GR >> 23LCV512T-ESN 
541351
23LCV512T-E/SN
Microchip Technology
Quantity 9000
Packaging IC SRAM 512KBIT 20MHZ 8SOIC
Description original&Quality new original
770956
23LCV512T-E/SN
Microchip Technology
Quantity 20000
Packaging IC NVSRAM 512KBIT 20MHZ 8SOIC
Description original&Quality new original