DS2502-E48 Maxim, DS2502-E48 Datasheet
DS2502-E48
Related parts for DS2502-E48
DS2502-E48 Summary of contents
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... Maxim Integrated Products, Inc. DESCRIPTION The DS2502-E48 is a variant of the DS2502 1024-bit add-only memory. It differs from the standard DS2502 in its custom ROM family code 89h, and the UniqueWare Identifier 5E7h in place of the upper 12 bits of the standard ROM serialization field. Otherwise, the electrical and logical behavior is identical to that of the DS2502 ...
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... MOST SIGNIFICANT BIT This information is stored in the DS2502-E48 as 48-bit number with the least significant byte at the lower address. Including the length byte and the inverted CRC, the complete set of data is shown in Figure 3. Figure 3. PHYSICAL ADDRESS AND DATA MAPPING INSIDE THE DEVICE ...
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... The contents of the memory address range 0Dh to 1Fh is FFh. These cells cannot be altered since the whole memory page is write-protected. The memory range from 20h to 7Fh, however, is user- programmable. It can be write-protected by programming the corresponding write-protect bit in the status memory of the DS2502-E48 ...
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REVISION HISTORY REVISION DATE Changed the Ordering Information to lead free. Included an explanation of “Default Data Structure” above Figure 1. Emphasized that the 16-bit CRC is inverted. 12/09 Deleted paragraph on how to set up a UniqueWare project. Inserted ...