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TS3A44159RGTR - 0.45Ω Quad SPDT Analog Switch | TI
The Texas Instruments TS3A44159RGTR is a 0.45-Ω quad-channel single-pole double-throw (SPDT) analog switch housed in a 16-pin VQFN (RGT) 3x3 mm package. Operating from 1.65 V to 4.3 V, it delivers low on-state resistance with excellent Ron matching across four independent 2:1 multiplexers and supports bidirectional signal flow on every channel. Two logic-level control inputs select between the NO/NC paths of all four switches simultaneously, simplifying firmware-driven signal routing. An analog switch is a solid-state semiconductor device that routes analog or digital signals between two or more terminals under the control of a logic-level signal. It belongs to the analog switch and multiplexer family, which sits inside the broader interface IC category of integrated circuits. Quad SPDT switches are commonly used to swap between two sources on four channels at once, an arrangement also called a 2-channel DPDT function in this device. Key features include 0.45 Ω typical on-state resistance, 50 pA typical switch leakage, break-before-make switching to prevent momentary channel cross-connection, and a -3 dB bandwidth greater than 35 MHz. The control inputs are 1.8 V logic-compatible, while supply operation extends from 1.65 V to 4.3 V. ESD protection on the switch pins exceeds 2000 V per the HBM model. Architecturally the part uses CMOS transmission gates with integrated charge-pump-derived well biasing, enabling low Ron and rail-to-rail signal swing on a single positive supply. Ron flatness is held tight across the input common-mode range, which preserves harmonic distortion performance in audio paths. The device draws only microamps of quiescent current, which is essential for battery-powered systems. Typical applications include portable audio routing between headphone jack and Bluetooth receiver, USB 2.0 high-speed signal switching, SPI/I²C bus multiplexing, smartphone audio codec path selection, and PDA or portable media player source switching. Industrial uses include 4-wire resistance measurement multiplexing and analog front-end signal routing. When designing with this part, ensure that the logic-high level on IN1/IN2 exceeds 0.85 x VDD and the logic-low is below 0.15 x VDD to guarantee full CMOS-level switching. Place 0.1 µF bypass capacitors within 5 mm of the VDD pin to keep digital control noise out of the analog path. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical PCB layout guidance not found in the manufacturer datasheet alone.
TS3A4741DCNR - 0.9Ω Dual SPST Analog Switch | TI SOT-23-8
The Texas Instruments TS3A4741DCNR is a 0.9 Ω low on-resistance, low-voltage, single-supply, dual single-pole single-throw (SPST) analog switch housed in an 8-pin SOT-23 (DCN) package. It integrates two independent normally open (NO) switches, each with a 1:1 (SPST) topology, designed for 1.8 V logic compatibility when operated from a single 3 V supply rail. What is an SPST analog switch? An SPST (Single-Pole Single-Throw) analog switch is a solid-state semiconductor device that routes analog signals by electrically connecting or isolating one signal path. The TS3A4741 belongs to the broader category of analog switches and multiplexers, a subfamily of interface ICs used for signal routing in mixed-signal and low-power systems. Compared with mechanical relays, analog switches offer far faster switching speeds, lower power, smaller PCB area, and no mechanical bounce, at the cost of lower absolute voltage and current handling. Key specifications include a 0.9 Ω typical on-resistance (Ron), 1.8 V CMOS-compatible digital logic inputs, rail-to-rail analog signal handling, very low quiescent current, and integrated ESD protection. The two switches operate completely independently, allowing them to be used as separate signal paths or as complementary paths in a single function. The device is fabricated in a CMOS process and supports fast switching speeds, low off-leakage current, and bidirectional analog signal flow. Its small SOT-23-8 footprint and 1.8 V logic compatibility make it well suited to portable and battery-powered designs. Typical applications include audio signal routing in portable devices, switching between two sensors in handheld instruments, power rail multiplexing in low-power systems, and general-purpose signal gating in test equipment and consumer electronics. When designing with the TS3A4741, ensure the analog signal stays within the supply rails to avoid distortion or excessive leakage, and add 0.1 µF decoupling close to VCC. For applications requiring normally closed (NC) switches, use the pin-compatible TS3A4742. This page synthesizes verified distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TS3A4751PWR - 0.9-Ohm Quad SPST Analog Switch | Texas Instruments
The Texas Instruments TS3A4751PWR is a bidirectional, 4-channel, normally-open (NO) single-pole single-throw (SPST) analog switch in a 14-pin TSSOP package. It operates from a single 1.6V to 3.6V supply, delivers a maximum on-state resistance of 0.9 ohm at a 3V supply, and handles rail-to-rail analog signals with fast switching speeds and very low quiescent power. An analog switch is an IC that routes or isolates analog signal paths under digital control. Within the signal-routing hierarchy, the TS3A4751 belongs to the SPST switch family, a subset of analog switches and multiplexers used in signal conditioning and power-management systems. Key features include 0.9-ohm maximum Ron at 3V (1.5-ohm maximum at 1.8V), Ron flatness of 0.4-ohm maximum at 3V, and Ron matching of 0.05-ohm maximum at 3V. The 1.8-V CMOS-compatible digital inputs allow direct interface with low-voltage GPIO when using a 3-V supply, eliminating level-shift circuitry. The device is available in 14-pin TSSOP (PW), 14-pin VQFN (RGY), and 2x2-mm micro X2QFN (RUC) packages. The low Ron supports power-switching and low-distortion signal paths, while rail-to-rail operation preserves full signal swing on 1.8V, 2.5V, and 3.3V rails. Typical applications include low-voltage power switching, audio signal routing in portable devices, battery-powered test points, and general-purpose signal muxing in smartphones, tablets, and industrial sensing modules. Its normally-open configuration makes it suitable for fail-safe, default-disconnected paths. When designing, remember that Ron rises at lower supply voltages: at a 1.8-V supply the maximum Ron is 1.5 ohm, so account for insertion loss and on-resistance flatness in high-fidelity or precision-current paths. According to TI datasheet, the TS3A4751 is the NO-switch counterpart within the TI low-voltage quad SPST family.
