Products > Integrated Circuits (ICs) > Interface ICs > FSA644UCX
  • FSA644UCX

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Analogue Switch, 10 Channels, SPDT, 6 ohm, 1.65V to 4.5V, WLCSP, 36 Pins

  • Package/Case :
  • WLCSP-36
  • Product Categories :
  • Multiplexer Switch ICs
  • RoHs Status:
  • Green
  • In-stock:
  • 2881


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FSA644UCX Product Details

The FSA644UCX is a four-data–lane, MIPI, D-PHY switch. This single-pole, double-throw (SPDT) switch is optimized for switching between two high-speed or low-power MIPI sources. The FSA644UCX is designed for the MIPI specification and allows connection to a CSI or DSI module. The FSA644UCX features an extremely low on capacitance (CON) of 2.7 pF.


  • Switch Type: SPDT (10x)
  • Signal Types: MIPI, D-PHY
  • VCC: 1.65 to 4.5 V
  • Input Signals: 0 to VCC
  • RON: 6 Ω Typical HS MIPI
  • 8 Ω Typical LP MIPI
  • ∆RON: 0.6 Ω Typical HS & LP MIPI
  • RON_FLAT: 0.3 Ω Typical
  • ICCZ: 0.5 µA Maximum
  • ICC: 32 µA Maximum
  • OIRR: -40 dB Typical
  • XTALK: -25 dB Typical
  • Bandwidth: 750 MHz Minimum
  • Channel-to-Channel Skew: 6 ps Typical
  • Operating Temperature: -40 to +85°C
  • CON: 2.7 pF
  • Package: 36-Ball WLCSP


  • Media Tablets
  • Storage & Peripherals
  • Mobile Handsets
  • Wireless LAN Card & Broadband Access
  • PMP/MP3 Players

Technical Parameters

  • Number of Channels
  • 4
  • Number of Switches
  • 10
  • On Resistance (Max)
  • 12 Ohms
  • On Time (Max)
  • 125 ns
  • Off Time (Max)
  • 325 ns
  • Operating Supply Voltage
  • 1.65 V to 4.5 V
  • Operating Supply Current
  • 32 uA
  • Maximum Operating Temperature
  • + 85 C
  • Mounting Style
  • Package / Case
  • WLCSP-36
  • Bandwidth
  • 1.6 GHz
  • Crosstalk
  • - 25 dB
  • Minimum Operating Temperature
  • - 40 C
  • Off Isolation (Typ)
  • - 18 dB
  • Packaging
  • Reel
  • Switch Configuration
  • SPDT

FSA644UCX Documents

FSA644UCX Related Products

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  • **avid***

    Alles bestens, sehr schneller Versand, vielen Dank!

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Estimated Delivery Time: Jun 28 - Jul 03 days (choose Expedited at checkout).

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  • Lead Time
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  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that FSA644UCX is the original manufacturer or agent of ON?
We have a professional business development department to strictly test and verify the qualifications of ON original manufacturers and agents. All ON suppliers must pass the qualification review before they can publish their FSA644UCX devices; we pay more attention to the channels and quality of FSA644UCX products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of FSA644UCX chips? Including ON original factory information, Multiplexer Switch ICs application, FSA644UCX pictures?
You can use Jotrin's intelligent search engine, or filter by Interfaces ; Analog Switches category, or find it through ON Semiconductor, LLC Information page.
Q: Are the ON's FSA644UCX price and stock displayed on the platform accurate?
The ON's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for FSA644UCX, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of FSA644UCX?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the FSA644UCX we delivered, we will accept the replacement or return of the FSA644UCX only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of FSA644UCX.
(3)The FSA644UCX is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as FSA644UCX datasheet pdf, FSA644 pin diagram?
Need any After-Sales service, please feel free contact us:

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