| PartNumber | AT27LV520-90XC | AT27LV520-90SC | AT27LV520-90SI |
| Description | IC EPROM 512K PARALLEL 20TSSOP | IC EPROM 512K PARALLEL 20SOIC | IC EPROM 512K PARALLEL 20SOIC |
| Manufacturer | - | Atmel | Atmel |
| Product Category | - | Memory | Memory |
| Series | - | - | - |
| Packaging | - | Tube | Tube |
| Package Case | - | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) |
| Operating Temperature | - | 0°C ~ 70°C (TC) | -40°C ~ 85°C (TC) |
| Interface | - | Parallel | Parallel |
| Voltage Supply | - | 3 V ~ 3.6 V, 4.5 V ~ 5.5 V | 3 V ~ 3.6 V, 4.5 V ~ 5.5 V |
| Supplier Device Package | - | 20-SOIC | 20-SOIC |
| Memory Size | - | 512K (64K x 8) | 512K (64K x 8) |
| Memory Type | - | EPROM OTP | EPROM OTP |
| Speed | - | 90ns | 90ns |
| Format Memory | - | EPROMs | EPROMs |