE pin resistors at power-up. Layout the CC1/CC2 traces as a 90 ohm differential pair with the connector ground return, and decouple VDD with a 0.1 uF X7R ceramic placed within 2 mm of pin 12. This page synthesizes TI datasheet parameters, distributor pricing, drop-in alternatives (same-brand first, cross-brand verified), and PCB design notes not duplicated in the manufacturer datasheet, giving procurement and design engineers a one-stop reference for the TUSB320LAIRWBR.

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TUSB3210PM - USB 2.0 8052 Controller | Texas Instruments
TUSB3210PM

TUSB3210PM - USB 2.0 8052 Controller | Texas Instruments

The Texas Instruments TUSB3210PM is an integrated USB 2.0 full-speed general-purpose device controller with an 8052-based microcontroller, 8K x 8 RAM, and programmable general-purpose I/O in a 64-pin LQFP package. It supports USB data rates up to 12 Mbit/s and provides USB suspend, resume, and remote wake-up operation for connected peripheral, control, and human-interface-device designs. A USB general-purpose device controller is an application-specific microcontroller category that integrates a USB full-speed serial interface with embedded firmware execution and general-purpose I/O. The TUSB3210 sits within the hierarchy of semiconductor, embedded microcontroller, application-specific microcontroller, and USB interface controller devices. This integration reduces the need for a separate USB interface IC while retaining programmable behavior for product-specific USB functions. The principal feature set includes USB 2.0 full-speed compliance, a 12 Mbit/s supported USB data rate, suspend, resume, and remote wake-up support, and 8K x 8 bytes of RAM for application development. The controller also supports multiproduct designs with one code base and one controller, including configurations covering up to 16 products with one chip. Its programmability allows the same USB-connected platform to address multiple peripheral roles without relying on a fixed-function bridge. Internally, the TUSB3210 combines an 8052-compatible microcontroller with USB device-controller logic and general-purpose I/O. The 8K x 8 RAM organization provides 8,192 bytes of data storage for firmware variables, descriptors, buffers, and working state. Because the part is programmable rather than a fixed protocol translator, engineers can implement device-specific enumeration behavior, vendor requests, HID reports, status signaling, or other USB functions in one compact 64-LQFP device. Typical implementations include USB-to-serial adapters, keyboard and mouse controllers, industrial input modules, portable diagnostic equipment, programmers, and general USB I/O expansion boards. The 64-pin LQFP package also exposes enough pins for multiple GPIO functions, clocking connections, and USB bus-interface requirements, although a complete 64-pin pin map is not present in the supplied verified excerpts. The principal design consideration is that USB firmware, descriptor development, and bus-routing validation remain necessary because this is a programmable controller rather than a fully finished USB peripheral. Layout should follow the manufacturer's recommended USB data-path guidance, provide clean return-current paths, and use appropriate decoupling. Exact operating-voltage, clock, temperature, and pin-function details should be confirmed in the manufacturer datasheet before schematic release. This page consolidates the verified distributor identification, USB 2.0 and 8052 controller description, package information, RAM capacity, pricing indication, and sourcing links into an engineering-focused view. It also separates verified facts from unavailable detailed specifications and documents why few defensible drop-in replacements can be confirmed from the supplied cross-reference results.

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TUSB321RWBR - USB Type-C CC Logic 3A X2QFN-12 | Texas Instruments
TUSB321RWBR

TUSB321RWBR - USB Type-C CC Logic 3A X2QFN-12 | Texas Instruments

The Texas Instruments TUSB321RWBR is a USB Type-C configuration channel (CC) logic and port control device with VCONN support, packaged in a 12-pin X2QFN (1.6x1.6 mm) land-grid array. It implements the CC signaling required by USB Type-C Specification 1.1 and remains backward compatible with USB Type-C Specification 1.0, advertising up to 3 A of current through a dedicated current mode pin. A USB Type-C CC logic device is a specialized interface IC that manages the configuration channel pins of a USB Type-C connector. Within the system hierarchy, it sits between the USB Type-C connector and the USB controller or power path, belonging to the interface IC family inside integrated circuits. The CC logic block monitors the CC1 and CC2 pins for pullup or pulldown resistances to determine port attach and detach, cable orientation, and role detection, which are mandatory functions for any Type-C port. Key features include three mode configurations - host only (DFP/Source), device only (UFP/Sink), and dual role port (DRP) - where the device alternates between DFP and UFP roles per the Type-C Specifications. An integrated VCONN switch powers electronically marked (e-marked) cables, and dead battery mode allows a sink device to present as a Type-C device even before system power is available. Technically, the TUSB321 integrates CC termination, Rp/Rd detection, cable orientation indication, and port power control in a single low-power die, minimizing external components and bill-of-materials cost. The compact X2QFN package with 1.6x1.6 mm footprint suits space-constrained portable designs. Typical applications include smartphones, tablets, laptops, docking stations, chargers, and USB Type-C enabled accessories. Any design needing compliant Type-C attach detection and current advertisement benefits from this device. For design, place the TUSB321RWBR close to the Type-C connector to keep CC traces short, decouple VCC with a 1 uF capacitor, and configure the current mode pin for the intended 3 A advertisement level as described in TI datasheet (SLVSDF4).

