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AT
Atmel
XXXXX
Family Descriptor
24C, 24HC = 2 wire serial EEPROM24CS = 2 wire serial EEPROM with Software Write Protection or with128-bit serial number feature24MAC = 2 wire serial EEPROM with Extended Memory (128-bit SerialNumber, EUI-48/64 Value)24RF = 2 wire serial EEPROM with RFID Interface30TSE = 2 wire serial EEPROM with Temperature Sensor34C = 2 wire serial EEPROM with Software Write Protection
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Option
Blank00 = Jedec (JC42.4) SO-DIMM SPD + TS compliant4 = EUI-48 standard6 = EUI-64 standard75 = Pin and Software Compatible to Industry-Standard LM75-Type Devices
C = Commercial temperature rangeI = Industrial temperature rangeH = Green, NiPdAu lead finish, Industrial temperature rangeU = Green, matte Sn lead finish, Industrial temperature rangeP = Green, NiPdAu lead finish, Automotive temperature range9 = Automotive temperature grade 3
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Operating Voltage
Blank = 4.5V to 5.5V2.7 = 2.7V to 5.5V2.5 = 2.5V to 5.5V1.8 = 1.8V to 5.5V or 1.8V to 3.6VM = 1.7V to 3.6V or 1.7V to 5.5VD = 2.5V to 5.5VL = 1.7V to 5.5V
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Shipping Carrier Option
B or Blank = Bulk (tubes)T = Tape and Reel
Note: Part number description table describes usual part-numbering system for more chips, therefore this table can contain information, that might not be valid for the actually selected chip. The information here are provided on the best-effort basis and might be either inaccurate or incoplete. Therefore always check the latest datasheet of the chip for part number description detail. If you find some inaccuracy, let us please know.