AM24LC21是Anachip Corp.生产的一款128 x 8-bit dual-mode Electrically Erasable PROM,具有单电源供电、低功耗、2-wire serial interface bus、I2C compatible、100Khz (2.5V) and 400Khz (5V) compatibility、Self-timed write cycle、Hardware write-protect pin、Page-write buffer、1,000,000 erase/write cycles、Data retention > 40 years、8-pin PDIP and SOP packages、Available for extended temperature ranges Commercial (C): 0°C to +70°C Industrial (I): -40°C to +85°C等特点