| PartNumber | M27W401-80F6 | M27W401-80K6 | M27W401-80B6 |
| Description | EPROM 4M (512Kx8) 80ns | EPROM 4M (512Kx8) 80ns | IC EPROM 4K PARALLEL 32DIP |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | EPROM | EPROM | Memory |
| RoHS | Y | Y | - |
| Mounting Style | Through Hole | SMD/SMT | - |
| Package / Case | CDIP-32 | PLCC-32 | - |
| Type | OTP, UV | OTP, UV | - |
| Memory Size | 4 MB | 4 MB | 4K (512 x 8) |
| Organization | 512 k x 8 | 512 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 | 2.7 V | 2.7 V | - |
| Minimum Operating Temperature | 0 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Series | M27W401 | M27W401 | - |
| Packaging | Tube | Tube | Tube |
| Access Time | 35 ns | 80 ns | - |
| Brand | STMicroelectronics | STMicroelectronics | - |
| Operating Supply Voltage | 2.7 V to 3.6 V | 2.7 V to 3.6 V | - |
| Output Enable Access Time | 50 ns | 50 ns | - |
| Product Type | EPROM | EPROM | - |
| Factory Pack Quantity | 240 | 32 | - |
| Subcategory | Memory & Data Storage | Memory & Data Storage | - |
| Moisture Sensitive | - | Yes | - |
| Package Case | - | - | 32-DIP (0.600", 15.24mm) |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Interface | - | - | Parallel |
| Voltage Supply | - | - | 2.7 V ~ 3.6 V |
| Supplier Device Package | - | - | 32-PDIP |
| Memory Type | - | - | EPROM OTP |
| Speed | - | - | 80ns |
| Format Memory | - | - | EPROMs |