PI3USB30532 - USB3.0/DP1.2 6:4 Matrix Switch | Diodes Incorporated
MPN: PI3USB30532 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
PI3USB30532 Overview
A crossbar matrix switch is a signal-routing device that connects any of several input differential lanes to any of several output lanes under digital control. Within the signal-integrity product hierarchy (switch IC -> high-speed differential switch -> signal conditioning -> connectivity IC), crossbar switches are essential wherever a single high-speed connector must serve multiple protocols, such as USB Type-C systems that negotiate between USB data and DisplayPort Alt Mode.
Key features include true bi-directional signal flow, which eliminates direction-control complexity in reversible Type-C connections, and dedicated multiplexing of the AUX and HPD (AUX-HPD) channels alongside the main differential lanes, so a single IC handles the full Type-C alternate-mode switch function. The device offers excellent signal integrity for high-speed signals and low power dissipation.
According to the Diodes Incorporated product brief, insertion loss is -1.2 dB and return loss is -21 dB at the 5 Gb/s data rate of USB 3.0, numbers that indicate the switch consumes only a small fraction of the 7.5 dB channel budget while maintaining good impedance match for eye-diagram compliance at SuperSpeed rates.
Typical applications include USB Type-C Alt Mode docking stations, laptops, tablets and 2-in-1 computers, monitor and display input switching, and port replication designs that must arbitrate between USB 3.x and DP1.2 on shared lanes.
A key design consideration is supply and control sequencing: the 3.3V supply rail and the SEL/control logic must be established before high-speed signals are present, and the reversible Type-C orientation logic must drive the matrix selection accordingly.
This page synthesizes distributor availability, drop-in alternative analysis, pricing context, and practical design notes not found in the manufacturer product brief.
Drop-in alternatives for PI3USB30532 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PI3USB31532
✅ Drop-In📋 Reference alternative (not in catalog)
PI3USB30532 Maximum Ratings & Electrical Characteristics
| Function | 6:4 differential channel bi-directional matrix switch |
| Supported Protocols | USB 3.2 Gen 1 (USB 3.0) / DP1.2 |
| Supply Voltage | 3.3 V |
| Data Rate | 5 Gb/s (USB 3.0 SuperSpeed) |
| Insertion Loss | -1.2 dB at 5 Gb/s |
| Return Loss | -21 dB at 5 Gb/s |
| Channel Configuration | 1x USB3.0 lane, or 1x USB3.0 + 2x DP1.2 channels, or 4x DP1.2 channels |
| AUX/HPD Multiplexing | Yes - AUX-HPD channels multiplexed to Type-C connector |
| Signal Direction | Bi-directional |
| Package | 40-TQFN (3x6 mm) |
| Mounting Type | Surface Mount |
| Power Dissipation | Low power dissipation (per manufacturer product brief) |
| RoHS Status | Compliant (per Diodes Incorporated product page) |
PI3USB30532 40-tqfn (3x6 mm) Pin Configuration Guide
Pin configuration for PI3USB30532 (40-tqfn (3x6 mm) package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for PI3USB30532.
Refer to the datasheet for full pin configuration.
Typical Applications
PI3USB30532 is suitable for 6 applications: USB Type-C Alt Mode Docking Stations, Laptops, Tablets and 2-in-1 Computers, Monitors and Display Input Switching, Port Replicators and Multi-Protocol Adapters, Gaming and Handheld Console Repair / Board-Level Service, Industrial and Embedded Type-C Host Systems.
USB Type-C Alt Mode Docking Stations
In a Type-C dock, the connector's four SuperSpeed lanes must be re-purposed on the fly between USB 3.0 data and DisplayPort video. The PI3USB30532 fits this role directly: its 6:4 matrix switches between one USB 3.0 lane, one USB 3.0 lane plus two DP1.2 channels, or four DP1.2 channels, matching the three modes a dock must support. Because the AUX and HPD channels are multiplexed internally, DisplayPort link training signaling is routed without extra analog switches. With only -1.2 dB insertion loss at 5 Gb/s, the switch preserves the USB 3.0 link budget across the dock's PCB and connector hops, and bi-directional operation handles connector flip without external direction logic.
Recommended
Laptops, Tablets and 2-in-1 Computers
Portable computers that expose a single USB-C port must deliver USB 3.0 data and DP1.2 video from shared lanes while remaining battery-efficient. The PI3USB30532 operates from a 3.3V rail with low power dissipation, a combination the manufacturer highlights for exactly this class of device. Its -21 dB return loss at 5 Gb/s maintains good channel impedance matching even after the multiple board-to-flex transitions typical of thin notebook form factors. Bi-directional switching supports the reversible Type-C plug orientation without additional control FETs, and the compact 40-TQFN (3x6 mm) footprint fits the dense board real estate around the connector.
