| 270681 | AT28HC256E-12SI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270682 | AT28HC256E-12TC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270683 | AT28HC256E-12TI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270684 | AT28HC256E-12UM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270685 | AT28HC256E-12UM/883 | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270686 | AT28HC256E-70JC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270687 | AT28HC256E-70JI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270688 | AT28HC256E-70PC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270689 | AT28HC256E-70PI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270690 | AT28HC256E-90DM/883 | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270691 | AT28HC256E-90DM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270692 | AT28HC256E-90FM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270693 | AT28HC256E-90JC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270694 | AT28HC256E-90JI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270695 | AT28HC256E-90LM/883 | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270696 | AT28HC256E-90LM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270697 | AT28HC256E-90PC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270698 | AT28HC256E-90PI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270699 | AT28HC256E-90TC | 256(32K x 8) high speed CMOS EPROM | Atmel |
|
| 270700 | AT28HC256E-90TI | 256(32K x 8) high speed CMOS EPROM | Atmel |
| 270701 | AT28HC256E-90UM/883 | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270702 | AT28HC256E-90UM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270703 | AT28HC256F | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270704 | AT28HC256F-12DM/883 | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270705 | AT28HC256F-12DM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270706 | AT28HC256F-12FM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270707 | AT28HC256F-12JC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270708 | AT28HC256F-12JI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270709 | AT28HC256F-12LM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270710 | AT28HC256F-12LM/883 | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270711 | AT28HC256F-12PC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270712 | AT28HC256F-12PI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270713 | AT28HC256F-12SC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270714 | AT28HC256F-12SI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270715 | AT28HC256F-12TC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270716 | AT28HC256F-12TI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270717 | AT28HC256F-12UM/883 | 256 32K x 8 High Speed Parallel EEPROMs | Atmel |
| 270718 | AT28HC256F-12UM/883 | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270719 | AT28HC256F-70JC | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
| 270720 | AT28HC256F-70JI | 256 32K x 8 High Speed CMOS E2PROM | Atmel |
