| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| M27C4001-70L1TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | LCCC | 32 | 0°C | 70°C | M27C4001-70L1TR datasheet (113K) |
| M27C4001-70L6TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | LCCC | 32 | -40°C | 85°C | M27C4001-70L6TR datasheet (113K) |
| M27C4001-70L6X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | LCCC | 32 | -40°C | 85°C | M27C4001-70L6X datasheet (113K) |
| M27C4001-70N1TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | TSOP | 32 | 0°C | 70°C | M27C4001-70N1TR datasheet (113K) |
| M27C4001-70N1X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | TSOP | 32 | 0°C | 70°C | M27C4001-70N1X datasheet (113K) |
| M27C4001-70N6TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | TSOP | 32 | -40°C | 85°C | M27C4001-70N6TR datasheet (113K) |
| M27C4001-70N6X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | TSOP | 32 | -40°C | 85°C | M27C4001-70N6X datasheet (113K) |
| M27C4001-70XB1X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | PDIP | 32 | 0°C | 70°C | M27C4001-70XB1X datasheet (113K) |
| M27C4001-70XB6X | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | PDIP | 32 | -40°C | 85°C | M27C4001-70XB6X datasheet (113K) |
| M27C4001-70XC1TR | 4 Mbit (512Kb x 8) EPROM, 70ns | SGS-Thomson Microelectronics | PLCC | 32 | 0°C | 70°C | M27C4001-70XC1TR datasheet (113K) |