Recommended
Monitors and Display Input Switching
Displays that accept USB-C input need to steer four DP1.2 lanes plus AUX/HPD from the Type-C connector to the scaler, while also potentially supporting USB 3.0 upstream data. The PI3USB30532 covers both cases: in 4-lane mode it routes a full DP1.2 main link, and in hybrid mode it splits the lanes between DP and USB 3.0. AUX-HPD multiplexing is critical here because DP link training depends on clean AUX and HPD signaling. Insertion loss of -1.2 dB at 5 Gb/s keeps video signal amplitude within DP1.2 receiver specs across the input board, and the 3.3V supply matches typical monitor standby and main rails.
Recommended
Port Replicators and Multi-Protocol Adapters
Aftermarket adapters that expose both USB-A 3.0 and DisplayPort outputs from one Type-C plug require exactly the arbitration the PI3USB30532 provides: dynamic selection between USB 3.0-only, USB 3.0 + 2-lane DP, and 4-lane DP configurations under USB PD Alt Mode negotiation. The switch's -1.2 dB insertion loss at 5 Gb/s is well within the adapter's tight signal budget since these products typically have little board area for equalization. Low power dissipation matters for bus-powered adapters that must respect the connector's power contract, and the 40-pin TQFN (3x6 mm) package suits the miniature PCBs used in dongles.
Recommended
Gaming and Handheld Console Repair / Board-Level Service
Handheld consoles that output video over USB-C - the Nintendo Switch being a widely documented example - use the PI3USB30532 to switch SuperSpeed lanes between docked video output and handheld USB data. The part is prominent in publicly available repair documentation and reverse-engineered schematics for these platforms. For board-level service, understanding the 6:4 lane mapping and AUX-HPD routing helps diagnose no-video or no-USB fault conditions: a failed switch typically presents as one protocol working while the other does not. Replacement requires hot-air rework of the 40-TQFN package and confirmation that the replacement is a genuine Pericom/Diodes part, as counterfeits exhibit link-integrity failures at 5 Gb/s.
Recommended
Industrial and Embedded Type-C Host Systems
Industrial panel PCs, thin clients, and embedded hosts increasingly standardize on a single USB-C service port for both display configuration and data access. The PI3USB30532's 3.3V supply, low quiescent power, and protocol flexibility let one connector serve commissioning video (DP1.2) and field data transfer (USB 3.0) without mechanical redundancy. Its bi-directional matrix removes orientation-state firmware complexity, valuable in systems with infrequent firmware updates. The -1.2 dB / -21 dB insertion and return loss figures at 5 Gb/s provide margin for the longer traces and additional connectors typical of industrial enclosures, though full channel simulation is still recommended for panel-mounted ports with remote cabling.
Recommended
Recommended Products Summary
Engineering reference data for PI3USB30532 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PI3USB31532 |
|---|---|---|
| Package | 40-TQFN (3x6 mm) | 40-TQFN (3x6 mm) - same package family, verify footprint |
| Brand | Diodes Incorporated (Pericom) | Diodes Incorporated (Pericom) |
| Switch Configuration | 6:4 differential bi-directional matrix | 6:4 differential bi-directional matrix |
| Supported Protocols | USB 3.2 Gen 1 (USB 3.0) / DP1.2 | USB 3.0 / DP1.2 |
| AUX/HPD Multiplexing | Yes | Yes |
| Lifecycle Status | Active | Active (promoted in joint Diodes product highlight) |
Key Differentiators
- Integrated AUX-HPD multiplexing (vs PI3USB31532)
- Full 4-lane DP1.2 capability on one connector (vs single-protocol USB 3.0 muxes)
- Modest channel loss at 5 Gb/s (vs generic passive mux alternatives)
Design Notes
Budget the channel around the switch's measured figures: -1.2 dB insertion loss and -21 dB return loss at 5 Gb/s per the Diodes product brief. Keep the switch close to the Type-C receptacle, route 100-ohm differential pairs with length matching within 5 mil intra-pair, and minimize via transitions on the SuperSpeed lanes. Run USB 3.0 eye-diagram simulation on the full host-to-connector path; the switch consumes about 16% of a typical 7.5 dB post-cable loss budget, leaving margin for two connectors plus short traces but not for long boards.
Power the PI3USB30532 from a clean 3.3V rail with 100 nF ceramic decoupling placed within 2 mm of the supply pin, plus a 4.7 uF bulk capacitor nearby. Ensure the 3.3V rail is established before the USB PD controller enables VBUS lane negotiation, so the matrix is in a defined state when SuperSpeed or DP signals first appear. Although the part has low power dissipation, verify the supply ramp sequence with the system PD controller to avoid transient undefined lane states during hot-plug.
Do not confuse the PI3USB30532 with the PI3USB31532 lane mapping - both are 6:4 crossbar switches in the same family and package class, but the lane-to-pin assignments must be verified against the datasheet before assuming footprint interchangeability. Also, this switch supports 5 Gb/s USB 3.0/3.2 Gen 1 only; it is not suitable for USB 3.2 Gen 2 (10 Gb/s) or USB4 designs. Finally, the DP AUX/HPD routing is part of the device function - do not add external AUX switches that would double the loss.
Compliance Information
RoHS compliance and lead-free packaging indicated per Diodes Incorporated product listing. REACH, halogen-free and conflict-minerals status were not stated in the captured sources - confirm on the official product page.
