Dallas Semiconductor DS2501
The DS2501 512-bit 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 interfacefor example, a single port pin of a microcontroller. The DS2501 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 (11h) plus 512 bits of EPROM that is user-programmable.| Part No. | DS2501 |
|---|---|
| Datasheet | DS2501 Download |
| Manufacturer |  Dallas Semiconductor |
| Description | 512-Bit Add-Only Memory |
| Buy | Stock & Price |
FEATURES
● 512 bits Electrically Programmable Read Only Memory (EPROM) communicates with the economy of one signal plus ground● Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48bit serial number + 8-bit CRC tester) assures absolute traceability because no two parts are alike
● Built-in multidrop controller ensures compatibility with other MicroLAN products
● EPROM partitioned into two 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
● 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 16.3 kbps
● 8-bit family code specifies DS2501 co...
