Products > Integrated Circuits (ICs) > Embedded Processors & Controllers > AT80C51RD2-3CSUM
  • AT80C51RD2-3CSUM

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High Performance 8-bit Microcontroller,Microcontrollers (MCU) MCU 8-BIT AT80 CISC ROMless 3-5V

  • Package/Case :
  • PDIP-40
  • Product Categories :
  • 8-bit Microcontrollers - MCU
  • RoHs Status:
  • Rohs
  • In-stock:
  • 5460


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AT80C51RD2-3CSUM Product Details

High-performance version of the 80C51 8-bit microcontrollers that retains all features of the 80C52 adn adds programmable counter array, 1024 bytes of XRAM, hardware watchdog timer, keyboard interface, versatile serial channel that facilitates multiprocessor communication (EUART), and a speed improvement mechanism (X2 mode).
The device has two software-selectable modes of reduced activity and an 8-bit clock prescaler to further reduce power consumption. In idle mode, the CPU is frozen while the peripherals and the interrupt system operate. In the power-down mode, the RAM is saved and all other functions are inoperative.



  • 60MHz Maximum operating frequency
  • 2.7 to 5.5V Operating voltage

Technical Parameters

  • Core
  • 8051
  • Data Bus Width
  • 8 bit
  • Maximum Clock Frequency
  • 60 MHz
  • Data RAM Size
  • 1280 B
  • On Chip ADC
  • No
  • Operating Supply Voltage
  • 2.7 V to 5.5 V
  • Maximum Operating Temperature
  • + 70 C
  • Package / Case
  • PDIL-40
  • Mounting Style
  • Through Hole
  • Interface Type
  • Minimum Operating Temperature
  • 0 C
  • Number of Programmable I/Os
  • 32
  • Number of Timers
  • 3
  • Processor Series
  • AT80x
  • Program Memory Type
  • ROMLess
  • Factory Pack Quantity
  • 216
  • Supply Voltage Max
  • 5.5 V
  • Supply Voltage Min
  • 2.7 V

AT80C51RD2-3CSUM Documents

  • AT80C51RD2 Technical Documentation of Application Note
  • AT80C51RD2 Technical Documentation of Application Note

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Estimated Delivery Time: Dec 07 - Dec 12 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 AT80C51RD2-3CSUM is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their AT80C51RD2-3CSUM devices; we pay more attention to the channels and quality of AT80C51RD2-3CSUM products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of AT80C51RD2-3CSUM chips? Including MICROCHIP original factory information, 8-bit Microcontrollers - MCU application, AT80C51RD2-3CSUM pictures?
You can use Jotrin's intelligent search engine, or filter by 8051 MCU Products category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's AT80C51RD2-3CSUM price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for AT80C51RD2-3CSUM, 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 AT80C51RD2-3CSUM?
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 AT80C51RD23CSUM we delivered, we will accept the replacement or return of the AT80C51RD2-3CSUM 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 AT80C51RD2-3CSUM.
(3)The AT80C51RD2-3CSUM 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 AT80C51RD2-3CSUM datasheet pdf, AT80C51RD2 pin diagram?
Need any After-Sales service, please feel free contact us:

Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
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