| Nr. | Part Name | Description | Manufacturer by |
| 678601 | M27C256B-90XF3 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678602 | M27C256B-90XF3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678603 | M27C256B-90XF3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678604 | M27C256B-90XF6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678605 | M27C256B-90XF6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678606 | M27C256B-90XF6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678607 | M27C256B-90XF7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678608 | M27C256B-90XF7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678609 | M27C256B-90XN1 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678610 | M27C256B-90XN1TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678611 | M27C256B-90XN1TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678612 | M27C256B-90XN1X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678613 | M27C256B-90XN3 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678614 | M27C256B-90XN3TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678615 | M27C256B-90XN3TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678616 | M27C256B-90XN3X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678617 | M27C256B-90XN6 | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678618 | M27C256B-90XN6TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678619 | M27C256B-90XN6TR | 256 Kbit (32Kb x 8) EPROM, 5V, 90ns | SGS Thomson Microelectronics |
| 678620 | M27C256B-90XN6X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678621 | M27C256B-90XN7TR | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678622 | M27C256B-90XN7X | 256 Kbit (32Kb x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678623 | M27C257 | ADDRESS LATCHED 256K (32K x 8) UV EPROM and OTP EPROM | ST Microelectronics |
| 678624 | M27C320 | 32 MBIT (4MB X8 OR 2MB X16) OTP EPROM | ST Microelectronics |
| 678625 | M27C320 | 32 MBIT (4MB X8 OR 2MB X16) OTP EPROM | SGS Thomson Microelectronics |
| 678626 | M27C320 | 32 Mbit (4Mb x8 or 2Mb x16) OTP EPROM | SGS Thomson Microelectronics |
| 678627 | M27C320-100M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 678628 | M27C320-100N1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 678629 | M27C320-120M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 678630 | M27C320-120N1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 678631 | M27C320-80M1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 678632 | M27C320-80N1 | 32 Mbit 4Mb x8 or 2Mb x16 OTP EPROM | ST Microelectronics |
| 678633 | M27C322 | 32 MBIT (2MB X16) UV EPROM AND OTP EPROM | ST Microelectronics |
| 678634 | M27C322 | 32 MBIT (2MB X16) UV EPROM AND OTP EPROM | SGS Thomson Microelectronics |
| 678635 | M27C322 | 32 Mbit (2Mb x16) UV EPROM and OTP EPROM | SGS Thomson Microelectronics |
| 678636 | M27C322-100F1 | 32 MBIT (2MB X16) UV EPROM AND OTP EPROM | ST Microelectronics |
| 678637 | M27C322-100F3 | 32 Mbit 2Mb x16 UV EPROM and OTP EPROM | ST Microelectronics |
| 678638 | M27C322-100F6 | 32 Mbit 2Mb x16 UV EPROM and OTP EPROM | ST Microelectronics |
| 678639 | M27C322-100P1 | 32 Mbit 2Mb x16 UV EPROM and OTP EPROM | ST Microelectronics |
| 678640 | M27C322-100P3 | 32 Mbit 2Mb x16 UV EPROM and OTP EPROM | ST Microelectronics |
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