Toshiba Releases 2:1 Multiplexer / 1:2 Demultiplexer Switches Supporting High-Speed Differential Signals such as PCIe®6.0 and USB4® Version 2.0
May 7, 2026
Toshiba Electronic Devices & Storage Corporation
KAWASAKI, Japan–Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched "TDS5C212MX" and "TDS5B212MX," 2:1 multiplexer (Mux) / 1:2 demultiplexer (De-Mux) switches that support next-generation high-speed interfaces such as PCIe® 6.0 [1] and USB4® Version 2.0 [2]. Volume shipments of the new products start today.
As servers, industrial testers, robots, and PCs continue to evolve, demand is growing for reliable switching of ultra-high-speed, wide-bandwidth differential signals—such as PCIe® 6.0 and USB4® Version 2.0—within increasingly limited board space. Toshiba’s new products meet this requirement with a proprietary SOI process (TarfSOI™) [3] that achieves an industry-leading [4] –3-dB bandwidth (differential) of 34GHz (typ.) for TDS5C212MX and 29GHz (typ.) for TDS5B212MX. These wide bandwidths significantly suppress signal waveform distortion and help to improve reliability in high-speed data transmission.
The new devices can be used as 2-input/1-output Mux switches or 1-input/2-output De-Mux switches in high-speed differential signal applications, such as PCIe® 6.0 and USB4® Version 2.0. They support sharing of a single high-speed interface among multiple devices and switching signal paths according to system requirements.
Both products feature pin layouts optimized for high-frequency characteristics. In particular, TDS5C212MX minimizes signal path length to reduce reflections and losses, improving high-speed signal integrity. They both support an operating temperature range of -40°C to 125°C, making them suitable for industrial applications.
Toshiba will continue to contribute to next-generation systems by developing high-performance, highly reliable analog switches that support the evolution of high-speed interfaces.
Notes:
[1] A next-generation interface standard defined by PCI-SIG that doubles the data transfer rate to 64 GT/s compared with PCIe® 5.0.
[2] An interface standard defined by USB-IF that supports high-speed data transfer of up to 80 Gbps.
[3] TarfSOI™ (Toshiba advanced RF SOI): TarfSOI™ is an SOI-CMOS (silicon-on-insulator-complementary metal oxide semiconductor) front-end process technology developed by Toshiba for high-frequency semiconductor applications.
[4] As a 2:1 Mux / 1:2 De-Mux switch. Based on Toshiba survey as of May 2026.
Applications
- Industrial testers, robots
- PCs, servers, mobile devices, wearable devices, etc.
Supported Interfaces
- PCIe® series: PCIe 6.0 / 5.0 / 4.0 / 3.0
- CXL™ series: CXL 3.0 / 2.0 / 1.0
- USB series: USB4® Version 2.0 / USB4® / USB 3.2 Gen2×1 / Gen1×1
- Thunderbolt™ series: Thunderbolt 5 / 4 / 3 / 2
- DisplayPort™ series: DisplayPort 2.0 / 1.4 / 1.3 / 1.2
Features
- High –3-dB bandwidth (differential) supporting high-speed differential signals such as PCIe® 6.0 and USB4® Version 2.0
TDS5C212MX: 34GHz (typ.)
TDS5B212MX: 29GHz (typ.) - Wide operating temperature range: -40°C to 125°C
Main Specifications
| Part number | ||||||
|---|---|---|---|---|---|---|
| Package | Name | XQFN16 | ||||
| Size (mm) | 2.4×1.6 (typ.), t=0.4 (max) | |||||
| Operating ranges (Ta=-40 to 125°C) |
Supply voltage VCC (V) | 1.6 to 3.6 | ||||
| Signal pins differential voltage VI/O(Diff) (V) | 0 to 1.8 | |||||
| Signal pins common mode voltage VI/O(Com) (V) | 0 to 2.0 | |||||
| DC characteristics (Ta=-40 to 125°C) |
Current consumption Iope (μA) | VS = 0V | Typ. | 70 | ||
| High frequency characteristics (Ta=25°C) |
–3-dB Bandwidth (differential) BW(Diff) (GHz) | Typ. | 34 | 29 | ||
| Differential insertion loss DDIL (dB) |
f=5.0GHz | Typ. | -0.7 | -0.7 | ||
| f=8.0GHz | -0.8 | -0.8 | ||||
| f=10.0GHz | -0.9 | -0.9 | ||||
| f=12.8GHz | -1.1 | -1.1 | ||||
| f=16.0GHz | -1.2 | -1.2 | ||||
| Differential return loss DDRL (dB) |
f=5.0GHz | Typ. | -21 | -20 | ||
| f=8.0GHz | -24 | -20 | ||||
| f=10.0GHz | -21 | -19 | ||||
| f=12.8GHz | -20 | -20 | ||||
| f=16.0GHz | -14 | -15 | ||||
| Differential OFF isolation DDOIRR (dB) |
f=5.0GHz | Typ. | -33 | -36 | ||
| f=8.0GHz | -27 | -29 | ||||
| f=10.0GHz | -25 | -26 | ||||
| f=12.8GHz | -24 | -26 | ||||
| f=16.0GHz | -24 | -27 | ||||
| Differential Crosstalk DDXT (dB) |
f=5.0GHz | Typ. | -41 | -41 | ||
| f=8.0GHz | -37 | -37 | ||||
| f=10.0GHz | -35 | -35 | ||||
| f=12.8GHz | -33 | -33 | ||||
| f=16.0GHz | -31 | -31 | ||||
| Sample Check & Availability |
|
|
||||
Follow the links below for more on the new products.
TDS5C212MX
TDS5B212MX
Follow the link below for more on Toshiba’s General Purpose Logic ICs.
General Purpose Logic ICs
To check availability of the new products at online distributors, visit:
TDS5C212MX
TDS5B212MX
Customer Inquiries:
Analog Device Sales & Marketing Dept.
Tel: +81-44-548-2219
* USB4® is a registered trademark of USB Implementers Forum.
* Thunderbolt™ is a trademark of Intel Corporation or its subsidiaries.
* DisplayPort™ is a trademark owned by the Video Electronics Standards Association (VESA®) in the United States and other countries.
* PCIe® is a registered trademark of PCI-SIG.
* TarfSOI™ is a trademark of Toshiba Electronic Devices & Storage Corporation.
* Other company names, product names, and service names may be trademarks of their respective companies.
* Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.