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Product Detailed Parameters
- Description：IC SW DPST, SPDTX2 8.4OHM 20VQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：DPST, SPDT
- Multiplexer/Demultiplexer Circuit：1:2, 2:1
- On-State Resistance (Max)：8.4Ohm
- Channel-to-Channel Matching (ΔRon)：500mOhm
- Voltage - Supply, Single (V+)：1.71V ~ 1.98V, 3V ~ 3.6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：100ns, 100ns
- -3db Bandwidth：13GHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：-
- Current - Leakage (IS(off)) (Max)：5µA
- Crosstalk：-27dB @ 10GHz
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：20-VQFN (4.5x2.5)
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The TMUXHS4212IRKST is a high-speed bidirectional passive switch configured as a 2-channel differential 2:1 multiplexer or 1:2 demultiplexer. It supports data rates up to 16 Gbps, accommodating interfaces such as USB 3.2 Gen 2.0 and PCI Express Gen 4.0. The device operates on a single supply voltage of either 1.8 V or 3.3 V, drawing 180 μA in active mode and less than 2 μA in standby. It features adaptive common mode voltage tracking for ranges up to 1.8 V and delivers a −3-dB differential bandwidth of 13 GHz. Packaged in a 2.5 mm × 4.5 mm QFN (RKS), it functions within an industrial temperature range of −40°C to +105°C.
Feature Summary
- Supports USB 3.2 up to 10 Gbps and PCI Express up to 16 Gbps
- Adaptive common mode voltage tracking up to 1.8 V
- Ultra-low power consumption with active and standby modes
- Industrial temperature rating from -40°C to +105°C
Applications
- USB Type-C connector implementations for plug flip accommodation
- PCIe lane switching between slots in PC and server motherboards
- High-speed interface routing including SATA, SAS, and Ethernet
Procurement Notes
Verify the specific ordering suffix 'G4' against the datasheet orderable addendum to confirm package and tape/reel specifications. Ensure the selected variant matches the required operating temperature range and supply voltage configuration for the target application design.
Selection Notes
Select this component when differential signaling requires muxing or demuxing at speeds up to 16 Gbps. Confirm that the system's common mode voltage remains within the 0 to 1.8 V range. Verify that the PCB layout can accommodate the 20-pin VQFN package and provides adequate thermal grounding for the exposed pad.
Part Context
This part belongs to the TMUXHS4212 family of high-speed analog switches. The 'I' designation indicates the industrial temperature grade (-40°C to +105°C). The 'RKSR' identifies the 20-pin VQFN package, while 'T' specifies the reel packaging format. The 'G4' suffix typically denotes lead-free and RoHS compliance details.
Replacement Considerations
Consult the Texas Instruments product selection guide for alternative devices within the TMUXHS series. Verify pin compatibility and electrical characteristics before substituting with other mux/demux ICs.