TS3A5018PWR - 10-Ohm Quad SPDT Analog Switch | Texas Instruments
The Texas Instruments TS3A5018PWR is a quad single-pole double-throw (SPDT) analog switch designed to operate from a 1.8V to 3.6V supply in a 16-pin TSSOP (PW) package rated from -40C to +85C. It handles both digital and analog signals, and signals up to V+ can be transmitted in either direction. An analog switch is a semiconductor device that selectively connects or disconnects an analog signal path under digital control. It is a fundamental signal-routing building block in the broader family of multiplexers, demultiplexers, and interface ICs. Analog switches provide a low-resistance path when ON and a high-impedance path when OFF, replacing bulky mechanical relays in audio/video routing, data acquisition, and communication systems. Key features include the wide 1.8V to 3.6V operating range (ideal for battery-powered and 3.3V systems), low 10-ohm ON-state resistance with excellent channel-to-channel matching, and low charge injection that minimizes glitches during switch transitions. All four SPDT switches share a common enable function so the entire device can be disabled to reduce power consumption. The TS3A5018 is built on TI CMOS process technology, providing low quiescent power dissipation and high reliability. Bidirectional signal flow means either of the two throw terminals can serve as the port, essential for multiplexing and demultiplexing on the same hardware. Turn-on and turn-off times are fast, supporting high-speed signal routing in data converters and communication interfaces. Typical applications include audio signal routing in portable devices, battery-powered data acquisition front ends, communication interface switching, and test equipment signal multiplexing. The low power consumption and wide supply range make it well suited for portable and industrial designs. Design consideration: the 10-ohm ON resistance introduces series attenuation in high-impedance circuits, so prefer low-impedance loads or buffer the switched node. Place a 0.1uF decoupling capacitor close to the V+ pin, and use the enable pin in battery designs to cut standby current when switching is idle.
TS3USB3000MRSER - DPDT USB 2.0/MHL Switch | TI | UQFN-10
The Texas Instruments TS3USB3000MRSER is a double-pole, double-throw (DPDT) analog switch that combines a USB 2.0 High-Speed (480 Mbps) switch and a Mobile High-Definition Link (MHL) switch in a single 10-pin UQFN (RSE) package measuring 1.5 mm × 2.0 mm. It supports a -3 dB bandwidth of 6.1 GHz on the MHL path and operates from a 2.3 V to 4.8 V supply. The device is designed to share a common USB or Micro-USB connector between USB 2.0 data and MHL video signals in mobile phones, tablets, and portable media devices. A USB switch IC is a special-purpose analog multiplexer that routes high-speed differential signals between a single downstream port and two upstream paths (host vs. MHL sink). In the hierarchy of power management and signal routing components, this part belongs to the USB interface IC category, sitting between the connector and the application processor. DPDT switches such as the TS3USB3000 are critical because they must pass 480 Mbps USB signals and up to 3 GHz MHL content with minimal insertion loss, low crosstalk, and high off-isolation. Key features of the TS3USB3000 include low on-resistance (Ron) on the USB data paths, low on-capacitance (Con) for high-bandwidth signal transmission, 1.8-V-compatible select pins for direct GPIO control from a mobile processor, and a quiescent current of approximately 5 uA. The wide supply range (2.3 V to 4.8 V) covers both 3.3 V system rails and the typical 3.8 V Li-ion battery range without additional regulation. The small 1.5 mm × 2 mm UQFN footprint makes it ideal for space-constrained mobile applications. The TS3USB3000 uses a charge-pump-less architecture with simple CMOS logic-level select inputs. The two select pins (S1 and S0 per TI documentation) determine whether the common port is routed to the USB path or the MHL path. Internal ESD protection on the signal pins improves robustness against connector-level transients, which is critical for hot-plug consumer electronics. Typical applications include smartphones and tablets with MHL-enabled video output, automotive infotainment systems that mirror mobile content via USB or MHL, portable media players, and USB/MHL dongles. The wide bandwidth also makes it suitable for any system needing to multiplex two high-speed differential pairs onto a single connector. When designing with this part, place the device as close as possible to the USB/MHL connector to minimize stub lengths and signal-integrity degradation. Use controlled-impedance differential routing (90 ohm) on both sides of the switch, and provide adequate ground stitching vias along the signal path to maintain return-current continuity. This page synthesizes distributor pricing, pin-compatible alternatives, and practical design notes that are not aggregated in any single manufacturer datasheet or distributor catalog page.
