MA803AS2 Product Details
MA803AS2 is a 80C51-based high-performance 1-T structure of single-chip microprocessors, each instruction requires 1 to 7 clock signals (8051 than the standard fast 6 to 7 times), compatible with the 8051 instruction set. So in the standard 8051 has the same processing capacity of the case, MA803 only need very low operating speed, and thus can greatly reduce the power consumption.
The MA803 has 15.5K bytes of built-in flash memory for code and data. Flash memory can be programmed in-system (ISP). At the same time, it also provides in-application programming (IAP) capabilities. ISP allows users to download new code without removing the microcontroller from the product; IAP means that the microcontroller can write non-volatile data in Flash while the application is running. These functions are programmed by the built-in charge pump to provide high voltage.
MA803AS2 retains the basic features of the standard 80C52: 512 bytes of random access memory, 23 I / O ports, two external interrupts, and two timer / counters. A PCA timer, an SPI interface, a one-time-enabled watchdog WDT, a 10-bit ADC, a low-level reconnaissance LVD, an enhanced multiprocessor communication and improved speed universal string Line port (EUART).
The MA803 has two power-saving modes to reduce power consumption. In Idle mode, the CPU is frozen and the peripheral module and interrupt system remain active. In Power-down mode, the contents of RAM and Special Function Registers (SFRs) are saved and all other functions are terminated. Most importantly, the microcontroller in power-down mode can be woken up by an external interrupt.
Technical Parameters
- Manufacturer
- MEGAWIN
- Packing
- Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
- RoHs Status
- Lead free / RoHS Compliant
- Package/Case
- 28-SOP
MA803AS2 Related Products
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- Shipping:
Shipping & Payment
Shipping
- Shipping Type
- Ship Fee
- Lead Time
- DHL
- $20.00-$40.00 (0.50 KG)
- 2-5 days
- Fedex
- $20.00-$40.00 (0.50 KG)
- 3-7 days
- UPS
- $20.00-$45.00 (0.50 KG)
- 2-5 days
- TNT
- $25.00-$65.00 (0.50 KG)
- 2-5 days
- EMS
- $25.00-$45.00 (0.50 KG)
- 5-14 days
- REGISTERED AIR MAIL
- $2.00-$3.00 (0.10 KG)
- 7-30 days
Processing Time:Shipping fee depend on different zone and country.
Payment
- Terms of payment
- Hand Fee
- Wire Transfer
- charge US$30.00 banking fee.
- Paypal
- charge 4.0% service fee.
- Credit Card
- charge 3.5% service fee.
- Western Union
- charge US$0.00 banking fee.
- Money Gram
- charge US$0.00 banking fee.
We provide high quality products, thoughtful service and after sale guarantee
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We have rich products, can meet your various needs.
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Minimum order quantity starts from 1pcs.
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Lowest international shipping fee starts from US$2.00.
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90 days quality guarantee for all products.
Packing
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Step1: Products
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Step2: Vacuum Packaging
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Step3: Anti-Static Bag
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Step4: Individual Packaging
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Step5: Packaging Boxes
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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.

Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
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.
FAQ:
- Q: How does Jotrin guarantee that MA803AS2 is the original manufacturer or agent of MEGAWIN?
- We have a professional business development department to strictly test and verify the qualifications of MEGAWIN original manufacturers and agents. All MEGAWIN suppliers must pass the qualification review before they can publish their MA803AS2 devices; we pay more attention to the channels and quality of MA803AS2 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of MA803AS2 chips? Including MEGAWIN original factory information, MIC application, MA803AS2 pictures?
- You can use Jotrin's intelligent search engine, or filter by MIC category, or find it through MEGAWIN brand manufacturer page.
- Q: Are the MEGAWIN's MA803AS2 price and stock displayed on the platform accurate?
- The MEGAWIN's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for MA803AS2, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
- Q: Can I place an order offline?
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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?
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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 MA803AS2?
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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 MA803AS2 we delivered, we will accept the replacement or return of the MA803AS2 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 MA803AS2.
(3)The MA803AS2 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 MA803AS2 datasheet pdf, MA803AS2 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com