STK12C68-L35I,IC NVSRAM 64KBIT 35NS 28LCC
STK12C68-L45,IC NVSRAM 64KBIT 45NS 28LCC
STK12C68-L45I,IC NVSRAM 64KBIT 45NS 28LCC
STK12C68-PF25,IC NVSRAM 64KBIT 25NS 28DIP
STK12C68-PF25I,IC NVSRAM 64KBIT 25NS 28DIP
STK12C68-PF45,IC NVSRAM 64KBIT 45NS 28DIP
STK12C68-PF45I,IC NVSRAM 64KBIT 45NS 28DIP
STK12C68-PF55,IC NVSRAM 64KB 55NS 28-PDIP