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| PartNumber | AT27LV520-90XU | AT27LV520-90XI | AT27LV520-90XC |
| Description | EPROM 512Kb (64Kx8) OTP 3V 90ns | EPROM 512Kb (64Kx8) OTP 3V 90ns | IC EPROM 512K PARALLEL 20TSSOP |
| Manufacturer | Microchip | Microchip | - |
| Product Category | EPROM | EPROM | - |
| RoHS | Y | E | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TSSOP-8 | TSSOP-20 | - |
| Type | OTP | OTP | - |
| Memory Size | 512 kb | 512 kb | - |
| Organization | 64 k x 8 | 64 k x 8 | - |
| Interface Type | Parallel | Parallel | - |
| Operating Supply Current | 8 mA | 8 mA | - |
| Programming Voltage | 13 V | 13 V | - |
| Supply Voltage Max | 3.6 V, 5.5 V | 3.6 V, 5.5 V | - |
| Supply Voltage Min | 3 V, 4.5 V | 3 V, 4.5 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Access Time | 70 ns | 70 ns | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Operating Supply Voltage | 3.3 V, 5 V | 3.3 V, 5 V | - |
| Output Enable Access Time | 35 ns | 35 ns | - |
| Product Type | EPROM | EPROM | - |
| Factory Pack Quantity | 74 | 74 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | 0.005573 oz | 0.006737 oz | - |