| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| M27C4001-15XL1X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | LCCC | 32 | 0°C | 70°C | M27C4001-15XL1X datasheet (113K) |
| M27C4001-15XL6TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | LCCC | 32 | -40°C | 85°C | M27C4001-15XL6TR datasheet (113K) |
| M27C4001-15XL6X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | LCCC | 32 | -40°C | 85°C | M27C4001-15XL6X datasheet (113K) |
| M27C4001-15XN1TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | TSOP | 32 | 0°C | 70°C | M27C4001-15XN1TR datasheet (113K) |
| M27C4001-15XN1X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | TSOP | 32 | 0°C | 70°C | M27C4001-15XN1X datasheet (113K) |
| M27C4001-15XN6TR | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | TSOP | 32 | -40°C | 85°C | M27C4001-15XN6TR datasheet (113K) |
| M27C4001-15XN6X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | TSOP | 32 | -40°C | 85°C | M27C4001-15XN6X datasheet (113K) |
| M27C4001-15XN6X | 4 Mbit (512Kb x 8) EPROM, 150ns | SGS-Thomson Microelectronics | TSOP | 32 | -40°C | 85°C | M27C4001-15XN6X datasheet (113K) |
| M27C4001-35B1X | 4 Mbit (512Kb x 8) EPROM, 35ns | SGS-Thomson Microelectronics | PDIP | 32 | 0°C | 70°C | M27C4001-35B1X datasheet (113K) |
| M27C4001-35B6X | 4 Mbit (512Kb x 8) EPROM, 35ns | SGS-Thomson Microelectronics | PDIP | 32 | -40°C | 85°C | M27C4001-35B6X datasheet (113K) |
