TUSB2E22 - eUSB2 to USB 2.0 Dual Repeater | Texas Instruments
MPN: TUSB2E22 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.28 | $228.00 |
| 500 | $2.05 | $1,025.00 |
| 1,000 | $1.82 | $1,820.00 |
Drop-in alternatives for TUSB2E22 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TUSB2E22YCGT
β Drop-Inπ Reference alternative (not in catalog)
TUSB2E22YCGR
β Drop-Inπ Reference alternative (not in catalog)
TUSB2E22RZAT
β‘ Same Packageπ Reference alternative (not in catalog)
TUSB2E22RZAR
β‘ Same Packageπ Reference alternative (not in catalog)
TUSB2E22YFPR
β Drop-Inπ Reference alternative (not in catalog)
TUSB2E22 Maximum Ratings & Electrical Characteristics
| Type | eUSB2 to USB 2.0 Dual Repeater |
| Number of Channels | 2 |
| USB Compliance | USB 2.0, eUSB2 (rev 1.1) |
| Supported Signaling | Low-Speed (LS), Full-Speed (FS), High-Speed (HS) |
| eUSB2 Signaling Voltage | 1.2 V |
| USB 2.0 Signaling Voltage | 3.3 V |
| Crossbar Mux | 2:2 |
| Host/Device Mode | DRD (Dual Role Device) |
| Compensation Settings | 4 (via EQ0, EQ1 pins) |
| Supply Voltage VDD3V3 | 3.3 V |
| Supply Voltage VDD1V8 | 1.8 V |
| Power-Up Reset | RESETB active low |
| Package Options | 25-DSBGA (2x2 mm), 20-VQFN-FCRLF (3.5x3.5 mm) |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] |
| RoHS Status | Compliant |
TUSB2E22 Pin Configuration
| Pin A1 | VDD3V3 β 3.3V power supply |
| Pin A2 | eDP0 β eUSB2 data positive for port 0 |
| Pin A3 | eDM0 β eUSB2 data negative for port 0 |
| Pin B1 | VDD1V8 β 1.8V power supply |
| Pin B2 | GND β Ground |
| Pin B3 | DP0 β USB 2.0 data positive for port 0 |
| Pin C1 | DM0 β USB 2.0 data negative for port 0 |
| Pin C2 | EQ0 β Compensation setting pin 0 |
| Pin C3 | EQ1 β Compensation setting pin 1 |
| Pin D1 | RESETB β Active low reset |
| Pin D2 | eDP1 β eUSB2 data positive for port 1 |
| Pin D3 | eDM1 β eUSB2 data negative for port 1 |
| Pin E1 | DP1 β USB 2.0 data positive for port 1 |
| Pin E2 | DM1 β USB 2.0 data negative for port 1 |
| Pin E3 | GND β Ground |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TUSB2E22 is suitable for 6 applications: USB Type-C Ports on Laptops and Desktops, Docking Stations, USB Hubs, Embedded Systems with eUSB2 SoCs, Mobile Devices and Tablets, Industrial PCs and IoT Gateways.
USB Type-C Ports on Laptops and Desktops
The TUSB2E22 enables USB 2.0 compliance on modern processors with eUSB2 interfaces. Its 2:2 crossbar mux allows routing USB 2.0 signals to the correct Type-C pins for receptacle flipping. The device supports LS/FS/HS signaling, ensuring compatibility with legacy USB devices. With four compensation settings, designers can optimize signal integrity for different PCB trace lengths and connector losses, making it ideal for compact laptop and desktop designs where space is limited.
Recommended
Docking Stations
In docking stations, the TUSB2E22 bridges the eUSB2 interface of the host SoC to multiple USB 2.0 downstream ports. Its dual repeater architecture supports two independent channels, allowing simultaneous connection of multiple peripherals. The device's DRD capability enables both host and device modes, making it versatile for docking applications. The 2:2 crossbar mux simplifies routing in complex PCB layouts, and the compensation settings ensure reliable operation over longer cable lengths.
Recommended
USB Hubs
The TUSB2E22 can be used in USB hubs to interface between an eUSB2-capable host controller and downstream USB 2.0 ports. Its dual repeater design allows two independent channels, which can be used to connect to two separate USB ports or to implement a crossbar for flexible routing. The device supports both host and device modes, making it suitable for hub designs that need to support various connection scenarios. The low-voltage eUSB2 interface reduces power consumption and enables integration with advanced SoCs.
