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  • MAX3111EEWI+G36

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SPI/MICROWIRE-Compatible UART and ±15kV ESD-Protected RS-232 Transceivers with Internal Capacitors,UART Interface IC IC TXRX RS232 SPI W/CAP

  • Package/Case :
  • SOIC-28
  • Product Categories :
  • UART Interface IC
  • RoHs Status:
  • Rohs
  • In-stock:
  • 348


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MAX3111EEWI+G36 Product Details

The MAX3111EEWI+G36 is a SPI/MICROWIRE compatible UART and ±15kV ESD protected RS232 transceiver with internal capacitors in 28 pin WSOIC package. This device is an integration of RS232 transceiver and UART in a single package with two drivers and two receivers hence reduces cost and board space. A proprietary low dropout output stage enables the 2 driver/2 receiver interface to deliver true RS232 performance down to VCC = +3V while consuming only 0.45mA supply current. The receiver remains active in a hardware/software-invoked shutdown allowing external device to be monitored while consuming only 0.4mA (max) shutdown supply current. UART includes a crystal oscillator and baud-rate generator with software programmable divider ratios for all common baud rates from 300baud to 230kbaud. The UART and RS232 functions can be used together or independently since the two functions share only supply and ground connections. It is used in point of sale (POS) devices and handy terminals.


  • Supply voltage range is 3V to 3.6V
  • Operating temperature range from -40°C to 85°C
  • ESD protection of ±15kV HBM, ±15kV IEC 1000-4-2 air discharge & ±8kV IEC 1000-4-2 contact discharge
  • SPI/QSPI/MICROWIRE compatible µC interface
  • 8word receive FIFO minimizes processor overhead & provides flexible interrupt W/ 4 maskable sources
  • 9bit address-recognition interrupt
  • Two control lines (one input and one output) are included for hardware handshaking
  • Internal charge pump capacitors, no external components required
  • Transmitter skew is 200ns, receiver skew is 100ns & data rate is 250kbps
  • Hardware/software compatible with MAX3100 and MAX3222E

MAX3111EEWI+G36 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Number of Channels
  • 1
  • Data Rate
  • 250 Kbps
  • Supply Voltage Max
  • 3.6 V
  • Supply Voltage Min
  • 3 V
  • Supply Current
  • 0.45 mA
  • Maximum Operating Temperature
  • + 85 C
  • Minimum Operating Temperature
  • - 40 C
  • Package / Case
  • SOIC-28
  • Packaging
  • Tube
  • Description/Function
  • SPI/MICROWIRE-Compatible UART with integrated ESD-protected RS-232 transceiver
  • Mounting Style
  • Operating Supply Voltage
  • 3.3 V
  • Propagation Delay Time ns
  • 150 ns
  • Type
  • SPI/MICROWIRE-Compatible UART with Integrated ESD-Protected RS-232 Transceiver

MAX3111EEWI+G36 Documents

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Estimated Delivery Time: Sep 29 - Oct 04 days (choose Expedited at checkout).

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  • 7-30 days

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  • Hand Fee
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  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
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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 MAX3111EEWI+G36 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 MAX3111EEWI+G36 devices; we pay more attention to the channels and quality of MAX3111EEWI+G36 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of MAX3111EEWI+G36 chips? Including MAXIM original factory information, UART Interface IC application, MAX3111EEWI+G36 pictures?
You can use Jotrin's intelligent search engine, or filter by Audio/Video Routing (Unbuffered) category, or find it through Maxim Integrated Information page.
Q: Are the MAXIM's MAX3111EEWI+G36 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 MAX3111EEWI+G36, 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 MAX3111EEWI+G36?
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 MAX3111EEWI+G36 we delivered, we will accept the replacement or return of the MAX3111EEWI+G36 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 MAX3111EEWI+G36.
(3)The MAX3111EEWI+G36 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 MAX3111EEWI+G36 datasheet pdf, MAX311 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....
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