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  • DS2502AR1-C5H+TR
  • DS2502AR1-C5H+TR 0
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1-Wire 1k-bit EPROM

Manufacturer :
Maxim Integrated
Package/Case :
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RoHs Status:
Lead free/RoHS Compliant

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DS2502AR1-C5H+TR Product Details

The DS2502AR1-C5H+TR 1Kb Add-Only Memory identifies and stores relevant information about the product to which it is associated. This lot- or product-specific information can be accessed with minimal interface—for example, a single port pin of a microcontroller. The DS2502AR1-C5H+TR consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (09h) plus 1Kb of EPROM which is user-programmable. The power to program and read the DS2502AR1-C5H+TR is derived entirely from the 1-Wire communication line. Data is transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return. The entire device can be programmed and then write-protected if desired. Alternatively, the part may be programmed multiple times with new data being appended to, but not overwriting, existing data with each subsequent programming of the device. Note: Individual bits can be changed only from a logical 1 to a logical 0, never from a logical 0 to a logical 1. A provision is also included for indicating that a certain page or pages of data are no longer valid and have been replaced with new or updated data that is now residing at an alternate page address. This page address redirection allows software to patch data and enhance the flexibility of the device as a stand-alone database. The 48-bit serial number that is factory-lasered into each DS2502AR1-C5H+TR provides a guaranteed unique identity which allows for absolute traceability. The familiar TO-92 or SOIC or TSOC packages provide a compact enclosure that allows standard assembly equipment to handle the device easily for attachment to printed circuit boards or wiring. Typical applications include storage of calibration constants, maintenance records, asset tracking, product revision status, and access codes.


  • Easily Add Traceability and Relevant Information to Any Individual System
    • 1k-Bit EPROM with Page-Level Write Protection and Guaranteed Unique 64-Bit ROM ID Chip for Absolute Traceability
    • 1024 Bits Electrically Programmable Read Only Memory (EPROM)
    • Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code + 48-Bit Serial Number + 8-Bit CRC Tester)
    • EPROM Partitioned into Four 256-Bit Pages for Randomly Accessing Packetized Data
    • Each Memory Page Can Be Permanently Write- Protected to Prevent Tampering
    • Device is an Add Only Memory Where Additional Data Can Be Programmed into EPROM Without Disturbing Existing Data
    • Architecture Allows Software to Patch Data by Superseding an Old Page in Favor of a Newly Programmed Page
    • 8-Bit Family Code Specifies DS2502 Communications Requirements to Reader
  • Minimalist 1-Wire Interface Lowers Cost and Interface Complexity
    • Reduces Control, Address, Data, Power, and Programming Signals to a Single Data Pin
    • Directly Connects to a Single Port Pin of a Microprocessor and Communicates at up to 16.3kb Per Second
    • Built-In Multidrop Controller Ensures Compatibility with Other 1-Wire Net Products o Presence Pulse Acknowledges When the Reader First Applies Voltage
    • Low Cost TO-92, SFN, or 8-Pin SO, SOT-23 (3 Pin), TSOC and WLP Surface Mount Package
  • Wide Voltage and Temperature Operating Ranges Provide Robust System Performance
    • Reads Over Voltage Range of 2.8V to 6.0V at -40°C to +85°C
    • Zero Standby Power Required
    • Programs at 11.5V to 12.0V from -40°C to +50°C

DS2502AR1-C5H+TR Block Diagram
(Picture: Diagram)

Technical Parameters

Applications - Vsupply (max) (V) 6
Memory Type EPROM RoHS Available Yes
Memory Size 1K x 1 Oper. Temp. (\u00b0C) -40 to +85
Bus Type 1-Wire Package/Pins CUST/2 ,FCHIP/2 ,SFN/2 ,SOIC (N)/8 ,SOT23/3 ,TDFN/8 ,THIN WLP/4 ,TO92/3 ,TSOC/6
Features Add-Only Memory ,Serial Number Smallest Available Pckg. (max w/pins) (mm2) 8
Vsupply (min) (V) 2.8 Budgetary Price (See Notes) $1.04 @1k

DS2502AR1-C5H+TR Documents

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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 DS2502AR1-C5H+TR 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 DS2502AR1-C5H+TR devices; we pay more attention to the channels and quality of DS2502AR1-C5H+TR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of DS2502AR1-C5H+TR chips? Including MAXIM original factory information, Memory (EPROM, EEPROM, ROM, NV SRAM) application, DS2502AR1-C5H+TR pictures?
You can use Jotrin's intelligent search engine, or filter by Memory (EPROM, EEPROM, ROM, NV SRAM) category, or find it through Maxim Integrated Information page.
Q: Are the MAXIM's DS2502AR1-C5H+TR 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 DS2502AR1-C5H+TR, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Q: What is the process for returns or replacement of DS2502AR1-C5H+TR?
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 DS2502AR1C5H+TR we delivered, we will accept the replacement or return of the DS2502AR1-C5H+TR 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 DS2502AR1-C5H+TR.
(3)The DS2502AR1-C5H+TR 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.
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