TS5A2053 - 10Ω SPDT Analog Switch | Texas Instruments
The TS5A2053 is a single-pole double-throw (SPDT) analog switch from Texas Instruments, designed to operate from 1.65 V to 5.5 V. It can handle both digital and analog signals, and signals up to V+ can be transmitted in either direction. The device features a low ON-state resistance of 10Ω (typical) and includes an enable pin for power management. It is available in the 8-pin VSSOP (DCU) package, making it suitable for space-constrained applications. An analog switch is a semiconductor device that selectively connects or disconnects an analog signal path based on a digital control signal. It is a fundamental building block in signal routing, multiplexing, and sample-and-hold circuits. Analog switches are part of the broader category of interface ICs, which manage signal integrity and connectivity between different subsystems in electronic systems. Key features of the TS5A2053 include a low ON-state resistance of 10Ω, which minimizes signal attenuation, and a wide operating voltage range from 1.65 V to 5.5 V, allowing compatibility with various logic levels. The device also offers fast switching speeds, with a typical turn-on time of 20 ns and turn-off time of 15 ns, making it suitable for high-frequency signal routing. The enable pin allows the switch to be disabled, reducing power consumption in standby modes. Technically, the TS5A2053 uses a CMOS process that provides low power consumption and high ESD robustness. The device has a bandwidth of 300 MHz, enabling it to pass high-frequency signals with minimal distortion. The ON-state resistance is flat across the input voltage range, ensuring consistent performance. The device also features break-before-make switching, preventing momentary short circuits between channels. Typical applications include audio signal routing, data acquisition systems, and test equipment. In audio systems, the low ON-state resistance and high bandwidth ensure minimal signal degradation. In data acquisition, the switch can route analog signals to an ADC, with the enable pin allowing power saving when not in use. In test equipment, the TS5A2053 can be used for signal multiplexing and routing. When designing with the TS5A2053, it is important to consider the ON-state resistance and its effect on signal integrity. For high-frequency signals, the parasitic capacitance of the switch can cause signal attenuation, so proper PCB layout and termination are recommended. Additionally, the enable pin should be tied to a defined logic level to avoid floating inputs.
TSB011 - Data Unverified, No Confirmed Electronic Component Found
The MPN TSB011 could not be confirmed as a specific electronic component from the verified web data retrieved for this query. Real-time distributor and manufacturer searches returned no unambiguous match for an electronic part with the exact designation TSB011. The search results instead surfaced several unrelated items that share similar designations: an ACCI TannerStone balustrade catalog item (TSB011), a Texas Instruments TSB11C01DL IEEE 1394 FireWire link-layer controller distributed via Rochester Electronics, an Adam Tech TSB-11 terminal block, and an ITT TSB-011 regulator pressure relief device technical service bulletin for automotive fuel systems. What this means: part-number prefixes such as TSB are not exclusive to a single manufacturer, and near-miss designations (TSB011 vs TSB11 vs TSB-011 vs TSB11C01DL) point to completely different products across mechanical, electrical, and automotive domains. Generating electrical specifications for this MPN from these results would risk fabricating data, so all specification values are marked for verification. What is likely related: if the intended part is the Texas Instruments TSB11C01DL, that device is an IEEE 1394 (FireWire) link-layer controller IC classified by DigiKey under Drivers, Receivers, Transceivers within Interface ICs, supplied through Rochester Electronics as an authorized aftermarket source. If the intended part is the Adam Tech TSB-11, that is a terminal block in the Connectors family. Recommended next step: confirm the exact manufacturer prefix and full MPN (including any package suffix) before ordering. This page will be updated once verified datasheet data is available.
TSI384-133ILV - PCIe to PCI-X Bridge 256-BGA | Renesas Electronics
The Renesas TSI384-133ILV is a single-lane PCI Express (PCIe) to PCI/PCI-X bridge IC housed in a 256-ball PBGA (17x17 mm) package. The device supports x1 PCIe link width (configurable to x4 in some variants per datasheet family), bridging PCIe upstream to legacy PCI/PCI-X peripherals, and supports PCI-X frequencies up to 133 MHz and conventional PCI up to 66 MHz. A PCI-to-PCI bridge is a transparent or non-transparent protocol converter that maps transactions between two distinct PCI-family bus segments. PCI Express bridges sit in the broader hierarchy of: PCIe bridge -> PCIe-to-PCI bridge -> I/O bridge -> peripheral controller IC -> interface logic. Within Renesas' PCI/PCIe product family the Tsi384 is the higher-performance, higher-pin-count sibling of the smaller Tsi381 (144-ball BGA, 13x13 mm) for space-constrained designs. Key features of the TSI384-133ILV include transparent, non-transparent, and opaque (semi-transparent) bridging modes, supporting multi-host systems and storage adapter applications requiring domain isolation. The bridge enables superior throughput with up to four PCIe lanes per the family datasheet and supports asymmetric upstream/downstream widths. Industrial temperature grade and RoHS-compliant terminations suit embedded, telecommunications, and industrial computing designs. Architecture-wise the TSI384 combines a hardened PCIe PHY/transaction layer with a PCI/PCI-X controller core operating in conventional or PCI-X mode. The 256-ball PBGA provides the necessary power, ground, and high-speed signal routing headroom for x1 to x4 PCIe widths. Operating supply voltage is 1.2 V core plus I/O rails, supplied via multiple pins. Typical applications include PCI-to-PCI bridging in industrial single-board computers, storage adapter cards requiring domain isolation, legacy I/O expansion for new PCIe-only processors, telecommunications line cards needing PCI/PCI-X peripherals, and embedded PCIe-to-PCI backplane designs. When designing with this part note that it is reported by some distributors as obsolete or under last-time-buy; confirm lifecycle before starting a new design. Use the Renesas cross-reference document to evaluate the smaller-footprint Tsi381-66ILV for cost-sensitive designs. This page synthesises distributor pricing, parametric comparison with cross-brand PCIe bridges, and practical design notes that complement the Renesas Tsi384 user manual referenced in the data sources.
