| Nr. | Nombre de la Parte | Descripción | Fabricante |
| 678401 | M27C256B-70XF7TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678402 | M27C256B-70XF7X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678403 | M27C256B-70XN1 | 256 Kbytes (32kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678404 | M27C256B-70XN1TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678405 | M27C256B-70XN1TR | 256 Kbytes (32kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678406 | M27C256B-70XN1X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678407 | M27C256B-70XN3 | 256 Kbytes (32kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678408 | M27C256B-70XN3TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678409 | M27C256B-70XN3TR | 256 Kbytes (32kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678410 | M27C256B-70XN3X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678411 | M27C256B-70XN6 | 256 Kbytes (32kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678412 | M27C256B-70XN6TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678413 | M27C256B-70XN6TR | 256 Kbytes (32kb x 8) EPROM, 5V, 70ns | SGS Thomson Microelectronics |
| 678414 | M27C256B-70XN6X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678415 | M27C256B-70XN7TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678416 | M27C256B-70XN7X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678417 | M27C256B-80B1 | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678418 | M27C256B-80B1TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678419 | M27C256B-80B1X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678420 | M27C256B-80B3 | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678421 | M27C256B-80B3TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678422 | M27C256B-80B3X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678423 | M27C256B-80B6 | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678424 | M27C256B-80B6TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678425 | M27C256B-80B6X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678426 | M27C256B-80B7TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678427 | M27C256B-80B7X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678428 | M27C256B-80C1 | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678429 | M27C256B-80C1TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678430 | M27C256B-80C1TR | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678431 | M27C256B-80C1X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678432 | M27C256B-80C3 | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678433 | M27C256B-80C3TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678434 | M27C256B-80C3TR | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678435 | M27C256B-80C3X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678436 | M27C256B-80C6 | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678437 | M27C256B-80C6TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678438 | M27C256B-80C6TR | 256 Kbytes (32kb x 8) EPROM, 5V, 80ns | SGS Thomson Microelectronics |
| 678439 | M27C256B-80C6X | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
| 678440 | M27C256B-80C7TR | 256 Kbit (32Kb x 8) EPROM y OTP UV EPROM | ST Microelectronics |
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