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| Part Number | 28C64A-25B/UC | 28C64A-20B/UC |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Obsolete |
| Memory Type | Non-Volatile | Non-Volatile |
| Memory Format | EEPROM | EEPROM |
| Technology | EEPROM | EEPROM |
| Memory Size | 64Kb (8K x 8) | 64Kb (8K x 8) |
| Memory Interface | Parallel | Parallel |
| Clock Frequency | - | - |
| Write Cycle Time - Word, Page | 1ms | 1ms |
| Access Time | 250 ns | 200 ns |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | - | - |
| Mounting Type | - | - |
| Package / Case | - | - |
| Supplier Device Package | - | - |
