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| Part Number | AT27C256R-45RI |
| Datasheet | AT27C256R-45RI datasheet |
| Description | IC EPROM 256K PARALLEL 28SOIC |
| Manufacturer | Microchip Technology |
| Series | - |
| Part Status | Obsolete |
| Memory Type | Non-Volatile |
| Memory Format | EPROM |
| Technology | EPROM - OTP |
| Memory Size | 256Kb (32K x 8) |
| Clock Frequency | - |
| Write Cycle Time - Word, Page | - |
| Access Time | 45ns |
| Memory Interface | Parallel |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TC) |
| Mounting Type | Surface Mount |
| Package / Case | 28-SOIC (0.342", 8.69mm Width) |
| Supplier Device Package | 28-SOIC |