Products > Integrated Circuits (ICs) > Embedded Processors & Controllers > AT89S8253-24AU

Images are for reference only.


Hot Sale

8 Bit MCU, 8051 Family AT89S8253 Series Microcontrollers, 24 MHz, 12 KB, 256 Byte, 44 Pins, TQFP

Manufacturer : Microchip Technology, Inc
Package/Case : TQFP-44
Product Categories : 8-bit Microcontrollers - MCU
Datasheet: AT89S8253-24AU Datasheet (PDF)
RoHs Status: Lead free / RoHS Compliant
In-stock: 2000


Request for Quotation

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

AT89S8253-24AU Product Details

Low-power, high-performance, CMOS 8-bit microcontroller with 12KB of ISP flash program memory and 2KB of EEPROM data memory. The device is manufactured using Atmel high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51® instruction set and pinout. On-chip downloadable flash allows the program memory to be reprogrammed in-system through an SPI serial interface or by a conventional nonvolatile memory programmer. This versatile 8-bit CPU with downloadable flash provides a highly-flexible and cost-effective solution for many embedded control applications.



  • Compatible with MCS®-51 products
  • 12kB of In-System Programmable (ISP) flash program memory
  • 2kB EEPROM data memory
  • 64-byte User signature array
  • Three-level program memory lock
  • 256 x 8-bit Internal RAM
  • 32 Programmable I/O lines
  • Three 16-bit timers/counters
  • Nine interrupt sources
  • Enhanced UART serial port with framing error detection and automatic address recognition
  • Enhanced SPI (double write/read buffered) serial interface
  • Low-power idle and power-down modes
  • Interrupt recovery from power-down mode
  • Programmable watchdog timer
  • Dual data pointer
  • Power-off flag
  • Flexible ISP programming (byte and page mode)
  • Four-level enhanced interrupt controller
  • Programmable and fuse-able x2 clock option
  • Internal power-on reset

AT89S8253-24AU Products

Technical Parameters

  • Core
  • 8051
  • Data Bus Width
  • 8 bit
  • Maximum Clock Frequency
  • 24 MHz
  • Program Memory Size
  • 12 KB
  • Data RAM Size
  • 256 B
  • On Chip ADC
  • No
  • Operating Supply Voltage
  • 2.7 V to 5.5 V
  • Maximum Operating Temperature
  • + 85 C
  • Package / Case
  • TQFP
  • Mounting Style
  • Interface Type
  • Minimum Operating Temperature
  • - 40 C
  • Number of Programmable I/Os
  • 32
  • Number of Timers
  • 3
  • Processor Series
  • AT89x
  • Program Memory Type
  • Flash
  • Factory Pack Quantity
  • 160
  • Supply Voltage Max
  • 5.5 V
  • Supply Voltage Min
  • 2.7 V

AT89S8253-24AU Datasheet

  • AT89S8253 Technical Documentation of Application Note
  • AT89S8253 Technical Documentation of Application Note
  • AT89S8253 Technical Documentation of Application Note
  • AT89S8253 Technical Documentation of Application Note
  • AT89S8253 Technical Documentation of Application Note

AT89S8253-24AU Equivalent Parts

For the AT89S8253-24AU component, you may consider these replacement and alternative parts.

Models Manufacturer Package/Case Description
AT89S8253-24PI MICROCHIP PDIP-40 8-bit Microcontroller with 12K Bytes Flash and 2K Bytes EEPROM,Microcontrollers (MCU) UNSAWN WAFER 20 MIL BACKGRIND - 24MHZ
AT89S8253-24PU MICROCHIP PDIP-40 8-bit Microcontroller with 12K Bytes Flash and 2K Bytes EEPROM,Microcontrollers (MCU) 12kB Flash 256B RAM 2.7V-5.5V
AT89S8252-24PU ATMEL DIP-40 8-bit Microcontroller with 8K Bytes Flash

AT89S8253-24AU Related Products

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • **had ***

    It's perfect thank you very much

  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Jun 19 - Jun 24 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.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.


Q: How does Jotrin guarantee that AT89S8253-24AU 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 AT89S8253-24AU devices; we pay more attention to the channels and quality of AT89S8253-24AU products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of AT89S8253-24AU chips? Including MICROCHIP original factory information, 8-bit Microcontrollers - MCU application, AT89S8253-24AU 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 AT89S8253-24AU 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 AT89S8253-24AU, 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 AT89S8253-24AU?
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 AT89S825324AU we delivered, we will accept the replacement or return of the AT89S8253-24AU 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 AT89S8253-24AU.
(3)The AT89S8253-24AU 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 AT89S8253-24AU datasheet pdf, AT89S8253 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...
  • AT89S8252-24AC
    AT89S8252-24AC 8-Bit Microcontroller with 8K Bytes Flash,Microcontrollers (MCU) 8K Fl...
  • AT89S8252-24JI
    AT89S8252-24JI High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators wit...
  • AT89S8252-24PC
    AT89S8252-24PC High Speed CMOS Logic Quad Buffers with 3-State Outputs 14-PDIP -55 to...
  • AT89S8252-24AI
    AT89S8252-24AI 8-Bit Microcontroller with 8K Bytes Flash,Microcontrollers (MCU) w/8k
  • AT89S8252-24JC
    AT89S8252-24JC 8-bit Microcontrollers - MCU 8K Flash 24M
  • AT89S8252-24JU
    AT89S8252-24JU SINGLE CYCLE 8051 2K ISP FLASH 2.4-5.5V(MCU 5X)

Certificates & Honor

Certificates & Honor