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.
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.
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.
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.
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).
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.
TUSB4041IPAPQ1 - 4-Port USB 2.0 Hub AEC-Q100 | Texas Instruments
The Texas Instruments TUSB4041IPAPQ1 is an automotive-qualified 4-port high-speed 480-Mbps USB 2.0 hub controller in a 64-pin HTQFP (PAP) package with exposed pad. It provides four downstream USB 2.0 ports from a single upstream port, full-speed (12 Mbps), high-speed (480 Mbps), and low-speed (1.5 Mbps) signaling, and operates over -40C to +85C with an automotive-grade qualification. A USB 2.0 hub is a critical interface IC that expands a single USB root port into multiple downstream ports, providing downstream device connect/disconnect detection, overcurrent protection coordination, transaction translation between split USB transactions, and configurable port-power switching. The TUSB4041IPAPQ1 sits in the USB hub controller product hierarchy (USB 2.0 hub -> USB hub -> USB interface IC -> interface IC -> semiconductor) and is widely deployed in automotive infotainment, body electronics, and rear-seat entertainment systems. Key features include integrated USB 2.0 high-speed PHY on every port, pin-strap configuration for battery-charging support, customization via OTP ROM, I2C EEPROM, or I2C/SMBus target interface for VID/PID/port/phy settings, optional upstream port indicator, and individual port power control with overcurrent sensing. The device uses a single 3.3 V supply plus an internal 1.1 V core regulator generated by the on-chip LDO. Internal termination, pull-up/pull-down resistors, and a built-in 5 V VBUS load switch controller (external n-MOSFET required) simplify PCB design. Suspend and remote wakeup signaling are managed in hardware, reducing firmware complexity. Typical applications include automotive head-unit USB ports, rear-seat entertainment hubs, body-control module USB service ports, industrial PC USB expansion, and embedded telematics USB interfaces. AEC-Q100 qualification makes the -Q1 device preferred for road-vehicle applications, while the non-Q1 TUSB4041IPAP serves commercial/industrial environments. When designing with this part, place the external 24.576 MHz crystal (or oscillator) within 5 mm of the XI/XO pins and provide a continuous ground reference under the exposed thermal pad for thermal and EMI performance. Per-port 5 V VBUS switches must use a logic-level n-MOSFET driven by the integrated DP1PWR output to share load-current and fault indications with the host. This page synthesizes distributor pricing for automotive-grade USB hubs, pin-compatible drop-in alternatives, and design considerations from the manufacturer datasheet not always highlighted on distributor listings.
TUSB4041IPAPR - 4-Port USB 2.0 480-Mbps Hub | Texas Instruments
The Texas Instruments TUSB4041IPAPR is a 4-port high-speed 480-Mbps USB 2.0 hub controller in a 64-pin HTQFP (PAP) 10x10 mm package. It provides USB high-speed (480 Mbps) or full-speed (12 Mbps) connections on the upstream port and supports four downstream ports that operate at high-speed, full-speed, or low-speed. The industrial-grade version operates across -40C to +85C, making it suitable for embedded and industrial designs. A USB 2.0 hub controller is a serial-interface bridge that aggregates one upstream USB port into multiple downstream ports while managing the protocol handshakes, transaction translation, and per-port power control dictated by the USB 2.0 specification. It sits within the broader hierarchy of USB controllers -> interface ICs -> power management and connectivity silicon -> mixed-signal semiconductors. The TUSB4041I family supports both self-powered and bus-powered configurations, with integrated USB transceivers and optional battery-charging detection on downstream ports. Key features include 480-Mbps high-speed upstream operation, per-port over-current protection flags, integrated 1.5-kV ESD on USB signal lines, support for compound devices, and I2C/EEPROM configurability for vendor ID (VID), product ID (PID), and port-remap policy. Per-port power-switch control outputs enable ganged or individual port-power switching without external glue logic. The device integrates a UTMI+ low-pin-interface (ULPI) or integrated transceiver variant, a serial-interface engine, and a protocol layer that handles split transactions for full-/low-speed peripherals attached to high-speed upstream links. The HTQFP-64 footprint provides ample ground and power pins for signal-integrity routing on 2-layer consumer-grade boards. Typical applications include USB port expansion on industrial PCs, docking stations, monitors with built-in USB hubs, embedded HMI panels, and POS terminals. The industrial temperature range and integrated charge-detection features also make it a strong fit for automotive-infotainment accessories and medical USB peripherals. When designing with this part, place 27 ohm series termination resistors close to the USB DP/DM pins and provide adequate bulk capacitance on each downstream VBUS rail managed by the controller's power-switch enables.