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TUSB321RWBR-Q1 - USB Type-C CC Logic Port Control | TI
TUSB321RWBR-Q1

TUSB321RWBR-Q1 - USB Type-C CC Logic Port Control | TI

The Texas Instruments TUSB321RWBR-Q1 is an automotive-grade USB Type-C configuration channel (CC) logic and port control IC with VCONN support, provided in a compact 12-pin X2QFN package measuring just 1.6 mm x 1.6 mm. Operating from a 4.5V to 5.5V supply, it enables USB Type-C ports with the CC logic needed for Type-C ecosystems while meeting the USB Type-C Specification 1.1 and remaining backward compatible with Specification 1.0. A USB Type-C port controller (also called a CC logic chip or port control IC) is a small companion device that manages the configuration channel pins of a Type-C connector. It sits in the hierarchy: port controller -> USB interface IC -> USB connectivity semiconductor -> power/data management. It detects attach and detach events, determines cable orientation, performs role detection, and advertises current capability through the dedicated current mode pin. Key features include support for up to 3A of current advertisement through the dedicated current mode pin, configurable port roles of DFP (source), UFP (sink), or dual role port (DRP), and integrated VCONN supply switching for actively marked cables. The device autonomously handles Rd/Rp termination switching on the CC pins according to cable orientation, offloading this logic from the system microcontroller. The TUSB321 implements the CC layer with a simple pin-strap configuration (PORT pin) rather than an I2C interface, minimizing firmware complexity and cost for systems that do not need Power Delivery negotiation. Its automotive qualification (AEC-Q100) makes it suitable for infotainment, telematics, and charging ports in vehicles, while the 1.6 mm x 1.6 mm X2QFN footprint fits space-constrained smartphone, tablet, and accessory designs. Typical applications include automotive USB Type-C charging ports, host and device port attach detection in notebooks, docking stations, and power-bank sink/source role management. Design tip: strap the PORT pin for the required role at power-up; if you later need USB Power Delivery negotiation, migrate to the I2C-controlled TUSB322 family, which shares the same X2QFN footprint.

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TUSB3410IVF - USB to UART Bridge | Texas Instruments
TUSB3410IVF

TUSB3410IVF - USB to UART Bridge | Texas Instruments

Texas Instruments TUSB3410IVF is a USB-to-UART bridge controller with an integrated 8052 microcontroller, 10 kB ROM, UART, I2C, and IrDA support, and a 32-pin LQFP (VF) package. It operates from a 3 V to 3.6 V supply and is specified for temperatures from -40°C to +85°C, making it suitable for industrial embedded-control systems that need to connect a legacy UART or IrDA peripheral to a USB host. A USB-to-UART bridge is an interface IC that translates between the packet-based Universal Serial Bus and a character-oriented serial peripheral. Positioned within interface ICs, bridge controllers, serial interface devices, and data-conversion semiconductors, the TUSB3410 reduces the need for a host to implement a proprietary serial protocol directly. Its integrated controller manages USB-to-serial command exchange while external circuitry connects to the system-side serial interface. The TUSB3410IVF combines a 3 V to 3.6 V operating range with integrated ROM and an industrial temperature grade. Its supported UART, I2C, and IrDA connectivity allows one bridge to serve conventional serial equipment or infrared-oriented peripherals. The 32-lead LQFP package provides a conventional surface-mount footprint suitable for automated assembly and compact industrial controller layouts. The device is built around an 8052-compatible microcontroller core with 10 kB of ROM, as identified in the manufacturer product listing. Firmware or configuration can be loaded by the USB host or through external onboard memory using I2C, according to the device documentation. This architecture makes the bridge useful when peripheral behavior must be adapted through firmware rather than implemented entirely in fixed hardware. Typical applications include industrial serial adapters, USB-connected control panels, legacy equipment interfaces, infrared data links, configuration ports, and embedded systems requiring a USB uplink from a UART-based peripheral. The industrial temperature specification supports equipment deployed in factory, instrumentation, and communications environments where consumer-temperature components may be unsuitable. Designers should preserve the exact pin assignments and reference circuitry shown in the manufacturer datasheet, especially for external memory, clock, USB, and serial-interface connections. Power and decoupling should follow the recommended topology, while USB signal routing requires a controlled impedance path and short connection from the controller to the connector. This product page combines the official device description, package and temperature information, replacement considerations, and design-focused guidance. It highlights the practical trade-offs between the industrial TUSB3410IVF and related TUSB3410 ordering variants while keeping sourcing and technical decisions tied to manufacturer documentation.

