https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/<p style="display:none;">blank</p>en-USTelligent Community 13https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654434/ts3a27518e-ts3a27518ertwr-impedance-confirmation/6379873Thu, 11 Jun 2026 18:59:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:56466179-dde9-463f-8659-4669fc2d6733Katy WestHi Min, Because the suspected unit and known-good unit have measurements similar to each other and both work when the board it powered up, I do not have any concerns, so would not recommend FA. There can be lot-to-lot variations which likely what this is. If there are any further issues, please reach back out. Best, Katyhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653884/ts3usb221a-ts3usb221a-usb-mux/6379445Thu, 11 Jun 2026 14:32:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:af7a0441-e975-4b90-9c74-f1cf6f2379abEdgardo TorresHi Katy, Thanks for confirming — that makes sense on the propagation delay. For our application, we’re currently considering using the TS3USB221A together with the TI TUSB4041I USB hub as part of a USB 2.0 distribution board. With this in mind, could you advise on any key considerations when using the mux in front of (or alongside) the hub? In particular, we’re interested in: Any concerns with placing the mux upstream vs downstream of the hub Impact of the mux on USB enumeration or hub stability Routing or layout practices specific to mux + hub integration Recommended limits (if any) on trace length, connectors, or total channel budget when both devices are used together Whether a re-driver is typically needed in this kind of architecture We are targeting operation across a wider temperature range with multiple interconnects, so we want to make sure we’re accounting for any system-level risks early in the design. Any temp graded version of this as well? Appreciate your guidance on this. Best regards, Edgardohttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653952/tmuxhs221f-detection-of-charge-by-bq25629-and-sd-card-access/6379443Thu, 11 Jun 2026 14:30:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:9f73930f-bd8a-46b0-a0ce-57007900369dKaty WestHi Anushka, No concerns from my end with the block diagram you provided, as long as the signals stay within datasheet abs max! Best, Katyhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654513/tmux1204-request-for-see-radiation-test-data-tmux1204dqar/6379440Thu, 11 Jun 2026 14:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:df2f36de-575c-45c9-bcc2-4bc80de9c88fKaty WestHi Corrado, We do not perform radiation testing on our general purpose portfolio. If you would like to see our offerings of space rated multiplexers, please look for the -SEP suffix on our mux selection table ! Best, Katyhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654319/tmux6119-tmux6119-voltage-drop-issue/6379439Thu, 11 Jun 2026 14:26:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b3f458b1-ebf4-4316-9846-69911718ea91Katy WestHi Jason, Closing this because it is a duplicate post. Our team will get to you today! Best, Katyhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653884/ts3usb221a-ts3usb221a-usb-mux/6379436Thu, 11 Jun 2026 14:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:85c90f3c-51c4-4a49-948e-51e119257057Katy WestHi Edgardo, Yes that was a typo - I meant ns As far as the mux is concerned, it should not add any signal integrity issues, as it is a passive mux. Meaning it kind of acts as just a resistor when it is on. However, for your overall system/ application, long cables are not preferred as you probably know, so you may need some sort of re-driver if the signal isn&#39;t strong enough. I would reach out to the re-driver team if that&#39;s the case. Otherwise, guarding signals is useful to maintaining signal integrity, as well as keeping power components away from signal chain components. Best, Katyhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653884/ts3usb221a-ts3usb221a-usb-mux/6379383Thu, 11 Jun 2026 13:49:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b238ab63-9acd-424d-a443-e4359b4695e1Edgardo TorresHi Katy, Thank you for the detailed response, this is very helpful. I just wanted to clarify one point regarding the propagation delay. You mentioned a typical value of 0.25s — I assume this is 0.25 ns and just a typo. For context on our application, this will be used in a USB 2.0 signal routing setup on a test distribution board operating across a wide temperature range (including elevated temperatures). We may also have longer interconnects and external connectors in the signal path, so signal integrity in a non-ideal channel is a key consideration. Given this, do you have any additional recommendations on: Using the device with longer cables or multiple interconnects Layout or termination considerations beyond the standard guidelines Any risks to USB enumeration or link stability during switching events Appreciate your support on this. Best regards, Edgardohttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654435/cd4067b-any-tr-tf-limitation-for-control-input-pins-2/6379154Thu, 11 Jun 2026 10:40:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:a1de7598-cb0d-4837-99d5-d4aab8b19609Clemens LadischModern CMOS devices could be damaged if the input voltage is held exactly at the switching threshold (where the resulting internal control signal can oscillate) for some time. But CD4000 devices are old and slow, and the input signal does not stay at the threshold, so there is no