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| PartNumber | AT29C020-12JC | AT29C020-12JU | AT29C020-12JI |
| Description | NOR Flash 2M(256Kx8) 5V ONLY- 120NS COM TEMP | NOR Flash PARALLEL FLASH 2Mbit (256k x 8) - 120NS | IC FLASH 2M PARALLEL 32PLCC |
| Manufacturer | Microchip | Microchip | Atmel |
| Product Category | NOR Flash | NOR Flash | Memory |
| RoHS | N | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | PLCC-32 | PLCC-32 | - |
| Series | AT29C | AT29C | - |
| Memory Size | 2 Mbit | 2 Mbit | 2M (256K x 8) |
| Interface Type | Parallel | Parallel | - |
| Organization | 256 k x 8 | 256 k x 8 | - |
| Timing Type | Asynchronous | Asynchronous | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Current Max | 40 mA | 40 mA | - |
| Minimum Operating Temperature | 0 C | - 40 C | - |
| Maximum Operating Temperature | + 70 C | + 85 C | - |
| Memory Type | NOR | NOR | FLASH |
| Speed | 120 ns | 120 ns | 120ns |
| Architecture | Sector | Sector | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | NOR Flash | NOR Flash | - |
| Standard | Not Supported | - | - |
| Factory Pack Quantity | 32 | 1920 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Part # Aliases | - | AT29C020-12JU-T | - |
| Packaging | - | - | Tube |
| Package Case | - | - | 32-LCC (J-Lead) |
| Operating Temperature | - | - | -40°C ~ 85°C (TC) |
| Interface | - | - | Parallel |
| Voltage Supply | - | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | - | - | 32-PLCC |
| Format Memory | - | - | FLASH |