| 885241 | M27C256B-20C1 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885242 | M27C256B-20C1TR | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885243 | M27C256B-20C1TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885244 | M27C256B-20C1X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885245 | M27C256B-20C3 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885246 | M27C256B-20C3TR | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885247 | M27C256B-20C3TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885248 | M27C256B-20C3X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885249 | M27C256B-20C6 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885250 | M27C256B-20C6TR | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885251 | M27C256B-20C6TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885252 | M27C256B-20C6X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885253 | M27C256B-20C7TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885254 | M27C256B-20C7X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885255 | M27C256B-20F1 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885256 | M27C256B-20F1TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885257 | M27C256B-20F1X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885258 | M27C256B-20F3 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885259 | M27C256B-20F3TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885260 | M27C256B-20F3X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885261 | M27C256B-20F6 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885262 | M27C256B-20F6TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885263 | M27C256B-20F6X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885264 | M27C256B-20F7TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885265 | M27C256B-20F7X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885266 | M27C256B-20N1 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885267 | M27C256B-20N1TR | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885268 | M27C256B-20N1TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885269 | M27C256B-20N1X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885270 | M27C256B-20N3 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885271 | M27C256B-20N3TR | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885272 | M27C256B-20N3TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885273 | M27C256B-20N3X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885274 | M27C256B-20N6 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885275 | M27C256B-20N6TR | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
| 885276 | M27C256B-20N6TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885277 | M27C256B-20N6X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885278 | M27C256B-20N7TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885279 | M27C256B-20N7X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885280 | M27C256B-20XB1 | 256 KB (32KB x 8) EPROM, 5V, 200ns | SGS Thomson Microelectronics |
