| PartNumber | M27W402-100B6 | M27W401-80N6 | M27W402-100K6 |
| Description | EPROM 4M (256Kx16) 100ns | IC EPROM 4K PARALLEL 32TSOP | IC EPROM 4K PARALLEL 44PLCC |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | EPROM | Memory | Memory |
| RoHS | N | - | - |
| Mounting Style | Through Hole | - | - |
| Package / Case | PDIP-40 | - | - |
| Type | OTP, UV | - | - |
| Memory Size | 4 MB | 4K (512 x 8) | 4K (256 x 16) |
| Organization | 256 k x 16 | - | - |
| Interface Type | Parallel | - | - |
| Operating Supply Current | 50 mA | - | - |
| Programming Voltage | 12.75 V | - | - |
| Supply Voltage Min | 2.7 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Series | M27W402 | - | - |
| Packaging | Tube | Tube | Tube |
| Access Time | 100 ns | - | - |
| Brand | STMicroelectronics | - | - |
| Operating Supply Voltage | 2.7 V to 3.6 V | - | - |
| Output Enable Access Time | 60 ns | - | - |
| Product Type | EPROM | - | - |
| Factory Pack Quantity | 9 | - | - |
| Subcategory | Memory & Data Storage | - | - |
| Unit Weight | 0.210004 oz | - | - |
| Package Case | - | 32-TFSOP (0.724", 18.40mm Width) | 44-LCC (J-Lead) |
| Operating Temperature | - | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Interface | - | Parallel | Parallel |
| Voltage Supply | - | 2.7 V ~ 3.6 V | 2.7 V ~ 3.6 V |
| Supplier Device Package | - | 32-TSOP | 44-PLCC (16.51x16.51) |
| Memory Type | - | EPROM OTP | EPROM OTP |
| Speed | - | 80ns | 100ns |
| Format Memory | - | EPROMs | EPROMs |