| 885361 | M27C256B-25F6 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885362 | M27C256B-25F6TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885363 | M27C256B-25F6X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885364 | M27C256B-25F7TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885365 | M27C256B-25F7X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885366 | M27C256B-25N1 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885367 | M27C256B-25N1TR | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885368 | M27C256B-25N1TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885369 | M27C256B-25N1X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885370 | M27C256B-25N3 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885371 | M27C256B-25N3TR | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885372 | M27C256B-25N3TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885373 | M27C256B-25N3X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885374 | M27C256B-25N6 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885375 | M27C256B-25N6TR | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885376 | M27C256B-25N6TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885377 | M27C256B-25N6X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885378 | M27C256B-25N7TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885379 | M27C256B-25N7X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885380 | M27C256B-25XB1 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885381 | M27C256B-25XB1TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885382 | M27C256B-25XB1X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885383 | M27C256B-25XB3 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885384 | M27C256B-25XB3TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885385 | M27C256B-25XB3X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885386 | M27C256B-25XB6 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885387 | M27C256B-25XB6TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885388 | M27C256B-25XB6X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885389 | M27C256B-25XB7TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885390 | M27C256B-25XB7X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885391 | M27C256B-25XC1 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885392 | M27C256B-25XC1TR | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885393 | M27C256B-25XC1TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885394 | M27C256B-25XC1X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885395 | M27C256B-25XC3 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885396 | M27C256B-25XC3TR | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885397 | M27C256B-25XC3TR | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885398 | M27C256B-25XC3X | 256 Kbit (32Kb x 8) UV EPROM și OTP EPROM | ST Microelectronics |
| 885399 | M27C256B-25XC6 | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
| 885400 | M27C256B-25XC6TR | 256 KB (32KB x 8) EPROM, 5V, 250ns | SGS Thomson Microelectronics |
