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Product Detailed Parameters
- Description：IC SWITCH DPDT X 1 8OHM 10UQFN
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：DPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：8Ohm
- Channel-to-Channel Matching (ΔRon)：500mOhm (Typ)
- Voltage - Supply, Single (V+)：3V ~ 3.6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：16µs, 500ns
- -3db Bandwidth：3.3GHz
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：-
- Current - Leakage (IS(off)) (Max)：2µA
- Crosstalk：-32dB @ 240MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-UFQFN
- Supplier Device Package：10-UQFN (1.4x1.8)
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The TMUXHS221NKGR is a high-speed bidirectional 2:1/1:2 multiplexer/demultiplexer optimized for USB 2.0 and eUSB2 signaling. It operates on a 3.3 V supply with 1.8 or 3.3 V control logic inputs. The device supports data rates up to 3 Gbps and features a low channel ON resistance of 3 Ω at VI/O = 0.2 V. It provides a high -3 dB bandwidth of 3.3 GHz, ensuring minimal signal attenuation. Key electrical parameters include an insertion loss of –0.4 dB and return loss of –22 dB at 240 MHz. The component is housed in a compact 10-pin UQFN package measuring 1.4 mm × 1.8 mm.
Feature Summary
- Compatible with USB 2.0 and eUSB2 LS, FS, and HS physical layers
- Supports differential and single-ended CMOS signals up to 3.3 V
- Data pins are 5 V tolerant
- Extended industrial temperature range from -40°C to 125°C
Applications
- PC and notebooks
- Gaming, TV, home theater, and entertainment systems
- Data center and enterprise computing
- Medical applications
- Test and measurements equipment
Procurement Notes
Verify the specific ordering suffix NKGR to confirm the 3000-unit large tape-and-reel packaging configuration. Ensure the procurement documentation explicitly states the NIPDAU lead finish and RoHS compliance status. Confirm that the part marking matches the official datasheet specifications for production-grade units.
Selection Notes
Select this component when designing circuits requiring high-speed switching for USB 2.0 or eUSB2 interfaces. The device is suitable for routing debug signals, PCIe clocks, or USB-C SBU signals. Verify that the system voltage requirements align with the 3.3 V supply and 1.8/3.3 V control logic constraints.
Part Context
This component belongs to the TMUXHS221 family of analog passive switches manufactured by Texas Instruments. It is designed as a pin-to-pin and BoM-to-BoM replacement for similar high-speed mux devices from other manufacturers. The NKG package variant offers a small footprint suitable for space-constrained mobile and portable electronic designs.
Replacement Considerations
Public confirmed substitute part numbers include TMUXHS221NKGT and TMUXHS221NKGR.A. These variants share identical electrical characteristics but differ in reel quantity (250 vs 3000 units). Verify package dimensions and pinout compatibility before substitution.