TUSB4041IPAPRQ1 - 4-Port USB 2.0 Hub, AEC-Q100 | Texas Instruments
The Texas Instruments TUSB4041IPAPRQ1 is an automotive-grade 4-port high-speed USB 2.0 hub controller supporting 480-Mbps upstream and downstream signaling in a 64-pin HTQFP (PAP) 10x10 mm package with an exposed thermal pad. The -Q1 suffix denotes AEC-Q100 qualification, making it suitable for in-vehicle USB expansion where reliability across -40C to +85C is mandatory. It integrates USB 2.0 transceivers, a serial-interface engine, hub repeater, and per-port power control with battery-charge support, allowing direct attachment to automotive head units, IVI systems, and telematics modules. A USB 2.0 hub is a compliant USB device class that expands one upstream port into multiple downstream ports while managing enumeration, power distribution, and transaction translation across a tiered-star topology. The hub sits between a host controller (xHCI/eHCI) and downstream peripherals; the hub repeater manages connectivity, while the hub controller handles split transactions and descriptor management. The TUSB4041I-Q1 family is positioned as an automotive TUSB2.0 hub silicon in TI's broader portfolio of USB interface ICs, falling under the Interface ICs > Audio/Video and broader serializer-deserializer hierarchy of signal-conditioning and protocol-bridging devices. Key features include support for downstream battery charging (DCP, CDP, SDP per BC1.2-like behavior), pin-strap configuration, OTP ROM customization, I2C/SMBus configuration interface, integrated 5V-to-3.3V LDO, and per-port overcurrent protection plus power-switch control outputs. Per-port event indicators are available via an interrupt output, and the part provides both full-speed (12 Mbps) and high-speed (480 Mbps) signaling upstream while supporting low-/full-/high-speed downstream traffic. Architecture-wise, the device combines an ULPI-style internal PHY layer with a hardwired hub controller core. Pin-strap pins allow boot-time selection of VID/PID, removable/non-removable port mapping, and battery-charging mode without external EEPROM, while an optional I2C EEPROM, OTP ROM, or SMBus target interface enables field-customizable configuration. The PAP package's exposed pad offers a low-junction-to-board thermal path, important under hood or behind-dash operating conditions. Typical automotive applications include infotainment USB expansion (rear-seat entertainment, smartphone projection), telematics control units, body and cluster controllers that expose diagnostic or media ports, and in-cabin USB charging outlets requiring BC1.2-class behavior. Industrial variants of the same die (TUSB4041I, no -Q1) target factory USB aggregation and USB-isolated medical-cart hubs. When designing with this part, allocate a generous copper pour under the exposed pad, keep the 24 MHz crystal traces short, and use a 5V-tolerant current-limited power switch per downstream port. The -Q1 qualification grade means PPAP and IMDS data are available from TI on request.
TUSB422IYFPR - USB Type-C Port Controller DSBGA-9 | Texas Instruments
The Texas Instruments TUSB422IYFPR is a USB Type-C port controller with integrated USB Power Delivery (USB PD) physical layer, housed in a 9-ball DSBGA (YFP) package measuring approximately 1.6 mm x 1.6 mm. It supports USB Type-C Cable and Connector Specification and USB Power Delivery 2.0, enabling up to 100 W of negotiated power and alternate-mode signaling through a single USB Type-C connection. The device operates from a single 3.3 V supply and communicates with an external Type-C Port Manager (TCPM) over standard I2C interface up to 400 kHz. A USB Type-C port controller is a specialized interface IC that sits between a USB Type-C receptacle and the application processor in devices such as laptops, tablets, monitors, docks, and power adapters. It performs attach/detach detection on the two Configuration Channel (CC) pins, decodes BMC-encoded USB PD messages, and reports cable orientation, role detection, and current-mode advertisement to the host. Compared with discrete USB-C implementations, a dedicated port controller reduces BOM count, simplifies firmware, and accelerates USB-IF compliance. Key features of the TUSB422 include configurable DFP (Downstream Facing Port), UFP (Upstream Facing Port), or DRP (Dual Role Port) operation, integrated Rp/Rd termination for CC1 and CC2, automatic cable-orientation detection, and a low-power standby mode. The internal BMC PHY uses 9-ohm termination (per USB PD spec) so it can be paired with common external load switches and VBUS power-path controllers without external components. The device is qualified to industrial temperature range (-40C to +85C) and is supplied Pb-free and RoHS-compliant. Architecturally, the TUSB422 separates the protocol layer from the physical layer. The PHY handles BMC encoding, preamble, and collision detection on CC1/CC2; the TCPM firmware running on the host MCU handles policy engine, protocol layer, and device policy manager functions. This partitioning lets OEMs keep policy and security logic in trusted firmware and reuse a single TUSB422 across product families. Typical applications include USB-C power adapters and chargers, notebook/dock side-band controller, USB-C monitors and hubs, smartphones and tablets, and Thunderbolt 3 / USB4 accessory adapters. Designers choose the TUSB422 when they need a small-footprint, TI-trusted USB PD PHY with proven USB Type-C compliance. Design note: TI recommends placing the TUSB422 as close as possible to the USB Type-C connector CC pins. Keep CC1/CC2 traces matched within 1 mm to within the receptacle pads to ensure USB-IF compliance testing passes. Decouple VDD 3V3 with at least 0.1 uF plus 1 uF ceramic capacitors. This page synthesizes distributor pricing, drop-in alternatives, and design notes not always consolidated on the manufacturer datasheet, enabling faster component selection and drop-in replacement decisions.
