Toshiba Electronic Devices & Storage Corporation has launched the TDS5C212MX and TDS5B212MX, new 2:1 multiplexer (Mux) / 1:2 demultiplexer (De-Mux) switches designed for next-generation high-speed interfaces like PCIe 6.0 and USB4 Version 2.0. Volume shipments begin today.

As servers, industrial testers, robots, and PCs continue to evolve, there’s growing demand for reliable switching of ultra-high-speed, wide-bandwidth differential signals in increasingly tight board spaces.
The new switches address this using their proprietary SOI process (TarfSOIâ„¢), delivering industry-leading -3-dB bandwidths of 34GHz (typ.) for the TDS5C212MX and 29GHz (typ.) for the TDS5B212MX. These specs minimize signal distortion and boost reliability for high-speed data transmission.
The 2:1 multiplexer (Mux) / 1:2 demultiplexer (De-Mux) switches work as either 2-input/1-output Mux switches or 1-input/2-output De-Mux switches in applications like PCIe® 6.0 and USB4® Version 2.0. They enable sharing a single high-speed interface across multiple devices or switching paths based on system needs.
Both feature pin layouts optimized for high-frequency performance, with the TDS5C212MX particularly minimizing signal path lengths to cut reflections and losses for better integrity. They also handle operating temperatures from -40°C to 125°C, making them a great fit for industrial use.
The company plans to keep advancing high-performance, reliable analog switches to support the next wave of high-speed interface evolution.
Applications
- Industrial testers, robots
- PCs, servers, mobile devices, wearable devices, etc.
Supported Interfaces
- PCIe® series: PCIe 6.0 / 5.0 / 4.0 / 3.0
- CXLâ„¢ series: CXL 3.0 / 2.0 / 1.0
- USB series: USB4® Version 2.0 / USB4® / USB 3.2 Gen2×1 / Gen1×1
- Thunderboltâ„¢ series: Thunderbolt 5 / 4 / 3 / 2
- DisplayPortâ„¢ 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 | TDS5C212MX | TDS5B212MX | ||||
| Package | Name | XQFN16 | ||||
| Size (mm) | 2.4×1.6 (typ.), t=0.4 (max) | |||||
| Operating ranges
(Ta=-40 to 125°C) |
Supply voltage VCCÂ (V) | 1.6 to 3.6 | ||||
| Signal pins differential voltage
VI/O(Diff)Â (V) |
0 to 1.8 | |||||
| Signal pins common mode voltage
VI/O(Com)Â (V) |
0 to 2.0 | |||||
| DC characteristics
(Ta=-40 to 125°C) |
Current consumption Iope (?A) | 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 | Buy Online | Buy Online | ||||




