Products > Integrated Circuits (ICs) > MAX31855KASA
  • MAX31855KASA

Images are for reference only.


Hot Sale

Cold-Junction Compensated Thermocouple-to-Digital Converter

  • Package/Case :
  • SOIC-8
  • Product Categories :
  • RS-232 Line Driver/Receivers
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 8000


Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

MAX31855KASA Product Details

The MAX31855KASA is a complete DTE RS-232 serial port designed to meet the stringent ESD requirements of the European community. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model. The MAX31855KASA has three RS-232 transmitters, five RS-232 receivers, and no charge pump, optimizing it for operation in desktop PC and motherboard applications. It is guaranteed to run at data rates up to 230kbps, providing compatibility with popular software for communicating with personal computers. Power-supply current is less than 300μA for IDD and ISS, and less than 1mA for ICC. The MAX31855KASA is pin and functionally compatible with the industry-standard 75185, so existing designs can instantly become EMC compliant. The MAX31855KASA is available in an SO package and in the tiny SSOP that further reduces board space.


  • Enhanced ESD Protection:
    • ±15kV—Human Body Model
    • ±8kV—IEC 1000-4-2, Contact Discharge
    • ±15kV—IEC 1000-4-2, Air-Gap Discharge
  • Latchup Free During an ESD Event
  • 20-Pin SSOP and SO Packages
  • Guaranteed 230kbps Data Rate
  • Flow-Through Pinout
  • Pin Compatible with SN75C185
  • Complete DTE Serial Port


  • Computers: Desktop, Workstation, Server
  • Equipment Meeting IEC 1000-4-2
  • Instruments
  • Motherboards

MAX31855KASA Block Diagram
(Picture: Diagram)

Technical Parameters

  • Vsupply (V)
  • 5 ,12
  • Vsupply (Dual) (Dual) (\u00b1V)
  • -
  • Tx
  • 3
  • Rx
  • 5
  • Data Rate (min) (kbps)
  • 230
  • Icc (typ) (mA)
  • 0.38
  • Internal Charge Pump
  • No
  • Ext. Caps
  • 0
  • Cap. Value (nom) (\u03bcF)
  • -
  • ESD Protect. (\u00b1kV)
  • 15
  • Isolation (\u00b1kV)
  • -
  • Rx Active in Shutdn
  • -
  • Features
  • -
  • RoHS Available
  • Yes
  • Industry Qualified
  • -
  • Oper. Temp. (\u00b0C)
  • -40 to +85 ,0 to +70
  • Package/Pins
  • SOIC (W)/20 ,SSOP/20
  • Smallest Available Pckg. (max w/pins) (mm2)
  • 57.9
  • Budgetary Price (See Notes)
  • $2.21 @1k

MAX31855KASA Documents

MAX31855KASA Related Products

Ratings and Reviews

  • 0 / 5
  • 5 Stars 0%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: May 17 - May 22 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $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 MAX31855KASA is the original manufacturer or agent of MAXIM?
We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their MAX31855KASA devices; we pay more attention to the channels and quality of MAX31855KASA products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of MAX31855KASA chips? Including MAXIM original factory information, RS-232 Line Driver/Receivers application, MAX31855KASA pictures?
You can use Jotrin's intelligent search engine, or filter by RS-232 Line Driver/Receivers category, or find it through Maxim Integrated Information page.
Q: Are the MAXIM's MAX31855KASA price and stock displayed on the platform accurate?
The MAXIM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for MAX31855KASA, 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 MAX31855KASA?
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 MAX31855KASA we delivered, we will accept the replacement or return of the MAX31855KASA 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 MAX31855KASA.
(3)The MAX31855KASA 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 MAX31855KASA datasheet pdf, MAX3185 pin diagram?
Need any After-Sales service, please feel free contact us:

Maxim Integrated

Maxim Integrated Products is a global range of linearity, mixed-signal integrated circuits (IC) design, R & D and manufacturing leader, has designed, developed, and manufactured analog, mixed-signal, high-frequency, and digital circuits that enable all four of these key interactions....
  • MAX3161EAG+
    MAX3161EAG+ +3.0V to +5.5V, 1μA, RS-232/RS-485/422 Multiprotocol Transceivers,RS-4...
  • MAX3162EAI+
    MAX3162EAI+ +3.0V to +5.5V, 1μA, RS-232/RS-485/422 Multiprotocol Transceivers,RS-2...
  • MAX31760AEE+
    MAX31760AEE+ Motor / Motion / Ignition Controllers & Drivers Fan Speed Controller w...
  • MAX31785ETL+
    MAX31785ETL+ Motor / Motion / Ignition Controllers & Drivers 6Ch Intelligent Fan Co...
  • MAX31785ETL+T
    MAX31785ETL+T Motor / Motion / Ignition Controllers & Drivers 6Ch Intelligent Fan Co...
  • MAX31790ATI+
    MAX31790ATI+ Motor / Motion / Ignition Controllers & Drivers 6Ch Intelligent Fan Co...

Certificates & Honor

Certificates & Honor