danger.https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654513/tmux1204-request-for-see-radiation-test-data-tmux1204dqarThu, 11 Jun 2026 10:18:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8ebc5552-ceeb-47f1-9188-6f65c7fdaf41Corrado AltomarePart Number: TMUX1204 Dear Texas Instruments Support Team, I am currently performing a Radiation Hardness Assurance (RHA) analysis for a space project and we are considering the use of the TMUX1204DQAR analog multiplexer. I would like to ask whether any radiation characterization data are available for this device, with particular interest in Single Event Effects (SEE), including but not limited to: Single Event Latch-up (SEL) Single Event Upset (SEU) Single Event Functional Interrupt (SEFI) Single Event Transient (SET) If available, could you please provide: SEE test reports Radiation qualification data Application notes or technical documentation related to radiation performance Any information regarding heavy-ion or proton irradiation testing would be greatly appreciated. Thank you for your support and assistance. Best regards, Corrado Altomare Radiation Hardness Assurance Engineer IMT S.r.l.TMUX1204https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654435/cd4067b-any-tr-tf-limitation-for-control-input-pins-2Thu, 11 Jun 2026 07:12:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:717bc027-325a-41a1-970b-1491177e0f0aKazuhiko HiranoPart Number: CD4067B Clemens, Related to the following E2E thread, my customer has a further question. CD4067B: Any tr/tf limitation for control input PINs? - Switches &amp; multiplexers forum - Switches &amp; multiplexers - TI E2E support forums They will use the CR filter, C=0.1uF and R=75Kohms. They do not care of any glitches at the outputs. But they would like to know if CD4067B could be damaged or not. Please let them know if CD4067B could be damaged with slow tr/tf control signals. Best regards, K.HiranoCD4067Bhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654434/ts3a27518e-ts3a27518ertwr-impedance-confirmationThu, 11 Jun 2026 07:10:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:6a52802b-67a8-4977-9f27-e162da3c3586Min Hisen KaoPart Number: TS3A27518E Dear Support Team, We are currently utilizing the &quot;TS3A27518ERTWR&quot; in our project and have recently observed an issue with lower-than-expected impedance during ICT testing. We would appreciate your insights on this matter. Under unpowered conditions on the PCBA, the typical &quot;NC2 to GND&quot; impedance we observe is approximately 150K ohms, whereas the failing units exhibit around 110K ohms. To isolate the root cause, we removed the suspected IC from the PCBA and measured it individually; the &quot;NC2 to GND&quot; impedance recorded was 140K ohms. For comparison, a known-good IC removed from a passing board measured 145K ohms. Although functional tests via ICT pass successfully once the board is powered up, we remain concerned about potential reliability risks or latent defects associated with these lower-impedance units. Could you please help evaluate these findings and advise whether proceeding with a formal &quot;Failure Analysis (FA)&quot; is recommended?TS3A27518EData center &amp; enterprise computinghttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653952/tmuxhs221f-detection-of-charge-by-bq25629-and-sd-card-access/6378808Thu, 11 Jun 2026 06:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:91083a73-1c04-478d-bcee-46addf0b158fAnushka PalawatWe would like to ggo with this. Is this okay?https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1654319/tmux6119-tmux6119-voltage-drop-issueThu, 11 Jun 2026 02:10:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b04f0b80-32d8-4937-86ea-cab69fff7b0bJason WeiPart Number: TMUX6119 I have voltage drop issue with TMUX6119, Could you please kindly help to check schematic if have any suggest modifications to the circuit? Question:Input 12~15V voltage to output only 7.6~8V? WN213_N101_20260608.pdfTMUX6119Wireless Infrastructurehttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653952/tmuxhs221f-detection-of-charge-by-bq25629-and-sd-card-access/6378256Wed, 10 Jun 2026 21:24:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:12d15dc0-7b71-4df5-9eb6-f788cbe831b3Katy WestHi Anushka, Could you provide a block diagram for both options? From the mux perspective, all that really matters is that the input/output signals are within datasheet spec. This switch is controlled by GPIO, so as long as the system can control the mux this way, it should work. Best, Katyhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653884/ts3usb221a-ts3usb221a-usb-mux/6378185Wed, 10 Jun 2026 20:26:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c35842c9-58e5-4a14-a58f-4c7d9e5ba25cKaty WestHi Edgardo, The TS3USB221A is designed for high-speed environments, so should not have any issues for use in USB 2.0 applications. We characterize our devices across the operating temperatures listed in the datasheet, so performance is guaranteed within the DS operating temperatures, even if consistently at the upper end. You can find more information on operating life and temperature stresses on our qualification &amp; reliability summary here . There are not particular sequencing requirements, but it is always best practice to power the mux before putting a signal on the in/out pins. Because this is a passive mux, there are no timing requirements. You can find information on the timing/switching characteristics in section 5.8 of the datasheet - most pertinent to your inquiry would be the propagation delay, which is 0.25s as well as line enable and disable