Recommended
Embedded Systems with eUSB2 SoCs
Many modern embedded SoCs use eUSB2 for their USB interfaces to reduce I/O voltage and power. The TUSB2E22 provides the necessary level shifting and signal conditioning to connect these SoCs to standard USB 2.0 peripherals. Its support for LS, FS, and HS signaling ensures compatibility with a wide range of devices. The device's small package options (DSBGA and VQFN) make it suitable for space-constrained embedded designs, and the compensation settings allow tuning for different PCB layouts.
Recommended
Mobile Devices and Tablets
The TUSB2E22 is ideal for mobile devices and tablets that use eUSB2 to save power and reduce I/O voltage. It enables USB 2.0 connectivity for charging, data transfer, and OTG functions. The device's low-power operation and small footprint are critical for battery-powered devices. The 2:2 crossbar mux supports USB Type-C receptacle flipping, ensuring correct connection regardless of plug orientation. The compensation settings help maintain signal integrity in the tight PCB layouts of mobile devices.
Recommended
Industrial PCs and IoT Gateways
In industrial PCs and IoT gateways, the TUSB2E22 bridges eUSB2 SoCs to USB 2.0 ports for connecting sensors, controllers, and communication modules. Its robust design supports extended temperature ranges (if specified) and reliable operation in harsh environments. The dual repeater allows two independent USB channels, increasing connectivity options. The device's DRD capability enables flexible host/device roles, which is useful in IoT applications where devices may need to act as either a host or a peripheral.
Recommended
Recommended Products Summary
Engineering reference data for TUSB2E22 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TUSB2E22YCGT | TUSB2E22YCGR | TUSB2E22RZAT |
|---|---|---|---|---|
| Package | 25-DSBGA (2x2 mm) / 20-VQFN (3.5x3.5 mm) | 25-DSBGA (2x2 mm) | 25-DSBGA (2x2 mm) | 20-VQFN (3.5x3.5 mm) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 2 | 2 | 2 | 2 |
| USB Compliance | USB 2.0, eUSB2 rev 1.1 | USB 2.0, eUSB2 rev 1.1 | USB 2.0, eUSB2 rev 1.1 | USB 2.0, eUSB2 rev 1.1 |
| Supported Signaling | LS, FS, HS | LS, FS, HS | LS, FS, HS | LS, FS, HS |
| Crossbar Mux | 2:2 | 2:2 | 2:2 | 2:2 |
| Compensation Settings | 4 (EQ0, EQ1) | 4 (EQ0, EQ1) | 4 (EQ0, EQ1) | 4 (EQ0, EQ1) |
| Supply Voltage | 3.3V, 1.8V | 3.3V, 1.8V | 3.3V, 1.8V | 3.3V, 1.8V |
Key Differentiators
- Dual repeater with 2:2 crossbar mux (vs TUSB216)
- eUSB2 level shifting (1.2V to 3.3V) (vs TUSB216)
- Four compensation settings (vs TUSB216)
Design Notes
The TUSB2E22 requires two supply rails: VDD3V3 (3.3V) and VDD1V8 (1.8V). According to the datasheet, there is no power supply sequence requirement between these rails, but the maximum ramp time to reach minimum supply voltages should be 2 ms. Ensure both supplies are properly decoupled with 0.1uF and 1uF capacitors placed close to the pins to minimize noise and ensure stable operation.
For high-speed USB 2.0 signals, maintain controlled impedance (90 ohms differential) for the DP/DM traces. Keep the trace lengths as short as possible and avoid vias to minimize signal degradation. The EQ0 and EQ1 pins allow four compensation settings to optimize signal integrity for different trace lengths and connector losses. Refer to the datasheet layout guidelines for recommended trace routing and grounding.
A common pitfall is incorrect configuration of the EQ0 and EQ1 pins, leading to suboptimal signal quality. Ensure these pins are set according to the system's channel loss profile. Also, the RESETB pin is active low and can be used as a power-down pin; do not leave it floating. Properly terminate unused eUSB2 or USB pins to avoid noise and ensure compliance.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified. REACH compliance assumed based on TI's general compliance.
