FFFE (Form, Fit & Functional Equivalents)
| Description | Package | Voltage | Speed | Temperature |
|---|---|---|---|---|
| AT28C64-25JI | PLCC-32 | 5.0 V | 250 NS | -40 C~+85 C |
| AT28C64B-25JI | PLCC-32 | 5.0 V | 250 NS | -40 C~+85 C |
| AT28C64B-25JI 27 | PLCC-32 | 5.0 V | 250 NS | -40 C~+85 C |
| AT28C64E-25JI | PLCC-32 | 5.0 V | 250 NS | -40 C~+85 C |