TUSB7320RKMR - USB 3.0 2-Port xHCI Host Controller | Texas Instruments
The Texas Instruments TUSB7320RKMR is a SuperSpeed USB 3.0 2-port xHCI (eXtensible Host Controller Interface) host controller that bridges a PCI Express upstream port to two USB 3.0 downstream ports, housed in a 100-pin WQFN-MR (RKM) package measuring 9x9 mm with an exposed thermal pad. The device integrates an xHCI 1.0 compliant controller core, supports USB 3.0 (5 Gbps), USB 2.0 (480 Mbps), and USB 1.1 (12/1.5 Mbps) through dual mode ports, and provides USB Battery Charging 1.2 support including CDP/DCP modes for downstream charging. A USB 3.0 xHCI host controller is a specialized protocol bridge that lets a host processor running an xHCI-class driver enumerate and manage downstream USB devices at SuperSpeed, High-Speed, Full-Speed, and Low-Speed. Within the broader hierarchy it sits as an interface IC between the PCI Express fabric and the USB device tree, enabling motherboards, docking stations, and embedded platforms to add or expand USB ports without redesigning the core chipset. The TUSB7320 family is positioned above PCIe-to-USB 2.0 controllers and below root-complex integrated host silicon that bundles USB directly into the SoC. Key features include two USB 3.0 downstream ports operating at 5 Gbps SuperSpeed plus backward compatibility with legacy USB rates, one PCI Express Gen 2 upstream port (x1 lane) running at 5 Gbps, integrated 5V to 3.3V/1.8V/1.2V/0.9V core voltage regulators, and per-port power switching controls. The device supports USB attach/detach protocol, overcurrent detection, and dual-role flexibility via ID-pin and OTG signaling on the upstream port. Architecturally, the TUSB7320 uses a SerDes-based PHY pair per downstream port for SuperSpeed signaling, a hardened xHCI controller engine for transaction translation, and a PCIe physical layer. The internal regulator block removes the need for most external power rails, simplifying board layout. Reference designs in the TUSB73x0 datasheet family describe PCIe edge connector pinout, USB connector wiring, and recommended decoupling for the internal LDO bank. Typical applications include PC motherboards, notebook docking stations, industrial PCs, point-of-sale terminals, USB port replicators, and embedded platforms that need two USB 3.0 downstream ports from a standard PCIe x1 slot. The device is also found in test fixtures and breakout boards that expose USB 3.0 traffic for analyzer capture. When using the TUSB7320RKMR, allocate thermal relief on the exposed pad (EP) and observe the 100 us PCIe reference-clock stable period before deasserting PERST to ensure proper link training. Designers should also follow the inrush current profile on VBUS when enabling ports that may already have devices attached. This page synthesizes distributor pricing, drop-in alternatives from the TUSB73x0 family and cross-vendor host controllers, and practical design notes not found in the manufacturer datasheet.
TUSB7320RKMR - USB 3.0 xHCI 2-Port Host Controller | Texas Instruments
The Texas Instruments TUSB7320RKMR is a SuperSpeed USB 3.0 two-port xHCI host controller with a PCIe x1 Gen 2 upstream interface, packaged in a 100-pin WQFN-MR (RKM) 9x9 mm footprint. The device delivers two downstream USB 3.0 ports supporting SuperSpeed (5 Gbps), high-speed, full-speed, and low-speed USB traffic, and operates from 1.1 V and 3.3 V supplies. It is qualified for the commercial 0 °C to 70 °C range in a green/RoHS-compliant plastic WQFN-100 housing. Per TI product information, the TUSB7320 and its four-port sibling TUSB7340 share the same pin-compatible 100-pin RKM package, allowing board reuse across port-count variants. An xHCI (eXtensible Host Controller Interface) host controller is the silicon that sits between a root-complex PCIe link and the physical USB ports on a system. The xHCI class driver in the OS enumerates USB 3.0/2.0/1.1 devices without requiring companion controllers, so a single TUSB7320 turns a PCIe-capable SoC or add-in card into a fully featured USB root hub. It belongs to the broader hierarchy of bus controllers -> interface ICs -> USB controllers -> SuperSpeed xHCI controllers -> mixed-signal semiconductors. Key features include hardware-automated USB attached SCSI protocol (UASP), PCI Express x1 Gen 2 connectivity, integrated 5 Gbps PHY, per-port battery charging support, and integrated power switching/overcurrent logic. The WQFN-MR package exposes an exposed thermal pad and offers good thermal dissipation in dense designs. The device also supports USB legacy and modern BIOS hand-off, enabling universal compatibility across Windows, Linux, and embedded RTOS hosts. Architecturally, the TUSB7320 uses a PCIe Gen 2 PHY paired with a protocol engine that handles transaction translation, scatter-gather DMA, and xHCI command ring processing. An embedded USB 3.0 PHY provides SuperSpeed signaling, while the USB 2.0 PHY supports the lower-speed pairs. The chip exposes SMBus for management, GPIO for port indicators, and JTAG for boundary-scan test. Typical applications include desktop PC motherboards, industrial embedded PCs, USB 3.0 PCIe add-in cards, docking stations, point-of-sale terminals, industrial PCs, and test-and-measurement chassis that need reliable downstream USB 3.0 connectivity. The pin-compatible TUSB7340 covers the same use cases where four ports are required. When designing with this part, allocate a solid ground reference under the WQFN thermal pad and stitch vias to inner ground planes for the 5 Gbps signal integrity. Provide adequate bulk capacitance on the 1.1 V and 3.3 V rails and follow TI reference layout for PCIe routing (90 ohm differential, length-matched within 150 mil). This page synthesizes distributor pricing, drop-in alternatives, application context, and design guidance that go beyond a single datasheet table.
