| Description | Package | Voltage | Speed | Temperature |
|---|---|---|---|---|
| AT28C64-25SI | SOIC-28 | 5.0 V | 250 NS | -40 C~+85 C |
| AT28C64B-20JI9/SL255. | SOIC-28 | 5.0 V | 250 NS | -40 C~+85 C |
| AT28C64B-25SI | SOIC-28 | 5.0 V | 250 NS | -40 C~+85 C |
| AT28C64B-25SI,-15SI | SOIC-28 | 5.0 V | 250 NS | -40 C~+85 C |
| AT28C64E-25SI | SOIC-28 | 5.0 V | 250 NS | -40 C~+85 C |