| PartNumber | M27C512-90C1 | M27C512-90B6 | M27C512-90B1 |
| Description | EPROM 512K (64Kx8) 90ns | EPROM 512K (64Kx8) 90ns | IC EPROM 512K PARALLEL 28DIP |
| Manufacturer | STMicroelectronics | STMicroelectronics | - |
| Product Category | EPROM | EPROM | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | PLCC-32 | PDIP-28 | - |
| Type | OTP, UV | OTP, UV | - |
| Memory Size | 512 kB | 512 kB | - |
| Organization | 64 k x 8 | 64 k x 8 | - |
| Interface Type | Parallel | Parallel | - |
| Operating Supply Current | 50 mA | 50 mA | - |
| Programming Voltage | 12.75 V | 12.75 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 70 C | + 85 C | - |
| Series | M27C512-90 | M27C512-90 | - |
| Packaging | Tube | Tube | - |
| Access Time | 90 ns | 90 ns | - |
| Brand | STMicroelectronics | STMicroelectronics | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Output Enable Access Time | 40 ns | 40 ns | - |
| Product Type | EPROM | EPROM | - |
| Factory Pack Quantity | 32 | 13 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Unit Weight | - | 0.147798 oz | - |