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TOUCH MEMORY AND APPLICATIONS

TD-1990A-F5:

TD1990A SPECIAL FEATURES 
 
TD1990A is full compatible with DS1990A, DS1990R and i1990A 
 
Unique 48–bit serial number 
 
Low-cost electronic key for access control 
 
8-bit CRC for checking data integrity 
 
Can be read in less than 5 ms
 
Operating temperature range of -40°C to +85°C 



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