| PartNumber | AT27LV520-90XI | AT27LV520-70XI | AT27LV520-70XU |
| Description | EPROM 512Kb (64Kx8) OTP 3V 90ns | EPROM 512Kb (64Kx8) OTP 3V 70ns | EPROM 512Kb (64Kx8) OTP 3V 70ns |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | EPROM | EPROM | EPROM |
| RoHS | E | E | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TSSOP-20 | TSSOP-20 | TSSOP-20 |
| Type | OTP | OTP | OTP |
| Memory Size | 512 kb | 512 kb | 512 kb |
| Organization | 64 k x 8 | 64 k x 8 | 64 k x 8 |
| Interface Type | Parallel | Parallel | Parallel |
| Operating Supply Current | 8 mA | 8 mA | 8 mA |
| Programming Voltage | 13 V | 13 V | 13 V |
| Supply Voltage Max | 3.6 V, 5.5 V | 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 | 3 V, 4.5 V |
| Minimum Operating Temperature | 0 C | 0 C | 0 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Access Time | 70 ns | 70 ns | 70 ns |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Operating Supply Voltage | 3.3 V, 5 V | 3.3 V, 5 V | 3.3 V, 5 V |
| Output Enable Access Time | 35 ns | 30 ns | 30 ns |
| Product Type | EPROM | EPROM | EPROM |
| Factory Pack Quantity | 74 | 74 | 74 |
| Subcategory | Memory & Data Storage | Memory & Data Storage | Memory & Data Storage |
| Unit Weight | 0.006737 oz | 0.006737 oz | 0.006737 oz |