TUSB7340IRKMT - USB 3.0 4-Port xHCI Host Controller | TI
The Texas Instruments TUSB7340IRKMT is a SuperSpeed USB 3.0-compliant 4-port xHCI host controller with a PCIe x1 Gen 2 host interface, 5 Gbps SuperSpeed throughput, and a 1.1 V core / 3.3 V I/O supply, housed in a 100-pin WQFN-MR (RKM) 9x9 mm package operating from -40C to +85C. A USB xHCI host controller is an interface IC that implements the eXtensible Host Controller Interface standard, offloading USB protocol management from the host CPU. In the power-management and interface hierarchy, it sits between a PCIe root complex and downstream USB physical ports, translating PCI Express transactions into USB 3.0 SuperSpeed, high-speed, full-speed, or low-speed traffic on each downstream port. Key features include four downstream USB 3.0 ports, support for SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) data rates, and a PCIe x1 Gen 2 (5 GT/s) upstream link. This makes the TUSB7340 well suited to designs that must add multiple SuperSpeed ports to an x86 or embedded host with a single PCIe lane. Technically, the TUSB7340 integrates the xHCI controller, PCIe Gen 2 PHY, and USB 3.0 PHYs in CMOS on a single die, with power rails of 1.1 V (core) and 3.3 V (I/O and PHY). The integrated PHYs reduce bill-of-materials complexity and board area compared with discrete PHY-plus-controller architectures. According to the TI TUSB73x0 datasheet, the TUSB7340 and TUSB7320 share a pin-compatible 100-pin RKM package, enabling a common PCB design that supports either two-port or four-port configurations. Typical applications include docking stations, PCI Express add-in cards, embedded industrial computing, and motherboards requiring additional SuperSpeed ports. The four-port count directly addresses designs where hub-chip cascading is undesirable for latency or BOM reasons. Design consideration: because SuperSpeed links run at 5 Gbps, controlled-impedance routing of the USB 3.0 differential pairs and the PCIe link with proper reference planes is essential; follow the TI datasheet layout guidelines for the WQFN-MR exposed-pad package, which must be soldered to a ground pour for thermal and return-path integrity. This page synthesizes distributor pricing context, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
TUSB8020BPHPR - 2-Port USB 3.0 Hub 5Gbps | Texas Instruments
The Texas Instruments TUSB8020BPHPR is a two-port SuperSpeed USB 3.0 hub controller that supports 5.0 Gbps upstream and downstream signaling, housed in a 48-pin HTQFP (PHP) package measuring 7x7 mm. It provides simultaneous SuperSpeed and high-speed/full-speed connections on the upstream port while offering SuperSpeed, high-speed, full-speed, or low-speed connections on the downstream ports, making it a true multi-speed USB 3.0 compliant hub. The device operates from 1.1 V and 3.3 V supplies and exposes USB, GPIO, I2C, and SMBus interfaces for host-side configuration. A USB hub is a device that expands a single USB host port into multiple downstream ports, allowing several peripherals to share one upstream connection. The TUSB8020B belongs to the USB hub controller product family within the broader interface IC taxonomy (USB hub controller -> interface IC -> integrated circuit -> semiconductor). USB 3.0 hubs operate at 5 Gbps SuperSpeed, which is roughly ten times faster than USB 2.0 high-speed (480 Mbps), and are required to remain backward compatible with USB 2.0 and USB 1.1 devices through dedicated signaling pipelines. Key features include two downstream ports, full SuperSpeed 5 Gbps support per port, integrated termination and pull-up/pull-down resistors, per-port or ganged power switching control, configurable through I2C/SMBus, and individual port overcurrent detection. The device supports battery charging (BC1.2) detection logic when paired with an external charger IC. Its commercial temperature range of 0C to 70C and HTQFP package make it suitable for consumer docking stations, monitors, and embedded platforms. The TUSB8020B uses a UTMI/UTMI+ (USB 2.0 Transceiver Macrocell Interface) plus a PIPE (PHY Interface for the PCI Express and USB 3.0 Architectures) physical interface to its internal PHYs, eliminating the need for external PHY components. The hub transaction translator manages bandwidth sharing between USB 2.0 and USB 3.0 traffic streams. Typical applications include desktop and laptop docking stations, USB 3.0 port expanders, multi-function monitors, embedded system host boards, industrial PCs, and storage enclosures with multiple USB 3.0 connectors. When designing with this part, provide a 12 MHz crystal or clock reference and follow the USB 3.0 layout guidelines: 90-ohm differential impedance for SuperSpeed pairs, length matching within 150 mil, and continuous reference planes on adjacent layers. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, application circuits, and practical design notes not consolidated on the manufacturer datasheet landing page.
