DS2502-E64

19-5072; 12/09 www.maxim-ic.com DS2502-E64 IEEE EUI-64 Node Address Chip FEATURES  IEEE-approved factory programmed 64-bit node address chip (EUI-64) with 768 bits user-programmable OTP-EPROM communicates with the economy of one signal plus ground  Meets the node identification requirements of IEEE Standard 1394-1995 (FireWire)  Unique, factory-lasered and tested 64-bit registration number assures absolute traceability because no two parts are alike  Built-in multidrop controller ensures compatibility with other 1-Wire products  Device is an “add only” memory where additional data can be programmed into EPROM without disturbing existing data  Reduces control, address, data, power and programming signals to a single pin  Directly connects to a single port pin of a microprocessor and communicates at up to 16.3k bits per second  Presence detector acknowledges when reader first applies voltage  Low cost TO-92 or TSOC surface mount packages  Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C; programs at 11.5V to 12.0V from -40°C to +50°C 321 PIN ASSIGNMENT TO-92 DS2502-E64 YYWWRR CCCCCC NC DATA GND TSOC PACKAGE E64 2502 YYWW NC NC NC TOP VIEW THE DOT MARKS PIN 1 YYWW = DATE CODE RR = DIE REVISION CODE CCCCCC = COUNTRY CODE GND DATA NC 123 BOTTOM VIEW SIDE VIEW ORDERING INFORMATION PART TEMP PIN- RANGE PACKAGE DS2502-E64+ -40°C to +85°C 3 TO-92 DS2502P-E64+ -40°C to +85°C 6 TSOC + Denotes a lead(Pb)-free/RoHS-compliant package. F...