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Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

CAT24C21WI specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage2.5V ~ 5.5V
Clock frequency400 kHz
Memory interfaceI²C
Operating temperature-40°C~85°C(TA)
PackageBulk
TechnologyEEPROM
Access time1 µs
Memory size1Kbit
Memory formatEEPROM
Case8-SOIC (0.154\", 3.90mm Width)
Memory organization128 x 8
Write cycle time - word, page5ms