| Nr. | Part Name | Description | Manufacturer by |
| 678281 | M27C256B-60XC3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678282 | M27C256B-60XC3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678283 | M27C256B-60XC6 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678284 | M27C256B-60XC6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678285 | M27C256B-60XC6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678286 | M27C256B-60XC6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678287 | M27C256B-60XC7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678288 | M27C256B-60XC7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678289 | M27C256B-60XF1 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678290 | M27C256B-60XF1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678291 | M27C256B-60XF1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678292 | M27C256B-60XF1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678293 | M27C256B-60XF3 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678294 | M27C256B-60XF3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678295 | M27C256B-60XF3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678296 | M27C256B-60XF6 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678297 | M27C256B-60XF6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678298 | M27C256B-60XF6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678299 | M27C256B-60XF7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678300 | M27C256B-60XF7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678301 | M27C256B-60XN1 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678302 | M27C256B-60XN1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678303 | M27C256B-60XN1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678304 | M27C256B-60XN1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678305 | M27C256B-60XN3 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678306 | M27C256B-60XN3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678307 | M27C256B-60XN3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678308 | M27C256B-60XN3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678309 | M27C256B-60XN6 | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678310 | M27C256B-60XN6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678311 | M27C256B-60XN6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 60ns | SGS Thomson Microelectronics |
| 678312 | M27C256B-60XN6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678313 | M27C256B-60XN7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678314 | M27C256B-60XN7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678315 | M27C256B-70B1 | 256 Kbit (32Kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678316 | M27C256B-70B1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678317 | M27C256B-70B1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678318 | M27C256B-70B3 | 256 Kbit (32Kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678319 | M27C256B-70B3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678320 | M27C256B-70B3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| | | |
