| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| M27C4001-70XC1X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | PLCC | 32 | 0°C | 70°C | M27C4001-70XC1X datasheet (113K) |
| M27C4001-70XC6TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | PLCC | 32 | -40°C | 85°C | M27C4001-70XC6TR datasheet (113K) |
| M27C4001-70XC6X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | PLCC | 32 | -40°C | 85°C | M27C4001-70XC6X datasheet (113K) |
| M27C4001-70XF1X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | FDIP | 32 | 0°C | 70°C | M27C4001-70XF1X datasheet (113K) |
| M27C4001-70XF6X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | FDIP | 32 | -40°C | 85°C | M27C4001-70XF6X datasheet (113K) |
| M27C4001-70XL1TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | LCCC | 32 | 0°C | 70°C | M27C4001-70XL1TR datasheet (113K) |
| M27C4001-70XL1X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | LCCC | 32 | 0°C | 70°C | M27C4001-70XL1X datasheet (113K) |
| M27C4001-70XL6TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | LCCC | 32 | -40°C | 85°C | M27C4001-70XL6TR datasheet (113K) |
| M27C4001-70XN1TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | TSOP | 32 | 0°C | 70°C | M27C4001-70XN1TR datasheet (113K) |
| M27C4001-70XN1X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | TSOP | 32 | 0°C | 70°C | M27C4001-70XN1X datasheet (113K) |