time. Crosstalk, bandwidth, and off isolation specs are found in section 5.6 of the datasheet. It is important to note that the S and OE pins stay in a known state to ensure that the switch stays in a known state - PU/PD resistors can be useful in this case. If S and OE are left floating, you will only be able to tell the state by probing the S/OE pins, and it may result in unwanted signals on the input and/ or output pins. Generally, external ESD is not necessary, but may be useful depending on your application. You can find best practices for high-speed layout design here - High-Speed Layout Guidelines for Signal Conditioners and USB Hubs (Rev. A) What kind of &quot;non-ideal&quot; environment is your application? That may help to give further suggestions. Best, Katyhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653952/tmuxhs221f-detection-of-charge-by-bq25629-and-sd-card-accessWed, 10 Jun 2026 06:54:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:47953bcb-e0de-49fb-b3e9-fa4445cce844Anushka PalawatPart Number: TMUXHS221F Other Parts Discussed in Thread: BQ25629 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1652464/bq25629-usb-data-lines-to-bq/6375389 We would like to used the USB-c to access the sd card on our board and also communicate with BQ25629 for charge indication. Can we do as option 1 1. Keep data lines connected to processor always through mux. 2. Processor detects whether a laptop is connected or not 3. If laptop is connected then it programs current to 0.5A 4. If laptop is not connected, then Processor switches the mux to BQ 5. Processor triggers FORCE_INDET in BQ and it checks current capability by itself or option 2 USB-C D+ D− Processor USB only USB-C VBUS BQ25629 VBUS USB-C CC1 CC2 5.1kohm Rd to GND BQ25629 D+ D− not used or test pads Then set input current by firmware over I2C On VBUS detect 1. processor reads BQ25629 status 2. processor sets IINDPM and input current limit to be 1000 mA 3. processor enables charging or there is other better way to do this?TMUXHS221FBQ25629Wearables (non-medical)https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653884/ts3usb221a-ts3usb221a-usb-muxWed, 10 Jun 2026 03:34:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7019fbc2-21e8-4a39-b7ed-08d2001f82cfEdgardo TorresPart Number: TS3USB221A Other Parts Discussed in Thread: TUSB4041I We are currently evaluating the TS3USB221A for use in a USB 2.0 signal routing application operating under demanding electrical and environmental conditions, and we would like to better understand its suitability in such scenarios. In particular, we are interested in its performance at elevated ambient temperatures, including the differences between the standard version (–40 &#176;C to 85 &#176;C) and the automotive-grade TS3USB221A‑Q1 (–40 &#176;C to 125 &#176;C), along with any available data on on-resistance variation, bandwidth degradation, or long-term reliability at higher temperatures. We would also appreciate guidance on the device’s signal integrity performance in non-ideal channel conditions, including insertion loss, impedance discontinuities, and tolerance to additional interconnects, as well as recommended layout practices to maintain high-speed USB compliance. Additionally, we would like to understand the behavior of the device during switching events, including any transient disturbances, potential impact on USB enumeration or link stability, and any required timing or sequencing considerations. In particular, we would like clarification on the behavior of the select (S) and enable (OE) pins, including any requirements on control signal timing, possible glitches during switching, default states, and whether improper sequencing may lead to signal corruption or disconnection events. From a system perspective, we are interested in its sensitivity to supply noise, grounding practices, and the need for external ESD or signal conditioning components. Further, we would like clarification on channel isolation, crosstalk performance, and typical failure modes observed when operating near device or channel limits. Finally, given these considerations, we would appreciate your assessment of the key risks associated with using this device in a high-speed, non-ideal environment and any recommendations for design precautions or alternative devices that may offer improved robustness.TUSB4041ITUSB4020BITS3USB221Ahttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1653369/lmr50410evm-question-on-jp1-configuration-and-5v-output-lmr50410evm/6376446Tue, 09 Jun 2026 20:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0f08e0dc-f4d3-4058-9714-5386d5116700Hardit SinghHello Takashi, You can change the output voltage setpoint with the board you have by adjusting the values of resistors R4 and R5, and your understanding is correct that the 3pin jumper is only for the enable control. The following equation can be used to set R4 and R5: Regards, Hardit Singhhttps://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1650359/tmux7213-update-on-high-capacitive-load-analog-switching-power-issue/6376280Tue, 09 Jun 2026 18:38:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:33c064a4-9e63-492d-aabc-266a89d42e75Brian McKeeThank you.https://e2e.ti.com/support/switches-multiplexers-group/switches-multiplexers/f/switches-multiplexers-forum/1650359/tmux7213-update-on-high-capacitive-load-analog-switching-power-issue/6376246Tue, 09 Jun 2026 18:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d6c1aefc-a768-450c-a417-f8a96149670fKaty WestHi Brian, This is ok because it is such a short pulse. Best, Katy