| Part name | Description | Manufacturer | Package | Pins | Temp. Range | PDF datasheet |
| M27C256B-60N6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | TSOP | 28 | -40°C | 85°C | M27C256B-60N6TR datasheet (107K) |
| M27C256B-60XB1 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PDIP | 28 | 0°C | 70°C | M27C256B-60XB1 datasheet (107K) |
| M27C256B-60XB3 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PDIP | 28 | -40°C | 125°C | M27C256B-60XB3 datasheet (107K) |
| M27C256B-60XB6 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PDIP | 28 | -40°C | 85°C | M27C256B-60XB6 datasheet (107K) |
| M27C256B-60XC1 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PLCC | 32 | 0°C | 70°C | M27C256B-60XC1 datasheet (107K) |
| M27C256B-60XC1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PLCC | 32 | 0°C | 70°C | M27C256B-60XC1TR datasheet (107K) |
| M27C256B-60XC3 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PLCC | 32 | -40°C | 125°C | M27C256B-60XC3 datasheet (107K) |
| M27C256B-60XC3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PLCC | 32 | -40°C | 125°C | M27C256B-60XC3TR datasheet (107K) |
| M27C256B-60XC6 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PLCC | 32 | -40°C | 85°C | M27C256B-60XC6 datasheet (107K) |
| M27C256B-60XC6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS-Thomson Microelectronics | PLCC | 32 | -40°C | 85°C | M27C256B-60XC6TR datasheet (107K) |
