AT28HC256E - 256 (32K x 8) High Speed CMOS E2PROM In this document: AT28HC256E-12JC, AT28HC256E-12JI, AT28HC256E-12PC, AT28HC256E-12PI, AT28HC256E-12SC, AT28HC256E-12SI, AT28HC256E-12TI
AT28HC256E - 256 (32K x 8) High Speed Parallel EEPROMs In this document: AT28HC256E-12JC, AT28HC256E-12JI, AT28HC256E-12PC, AT28HC256E-12PI, AT28HC256E-12SC, AT28HC256E-12SI, AT28HC256E-12TC