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TUSB3410RHB - USB to UART Controller | Texas Instruments
TUSB3410RHB

TUSB3410RHB - USB to UART Controller | Texas Instruments

Texas Instruments TUSB3410RHB is a full-speed USB 2.0 to enhanced-UART serial-port controller with an integrated 8052 microcontroller, 10 KB ROM, and 16 KB RAM in a 32-pin VFQFN package with exposed pad. It bridges a USB host connection to an enhanced UART peripheral, allowing legacy serial equipment to use USB without changing its host-side application interface. A USB serial-port controller is a type of interface bridge that translates USB traffic into a conventional serial protocol. In the product hierarchy, the TUSB3410 belongs to interface ICs, USB-to-serial converters, communication bridges, and embedded connectivity semiconductors. Its internal microcontroller can configure the USB interface during boot, load code from the host or external memory through I2C, and support firmware-based adaptation of the UART-facing device. The TUSB3410 family includes 10 KB of ROM for USB boot configuration and 16 KB of RAM available for loading from the host or external onboard memory through I2C. Its USB interface operates at full speed under USB 2.0, while the serial side uses an enhanced UART. The integrated controller reduces the need for an external USB interface microcontroller in legacy serial-port designs. The 32-pin VFQFN exposed-pad package supports compact PCB layouts, but the thermal pad must be connected to the appropriate ground plane. The manufacturer datasheet identifies TUSB3410 as a USB-to-serial-port controller and documents the device as production data. Package, pin, and electrical details should be checked against the current manufacturer datasheet before layout release. Typical uses include legacy industrial serial adapters, POS and peripheral interfaces, data-collection equipment, embedded service ports, and USB-to-UART retrofit products. The internal RAM and ROM are especially useful when the adapter needs device identification, configuration, or firmware loaded by the USB host. A key design consideration is that this device is a protocol controller rather than a complete USB-to-RS-232 electrical transceiver. If the remote endpoint requires RS-232 voltage levels, IrDA signaling, or galvanic isolation, add the appropriate line-driver, receiver, and protection circuitry. This page combines the manufacturer interface description with package-focused alternatives and engineering guidance for USB-to-UART designs. It helps engineers evaluate firmware loading, exposed-pad layout, external-interface requirements, and the distinction between protocol conversion and physical-layer conversion before selecting a replacement.

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TUSB3410VF - USB 2.0 UART IrDA Bridge | Texas Instruments
TUSB3410VF

TUSB3410VF - USB 2.0 UART IrDA Bridge | Texas Instruments

The Texas Instruments TUSB3410VF is a USB 2.0 full-speed serial-port controller that bridges an enhanced UART to a USB host, with additional I2C and IrDA connectivity, in a 32-pin LQFP package. It operates from a 3 V to 3.6 V supply, covers an industrial temperature range of 0°C to 70°C, and includes 10 kB of ROM. The USB 2.0 full-speed interface provides a practical connection path for legacy serial equipment while retaining compatibility with modern host computers. A USB-to-UART bridge is an interface IC that translates USB transactions into a conventional serial-port data stream. In the electronic-component hierarchy, the TUSB3410VF belongs to the USB interface-controller family and combines USB device-controller functionality with UART, I2C, and IrDA serial interfaces. This mixed connectivity allows one device to support USB-to-serial conversion and auxiliary control or infrared communication functions in embedded systems. Key features include USB 2.0 full-speed operation, an enhanced UART serial interface, I2C support, IrDA support, a 3 V to 3.6 V operating supply, and 10 kB of on-chip ROM. The 32-pin LQFP package provides enough pins for the USB data and power connections, UART signals, I2C signals, IrDA functions, clock requirements, and control or configuration pins. Its 0°C to 70°C rating targets commercial and industrial equipment operating without the extended temperature limits of an automotive-grade component. The TUSB3410VF is designed for legacy serial-port migration, where a conventional UART device would otherwise require a computer with a native serial connector. It can also serve as a multi-interface bridge when an installed system needs USB connectivity alongside I2C control or IrDA communication. The dedicated USB interface handles enumeration and data transfer while the UART presents a familiar serial interface to the embedded target. Typical applications include industrial serial adapters, legacy data-acquisition equipment, point-of-sale terminals, test and measurement instruments, embedded control systems, and infrared-capable peripheral interfaces. The component is particularly useful when an existing UART-based product must gain USB connectivity without redesigning its core serial subsystem. Designers should follow the manufacturer datasheet for crystal or clock selection, USB differential-routing requirements, decoupling, pull-up values, and I2C or IrDA implementation. USB signal integrity, connector protection, grounding, and firmware or host-driver compatibility should be verified before production release because the bridge hardware does not eliminate operating-system compatibility constraints. This page combines verified manufacturer and distributor information, package-specific facts, practical application guidance, comparison parameters, and design notes. It also distinguishes verified drop-in candidates from options that require further engineering review, providing useful engineering context beyond a basic distributor listing.

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