| PartNumber | AT27C256R-15PC | AT27C256R-15PI | AT27C256R-15PA |
| Description | EPROM 256k bit | IC EPROM 256K PARALLEL 28DIP | IC EPROM 256K PARALLEL 28DIP |
| Manufacturer | Microchip | - | - |
| Product Category | EPROM | - | - |
| RoHS | N | - | - |
| Mounting Style | Through Hole | - | - |
| Package / Case | PDIP-28 | - | - |
| Type | OTP | - | - |
| Memory Size | 256 kbit | - | - |
| Organization | 32 k x 8 | - | - |
| Interface Type | Parallel | - | - |
| Operating Supply Current | 20 mA | - | - |
| Programming Voltage | 13 V | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Series | AT27C256R | - | - |
| Access Time | 150 ns | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Output Enable Access Time | 40 ns | - | - |
| Product Type | EPROM | - | - |
| Factory Pack Quantity | 14 | - | - |
| Subcategory | Memory & Data Storage | - | - |
| Unit Weight | 0.147798 oz | - | - |