DS2502 Reference Design Circuit | EPROM Application Circuit

The DS2502 adds only memory for 1K bits to identify and store information about the product. This article mainly introduces the DS2502 features, application range, reference design circuit and circuit analysis to help you shorten the design time.

DS2502 features: 1024-bit electrically programmable read-only memory (EPROM); built-in multipoint controller; communication rate up to 16.3kbps

DS2502 reference design application circuit:

Figure 1DS2502 internal structure diagram

The DS2502 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 interfacefor example, a single port pin of a microcontroller.

Figure 2DS2502 reference design

TheDS2502 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 DS2502 is derived integer from the 1-Wire? communication line.

DS2502 Chinese Data Sheet: Click to download

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