| PartNumber | AT27BV256-70RU | AT27BV256-70RC | AT27BV256-70RI |
| Description | EPROM 1Mb (64Kx16) OTP 2.7-3.6V 70ns | IC EPROM 256K PARALLEL 28SOIC | IC EPROM 256K PARALLEL 28SOIC |
| Manufacturer | Microchip | - | - |
| Product Category | EPROM | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOIC-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 Max | 3.6 V, 5.5 V | - | - |
| Supply Voltage Min | 2.7 V, 4.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Series | AT27BV256 | - | - |
| Access Time | 70 ns | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Operating Supply Voltage | 3.3 V | - | - |
| Output Enable Access Time | 50 ns | - | - |
| Product Type | EPROM | - | - |
| Factory Pack Quantity | 26 | - | - |
| Subcategory | Memory & Data Storage | - | - |
| Unit Weight | 0.078125 oz | - | - |