TUSB8040A1RKMR - 4-Port USB 3.0 Hub, 100-WQFN | Texas Instruments
The Texas Instruments TUSB8040A1RKMR is a four-port USB 3.0 compliant hub controller housed in a 100-pin WQFN-MR (9x9 mm) package with an exposed thermal pad, operating from a single 3.3V supply over the commercial 0C to 70C temperature range. The device supports simultaneous SuperSpeed USB (5 Gbps) and high-speed or full-speed signaling on the upstream port, while each downstream port independently supports SuperSpeed, high-speed, full-speed, or low-speed connections, making it a flexible building block for hosts that must expose multiple downstream USB devices. A USB hub is a tier-1 interconnect device in the USB topology that expands one upstream port into multiple downstream ports while managing transaction translation, power distribution, and signaling at each speed node. The TUSB8040A1 family implements a USB 3.0 SuperSpeed transaction translator along with the classic USB 2.0 hub repeater logic on a single die, exposing configuration pins, GPIOs, and battery-charging controls so designers can scale the same part from low-cost consumer docks to high-port-count industrial hosts. Key features include support for USB 3.0 SuperSpeed on all four downstream ports, integrated USB 2.0 hub repeater logic, configurable downstream port power switching and over-current inputs, an I2C/SMBus slave interface for status and configuration, multi-status LED indicators, and pin-selectable SMBus or I2C address options. The 100-pin WQFN-MR footprint provides a compact thermal path through the exposed pad, allowing sustained 5 Gbps operation without external heatsinking in well-ventilated enclosures. Architecturally, the TUSB8040A1 combines a USB 3.0 physical layer capable of 5 Gbps serial signaling, a SuperSpeed transaction translator, a USB 2.0 high-speed hub controller, and an integrated power-management block that handles per-port VBUS switching and over-current fault reporting. The configuration strap pins, combined with the I2C/SMBus interface, allow firmware to control per-port battery-charging modes, compound hub behavior, and the device's dual-role flexibility. Typical applications include USB 3.0 docking stations, desktop and laptop port-replicators, industrial PCs with multiple USB peripherals, embedded platforms requiring USB-3 Vision or USB mass-storage fan-out, and embedded host boards for point-of-sale, kiosk, and test-and-measurement systems where a processor only exposes one upstream USB-3 port but the design requires multiple downstream USB-3 endpoints. When designing with the TUSB8040A1, follow the High-Speed PCB layout guidelines in the manufacturer datasheet: route the SuperSpeed differential pairs with 90 ohm differential impedance, place the 12 MHz crystal close to the XI/XO pins, and connect the exposed thermal pad to a solid ground plane. Per-port VBUS switches must be sized for the cumulative downstream load and protected against inrush faults to comply with USB-IF compliance testing. This page synthesizes distributor stock data, cross-reference alternatives, and practical PCB layout notes that go beyond the manufacturer datasheet, helping engineers select and integrate the TUSB8040A1RKMR quickly into new USB-3.0 host designs.
TUSB8041ARGCR - 4-Port USB 3.1 Hub Controller | Texas Instruments
The Texas Instruments TUSB8041ARGCR is a 4-port SuperSpeed USB 3.1 Gen1 hub controller operating at 5 Gbps, housed in a 64-pin VQFN (RGC) 9x9 mm package with exposed thermal pad. It provides upstream USB 3.0 connectivity and four downstream ports, each capable of SS (5 Gbps), HS (480 Mbps), FS (12 Mbps), and LS (1.5 Mbps) signaling. A USB hub is a USB class-defined device that expands a single upstream USB port into multiple downstream ports while managing power, enumeration, and transaction translation. The TUSB8041 family sits within the broader hierarchy of USB controllers, peripheral interface ICs, and interface ICs in the semiconductor taxonomy. It supports USB Type-A downstream ports and is commonly used to add four ports to a system with a single USB 3.0 upstream port. Key features of the TUSB8041ARGCR include support for USB Battery Charging (BC) 1.2 charging downstream ports, integrated 5-V tolerant I/O, per-port power switching with individual enable control, and configuration via GPIO, I2C, or SMBus interfaces. The device also supports USB Type-C port-reversal logic when used with an external Type-C controller, and offers pin-selectable upstream port configuration. Internal spread-spectrum clocking reduces EMI on the SuperSpeed signal paths. The architecture combines a USB 2.0 hub controller and a USB 3.0 hub controller on a single die, sharing common configuration logic. Per-port SuperSpeed PHY blocks operate independently, and traffic scheduling is managed by a hardware transaction translator. The device enumerates as a compound USB hub and supports standard USB hub class commands plus vendor-specific commands for charger-port behavior and GPIO control. Typical applications include USB expansion in desktop motherboards, docking stations, automotive infotainment head units, industrial PCs, monitor USB hubs, and embedded computing platforms that require multiple downstream USB 3.0 ports from a single host connection. The wide industrial temperature support enables in-vehicle and factory-floor deployment. When designing with this part, observe the PCB layout guidelines in the datasheet: keep the SuperSpeed differential pairs matched to 85 ohm differential impedance, decouple each VBUS supply pin with a 0.1 uF ceramic capacitor, and place the upstream port common-mode chokes close to the connector. Daisy-chained hubs are supported up to 5 tiers per USB specification. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical PCB layout notes not consolidated in the manufacturer datasheet alone.